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Commit | Line | Data |
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32c88cbc | 1 | /* |
64013800 | 2 | * Force feedback support for Logitech Gaming Wheels |
32c88cbc | 3 | * |
64013800 SW |
4 | * Including G27, G25, DFP, DFGT, FFEX, Momo, Momo2 & |
5 | * Speed Force Wireless (WiiWheel) | |
32c88cbc SW |
6 | * |
7 | * Copyright (c) 2010 Simon Wood <simon@mungewell.org> | |
8 | */ | |
9 | ||
10 | /* | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
24 | */ | |
25 | ||
26 | ||
27 | #include <linux/input.h> | |
28 | #include <linux/usb.h> | |
29 | #include <linux/hid.h> | |
30 | ||
31 | #include "usbhid/usbhid.h" | |
32 | #include "hid-lg.h" | |
a54dc779 | 33 | #include "hid-lg4ff.h" |
7362cd22 | 34 | #include "hid-ids.h" |
32c88cbc | 35 | |
30bb75d7 MM |
36 | #define to_hid_device(pdev) container_of(pdev, struct hid_device, dev) |
37 | ||
b96d23ec | 38 | #define LG4FF_MMODE_IS_MULTIMODE 0 |
e7c23449 MM |
39 | #define LG4FF_MMODE_SWITCHED 1 |
40 | #define LG4FF_MMODE_NOT_MULTIMODE 2 | |
41 | ||
b96d23ec MM |
42 | #define LG4FF_MODE_NATIVE_IDX 0 |
43 | #define LG4FF_MODE_DFEX_IDX 1 | |
44 | #define LG4FF_MODE_DFP_IDX 2 | |
45 | #define LG4FF_MODE_G25_IDX 3 | |
46 | #define LG4FF_MODE_DFGT_IDX 4 | |
47 | #define LG4FF_MODE_G27_IDX 5 | |
48 | #define LG4FF_MODE_MAX_IDX 6 | |
49 | ||
50 | #define LG4FF_MODE_NATIVE BIT(LG4FF_MODE_NATIVE_IDX) | |
51 | #define LG4FF_MODE_DFEX BIT(LG4FF_MODE_DFEX_IDX) | |
52 | #define LG4FF_MODE_DFP BIT(LG4FF_MODE_DFP_IDX) | |
53 | #define LG4FF_MODE_G25 BIT(LG4FF_MODE_G25_IDX) | |
54 | #define LG4FF_MODE_DFGT BIT(LG4FF_MODE_DFGT_IDX) | |
55 | #define LG4FF_MODE_G27 BIT(LG4FF_MODE_G27_IDX) | |
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" | |
65 | #define LG4FF_DFGT_TAG "DFGT" | |
66 | #define LG4FF_DFGT_NAME "Driving Force GT" | |
67 | ||
e7c23449 MM |
68 | #define LG4FF_FFEX_REV_MAJ 0x21 |
69 | #define LG4FF_FFEX_REV_MIN 0x00 | |
70 | ||
d0afd848 MM |
71 | static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range); |
72 | static void lg4ff_set_range_g25(struct hid_device *hid, u16 range); | |
30bb75d7 | 73 | |
72529c65 | 74 | struct lg4ff_wheel_data { |
2a552c30 MM |
75 | u32 product_id; |
76 | u16 range; | |
77 | u16 min_range; | |
78 | u16 max_range; | |
22bcefdc | 79 | #ifdef CONFIG_LEDS_CLASS |
2a552c30 | 80 | u8 led_state; |
22bcefdc SW |
81 | struct led_classdev *led[5]; |
82 | #endif | |
b96d23ec MM |
83 | u32 alternate_modes; |
84 | const char *real_tag; | |
85 | const char *real_name; | |
86 | u16 real_product_id; | |
72529c65 | 87 | |
30bb75d7 MM |
88 | void (*set_range)(struct hid_device *hid, u16 range); |
89 | }; | |
90 | ||
72529c65 | 91 | struct lg4ff_device_entry { |
c918fe78 | 92 | spinlock_t report_lock; /* Protect output HID report */ |
72529c65 MM |
93 | struct lg4ff_wheel_data wdata; |
94 | }; | |
95 | ||
7362cd22 | 96 | static const signed short lg4ff_wheel_effects[] = { |
32c88cbc SW |
97 | FF_CONSTANT, |
98 | FF_AUTOCENTER, | |
99 | -1 | |
100 | }; | |
101 | ||
7362cd22 | 102 | struct lg4ff_wheel { |
2a552c30 | 103 | const u32 product_id; |
7362cd22 | 104 | const signed short *ff_effects; |
2a552c30 MM |
105 | const u16 min_range; |
106 | const u16 max_range; | |
30bb75d7 | 107 | void (*set_range)(struct hid_device *hid, u16 range); |
7362cd22 MM |
108 | }; |
109 | ||
e7c23449 | 110 | struct lg4ff_compat_mode_switch { |
2a552c30 MM |
111 | const u8 cmd_count; /* Number of commands to send */ |
112 | const u8 cmd[]; | |
e7c23449 MM |
113 | }; |
114 | ||
115 | struct lg4ff_wheel_ident_info { | |
116 | const u16 mask; | |
117 | const u16 result; | |
118 | const u16 real_product_id; | |
119 | }; | |
120 | ||
121 | struct lg4ff_wheel_ident_checklist { | |
122 | const u32 count; | |
123 | const struct lg4ff_wheel_ident_info *models[]; | |
124 | }; | |
125 | ||
b96d23ec MM |
126 | struct lg4ff_multimode_wheel { |
127 | const u16 product_id; | |
128 | const u32 alternate_modes; | |
129 | const char *real_tag; | |
130 | const char *real_name; | |
131 | }; | |
132 | ||
133 | struct lg4ff_alternate_mode { | |
134 | const u16 product_id; | |
135 | const char *tag; | |
136 | const char *name; | |
137 | }; | |
138 | ||
7362cd22 | 139 | static const struct lg4ff_wheel lg4ff_devices[] = { |
30bb75d7 MM |
140 | {USB_DEVICE_ID_LOGITECH_WHEEL, lg4ff_wheel_effects, 40, 270, NULL}, |
141 | {USB_DEVICE_ID_LOGITECH_MOMO_WHEEL, lg4ff_wheel_effects, 40, 270, NULL}, | |
d0afd848 MM |
142 | {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_dfp}, |
143 | {USB_DEVICE_ID_LOGITECH_G25_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, | |
144 | {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, | |
145 | {USB_DEVICE_ID_LOGITECH_G27_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, | |
30bb75d7 MM |
146 | {USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2, lg4ff_wheel_effects, 40, 270, NULL}, |
147 | {USB_DEVICE_ID_LOGITECH_WII_WHEEL, lg4ff_wheel_effects, 40, 270, NULL} | |
7362cd22 MM |
148 | }; |
149 | ||
b96d23ec MM |
150 | static const struct lg4ff_multimode_wheel lg4ff_multimode_wheels[] = { |
151 | {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, | |
152 | LG4FF_MODE_NATIVE | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
153 | LG4FF_DFP_TAG, LG4FF_DFP_NAME}, | |
154 | {USB_DEVICE_ID_LOGITECH_G25_WHEEL, | |
155 | LG4FF_MODE_NATIVE | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
156 | LG4FF_G25_TAG, LG4FF_G25_NAME}, | |
157 | {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, | |
158 | LG4FF_MODE_NATIVE | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
159 | LG4FF_DFGT_TAG, LG4FF_DFGT_NAME}, | |
160 | {USB_DEVICE_ID_LOGITECH_G27_WHEEL, | |
161 | LG4FF_MODE_NATIVE | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
162 | LG4FF_G27_TAG, LG4FF_G27_NAME}, | |
163 | }; | |
164 | ||
165 | static const struct lg4ff_alternate_mode lg4ff_alternate_modes[] = { | |
166 | [LG4FF_MODE_NATIVE_IDX] = {0, "native", ""}, | |
167 | [LG4FF_MODE_DFEX_IDX] = {USB_DEVICE_ID_LOGITECH_WHEEL, LG4FF_DFEX_TAG, LG4FF_DFEX_NAME}, | |
168 | [LG4FF_MODE_DFP_IDX] = {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, LG4FF_DFP_TAG, LG4FF_DFP_NAME}, | |
169 | [LG4FF_MODE_G25_IDX] = {USB_DEVICE_ID_LOGITECH_G25_WHEEL, LG4FF_G25_TAG, LG4FF_G25_NAME}, | |
170 | [LG4FF_MODE_DFGT_IDX] = {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, LG4FF_DFGT_TAG, LG4FF_DFGT_NAME}, | |
171 | [LG4FF_MODE_G27_IDX] = {USB_DEVICE_ID_LOGITECH_G27_WHEEL, LG4FF_G27_TAG, LG4FF_G27_NAME} | |
172 | }; | |
173 | ||
e7c23449 MM |
174 | /* Multimode wheel identificators */ |
175 | static const struct lg4ff_wheel_ident_info lg4ff_dfp_ident_info = { | |
176 | 0xf000, | |
177 | 0x1000, | |
178 | USB_DEVICE_ID_LOGITECH_DFP_WHEEL | |
179 | }; | |
180 | ||
181 | static const struct lg4ff_wheel_ident_info lg4ff_g25_ident_info = { | |
182 | 0xff00, | |
183 | 0x1200, | |
184 | USB_DEVICE_ID_LOGITECH_G25_WHEEL | |
185 | }; | |
186 | ||
187 | static const struct lg4ff_wheel_ident_info lg4ff_g27_ident_info = { | |
188 | 0xfff0, | |
189 | 0x1230, | |
190 | USB_DEVICE_ID_LOGITECH_G27_WHEEL | |
96440c8a MM |
191 | }; |
192 | ||
e7c23449 MM |
193 | static const struct lg4ff_wheel_ident_info lg4ff_dfgt_ident_info = { |
194 | 0xff00, | |
195 | 0x1300, | |
196 | USB_DEVICE_ID_LOGITECH_DFGT_WHEEL | |
96440c8a MM |
197 | }; |
198 | ||
e7c23449 MM |
199 | /* Multimode wheel identification checklists */ |
200 | static const struct lg4ff_wheel_ident_checklist lg4ff_main_checklist = { | |
201 | 4, | |
202 | {&lg4ff_dfgt_ident_info, | |
203 | &lg4ff_g27_ident_info, | |
204 | &lg4ff_g25_ident_info, | |
205 | &lg4ff_dfp_ident_info} | |
206 | }; | |
207 | ||
208 | /* Compatibility mode switching commands */ | |
f31a2de3 MM |
209 | /* EXT_CMD9 - Understood by G27 and DFGT */ |
210 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfex = { | |
211 | 2, | |
212 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
213 | 0xf8, 0x09, 0x00, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DF-EX with detach */ | |
96440c8a MM |
214 | }; |
215 | ||
f31a2de3 | 216 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfp = { |
96440c8a | 217 | 2, |
f31a2de3 MM |
218 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ |
219 | 0xf8, 0x09, 0x01, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DFP with detach */ | |
96440c8a MM |
220 | }; |
221 | ||
f31a2de3 MM |
222 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g25 = { |
223 | 2, | |
224 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
225 | 0xf8, 0x09, 0x02, 0x01, 0x00, 0x00, 0x00} /* Switch mode to G25 with detach */ | |
96440c8a MM |
226 | }; |
227 | ||
f31a2de3 | 228 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfgt = { |
96440c8a | 229 | 2, |
f31a2de3 MM |
230 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ |
231 | 0xf8, 0x09, 0x03, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DFGT with detach */ | |
232 | }; | |
233 | ||
234 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g27 = { | |
235 | 2, | |
236 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
237 | 0xf8, 0x09, 0x04, 0x01, 0x00, 0x00, 0x00} /* Switch mode to G27 with detach */ | |
238 | }; | |
239 | ||
240 | /* EXT_CMD1 - Understood by DFP, G25, G27 and DFGT */ | |
241 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext01_dfp = { | |
242 | 1, | |
243 | {0xf8, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00} | |
244 | }; | |
245 | ||
246 | /* EXT_CMD16 - Understood by G25 and G27 */ | |
247 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext16_g25 = { | |
248 | 1, | |
249 | {0xf8, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00} | |
96440c8a MM |
250 | }; |
251 | ||
2b24a960 | 252 | /* Recalculates X axis value accordingly to currently selected range */ |
2a552c30 | 253 | static s32 lg4ff_adjust_dfp_x_axis(s32 value, u16 range) |
2b24a960 | 254 | { |
2a552c30 MM |
255 | u16 max_range; |
256 | s32 new_value; | |
2b24a960 MM |
257 | |
258 | if (range == 900) | |
259 | return value; | |
260 | else if (range == 200) | |
261 | return value; | |
262 | else if (range < 200) | |
263 | max_range = 200; | |
264 | else | |
265 | max_range = 900; | |
266 | ||
267 | new_value = 8192 + mult_frac(value - 8192, max_range, range); | |
268 | if (new_value < 0) | |
269 | return 0; | |
270 | else if (new_value > 16383) | |
271 | return 16383; | |
272 | else | |
273 | return new_value; | |
274 | } | |
275 | ||
276 | int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field, | |
2a552c30 | 277 | struct hid_usage *usage, s32 value, struct lg_drv_data *drv_data) |
2b24a960 MM |
278 | { |
279 | struct lg4ff_device_entry *entry = drv_data->device_props; | |
2a552c30 | 280 | s32 new_value = 0; |
2b24a960 MM |
281 | |
282 | if (!entry) { | |
283 | hid_err(hid, "Device properties not found"); | |
284 | return 0; | |
285 | } | |
286 | ||
72529c65 | 287 | switch (entry->wdata.product_id) { |
2b24a960 MM |
288 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: |
289 | switch (usage->code) { | |
290 | case ABS_X: | |
72529c65 | 291 | new_value = lg4ff_adjust_dfp_x_axis(value, entry->wdata.range); |
2b24a960 MM |
292 | input_event(field->hidinput->input, usage->type, usage->code, new_value); |
293 | return 1; | |
294 | default: | |
295 | return 0; | |
296 | } | |
297 | default: | |
298 | return 0; | |
299 | } | |
300 | } | |
301 | ||
d0afd848 | 302 | static int lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *effect) |
32c88cbc SW |
303 | { |
304 | struct hid_device *hid = input_get_drvdata(dev); | |
305 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
306 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
c918fe78 MM |
307 | struct lg4ff_device_entry *entry; |
308 | struct lg_drv_data *drv_data; | |
309 | unsigned long flags; | |
2a552c30 | 310 | s32 *value = report->field[0]->value; |
32c88cbc SW |
311 | int x; |
312 | ||
c918fe78 MM |
313 | drv_data = hid_get_drvdata(hid); |
314 | if (!drv_data) { | |
315 | hid_err(hid, "Private driver data not found!\n"); | |
316 | return -EINVAL; | |
317 | } | |
318 | ||
319 | entry = drv_data->device_props; | |
320 | if (!entry) { | |
321 | hid_err(hid, "Device properties not found!\n"); | |
322 | return -EINVAL; | |
323 | } | |
324 | ||
a80fe5d6 | 325 | #define CLAMP(x) do { if (x < 0) x = 0; else if (x > 0xff) x = 0xff; } while (0) |
32c88cbc SW |
326 | |
327 | switch (effect->type) { | |
328 | case FF_CONSTANT: | |
329 | x = effect->u.ramp.start_level + 0x80; /* 0x80 is no force */ | |
330 | CLAMP(x); | |
56930e7a | 331 | |
c918fe78 | 332 | spin_lock_irqsave(&entry->report_lock, flags); |
56930e7a SW |
333 | if (x == 0x80) { |
334 | /* De-activate force in slot-1*/ | |
335 | value[0] = 0x13; | |
336 | value[1] = 0x00; | |
337 | value[2] = 0x00; | |
338 | value[3] = 0x00; | |
339 | value[4] = 0x00; | |
340 | value[5] = 0x00; | |
341 | value[6] = 0x00; | |
342 | ||
343 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); | |
c918fe78 | 344 | spin_unlock_irqrestore(&entry->report_lock, flags); |
56930e7a SW |
345 | return 0; |
346 | } | |
347 | ||
74479ba8 MM |
348 | value[0] = 0x11; /* Slot 1 */ |
349 | value[1] = 0x08; | |
350 | value[2] = x; | |
351 | value[3] = 0x80; | |
352 | value[4] = 0x00; | |
353 | value[5] = 0x00; | |
354 | value[6] = 0x00; | |
32c88cbc | 355 | |
d8814272 | 356 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
c918fe78 | 357 | spin_unlock_irqrestore(&entry->report_lock, flags); |
32c88cbc SW |
358 | break; |
359 | } | |
360 | return 0; | |
361 | } | |
362 | ||
6e2de8e0 MM |
363 | /* Sends default autocentering command compatible with |
364 | * all wheels except Formula Force EX */ | |
d0afd848 | 365 | static void lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitude) |
32c88cbc SW |
366 | { |
367 | struct hid_device *hid = input_get_drvdata(dev); | |
368 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
369 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
2a552c30 MM |
370 | s32 *value = report->field[0]->value; |
371 | u32 expand_a, expand_b; | |
1859762e SW |
372 | struct lg4ff_device_entry *entry; |
373 | struct lg_drv_data *drv_data; | |
c918fe78 | 374 | unsigned long flags; |
1859762e SW |
375 | |
376 | drv_data = hid_get_drvdata(hid); | |
377 | if (!drv_data) { | |
378 | hid_err(hid, "Private driver data not found!\n"); | |
379 | return; | |
380 | } | |
381 | ||
382 | entry = drv_data->device_props; | |
383 | if (!entry) { | |
384 | hid_err(hid, "Device properties not found!\n"); | |
385 | return; | |
386 | } | |
f8c23156 | 387 | |
d2c02da5 | 388 | /* De-activate Auto-Center */ |
c918fe78 | 389 | spin_lock_irqsave(&entry->report_lock, flags); |
d2c02da5 SW |
390 | if (magnitude == 0) { |
391 | value[0] = 0xf5; | |
392 | value[1] = 0x00; | |
393 | value[2] = 0x00; | |
394 | value[3] = 0x00; | |
395 | value[4] = 0x00; | |
396 | value[5] = 0x00; | |
397 | value[6] = 0x00; | |
398 | ||
399 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); | |
c918fe78 | 400 | spin_unlock_irqrestore(&entry->report_lock, flags); |
d2c02da5 SW |
401 | return; |
402 | } | |
403 | ||
f8c23156 SW |
404 | if (magnitude <= 0xaaaa) { |
405 | expand_a = 0x0c * magnitude; | |
406 | expand_b = 0x80 * magnitude; | |
407 | } else { | |
408 | expand_a = (0x0c * 0xaaaa) + 0x06 * (magnitude - 0xaaaa); | |
409 | expand_b = (0x80 * 0xaaaa) + 0xff * (magnitude - 0xaaaa); | |
410 | } | |
32c88cbc | 411 | |
1859762e | 412 | /* Adjust for non-MOMO wheels */ |
72529c65 | 413 | switch (entry->wdata.product_id) { |
1859762e SW |
414 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL: |
415 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2: | |
416 | break; | |
417 | default: | |
418 | expand_a = expand_a >> 1; | |
419 | break; | |
420 | } | |
421 | ||
74479ba8 MM |
422 | value[0] = 0xfe; |
423 | value[1] = 0x0d; | |
f8c23156 SW |
424 | value[2] = expand_a / 0xaaaa; |
425 | value[3] = expand_a / 0xaaaa; | |
426 | value[4] = expand_b / 0xaaaa; | |
74479ba8 MM |
427 | value[5] = 0x00; |
428 | value[6] = 0x00; | |
32c88cbc | 429 | |
d8814272 | 430 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
d2c02da5 SW |
431 | |
432 | /* Activate Auto-Center */ | |
433 | value[0] = 0x14; | |
434 | value[1] = 0x00; | |
435 | value[2] = 0x00; | |
436 | value[3] = 0x00; | |
437 | value[4] = 0x00; | |
438 | value[5] = 0x00; | |
439 | value[6] = 0x00; | |
440 | ||
441 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); | |
c918fe78 | 442 | spin_unlock_irqrestore(&entry->report_lock, flags); |
32c88cbc SW |
443 | } |
444 | ||
6e2de8e0 | 445 | /* Sends autocentering command compatible with Formula Force EX */ |
d0afd848 | 446 | static void lg4ff_set_autocenter_ffex(struct input_dev *dev, u16 magnitude) |
6e2de8e0 MM |
447 | { |
448 | struct hid_device *hid = input_get_drvdata(dev); | |
449 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
450 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
c918fe78 MM |
451 | struct lg4ff_device_entry *entry; |
452 | struct lg_drv_data *drv_data; | |
453 | unsigned long flags; | |
2a552c30 | 454 | s32 *value = report->field[0]->value; |
6e2de8e0 | 455 | magnitude = magnitude * 90 / 65535; |
6e2de8e0 | 456 | |
c918fe78 MM |
457 | drv_data = hid_get_drvdata(hid); |
458 | if (!drv_data) { | |
459 | hid_err(hid, "Private driver data not found!\n"); | |
460 | return; | |
461 | } | |
462 | ||
463 | entry = drv_data->device_props; | |
464 | if (!entry) { | |
465 | hid_err(hid, "Device properties not found!\n"); | |
466 | return; | |
467 | } | |
468 | ||
469 | spin_lock_irqsave(&entry->report_lock, flags); | |
74479ba8 MM |
470 | value[0] = 0xfe; |
471 | value[1] = 0x03; | |
472 | value[2] = magnitude >> 14; | |
473 | value[3] = magnitude >> 14; | |
474 | value[4] = magnitude; | |
475 | value[5] = 0x00; | |
476 | value[6] = 0x00; | |
6e2de8e0 | 477 | |
d8814272 | 478 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
c918fe78 | 479 | spin_unlock_irqrestore(&entry->report_lock, flags); |
6e2de8e0 MM |
480 | } |
481 | ||
30bb75d7 | 482 | /* Sends command to set range compatible with G25/G27/Driving Force GT */ |
d0afd848 | 483 | static void lg4ff_set_range_g25(struct hid_device *hid, u16 range) |
30bb75d7 MM |
484 | { |
485 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
486 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
c918fe78 MM |
487 | struct lg4ff_device_entry *entry; |
488 | struct lg_drv_data *drv_data; | |
489 | unsigned long flags; | |
2a552c30 | 490 | s32 *value = report->field[0]->value; |
74479ba8 | 491 | |
c918fe78 MM |
492 | drv_data = hid_get_drvdata(hid); |
493 | if (!drv_data) { | |
494 | hid_err(hid, "Private driver data not found!\n"); | |
495 | return; | |
496 | } | |
497 | ||
498 | entry = drv_data->device_props; | |
499 | if (!entry) { | |
500 | hid_err(hid, "Device properties not found!\n"); | |
501 | return; | |
502 | } | |
503 | ||
30bb75d7 MM |
504 | dbg_hid("G25/G27/DFGT: setting range to %u\n", range); |
505 | ||
c918fe78 | 506 | spin_lock_irqsave(&entry->report_lock, flags); |
74479ba8 MM |
507 | value[0] = 0xf8; |
508 | value[1] = 0x81; | |
509 | value[2] = range & 0x00ff; | |
510 | value[3] = (range & 0xff00) >> 8; | |
511 | value[4] = 0x00; | |
512 | value[5] = 0x00; | |
513 | value[6] = 0x00; | |
30bb75d7 | 514 | |
d8814272 | 515 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
c918fe78 | 516 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
517 | } |
518 | ||
519 | /* Sends commands to set range compatible with Driving Force Pro wheel */ | |
d0afd848 | 520 | static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range) |
30bb75d7 MM |
521 | { |
522 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
523 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
524 | int start_left, start_right, full_range; | |
c918fe78 MM |
525 | struct lg4ff_device_entry *entry; |
526 | struct lg_drv_data *drv_data; | |
527 | unsigned long flags; | |
2a552c30 | 528 | s32 *value = report->field[0]->value; |
74479ba8 | 529 | |
c918fe78 MM |
530 | drv_data = hid_get_drvdata(hid); |
531 | if (!drv_data) { | |
532 | hid_err(hid, "Private driver data not found!\n"); | |
533 | return; | |
534 | } | |
535 | ||
536 | entry = drv_data->device_props; | |
537 | if (!entry) { | |
538 | hid_err(hid, "Device properties not found!\n"); | |
539 | return; | |
540 | } | |
541 | ||
30bb75d7 MM |
542 | dbg_hid("Driving Force Pro: setting range to %u\n", range); |
543 | ||
544 | /* Prepare "coarse" limit command */ | |
c918fe78 | 545 | spin_lock_irqsave(&entry->report_lock, flags); |
74479ba8 | 546 | value[0] = 0xf8; |
a80fe5d6 | 547 | value[1] = 0x00; /* Set later */ |
74479ba8 MM |
548 | value[2] = 0x00; |
549 | value[3] = 0x00; | |
550 | value[4] = 0x00; | |
551 | value[5] = 0x00; | |
552 | value[6] = 0x00; | |
30bb75d7 MM |
553 | |
554 | if (range > 200) { | |
555 | report->field[0]->value[1] = 0x03; | |
556 | full_range = 900; | |
557 | } else { | |
558 | report->field[0]->value[1] = 0x02; | |
559 | full_range = 200; | |
560 | } | |
d8814272 | 561 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
562 | |
563 | /* Prepare "fine" limit command */ | |
74479ba8 MM |
564 | value[0] = 0x81; |
565 | value[1] = 0x0b; | |
566 | value[2] = 0x00; | |
567 | value[3] = 0x00; | |
568 | value[4] = 0x00; | |
569 | value[5] = 0x00; | |
570 | value[6] = 0x00; | |
30bb75d7 MM |
571 | |
572 | if (range == 200 || range == 900) { /* Do not apply any fine limit */ | |
d8814272 | 573 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
c918fe78 | 574 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
575 | return; |
576 | } | |
577 | ||
578 | /* Construct fine limit command */ | |
579 | start_left = (((full_range - range + 1) * 2047) / full_range); | |
580 | start_right = 0xfff - start_left; | |
581 | ||
74479ba8 MM |
582 | value[2] = start_left >> 4; |
583 | value[3] = start_right >> 4; | |
584 | value[4] = 0xff; | |
585 | value[5] = (start_right & 0xe) << 4 | (start_left & 0xe); | |
586 | value[6] = 0xff; | |
30bb75d7 | 587 | |
d8814272 | 588 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
c918fe78 | 589 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
590 | } |
591 | ||
f31a2de3 MM |
592 | static const struct lg4ff_compat_mode_switch *lg4ff_get_mode_switch_command(const u16 real_product_id, const u16 target_product_id) |
593 | { | |
594 | switch (real_product_id) { | |
595 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
596 | switch (target_product_id) { | |
597 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
598 | return &lg4ff_mode_switch_ext01_dfp; | |
599 | /* DFP can only be switched to its native mode */ | |
600 | default: | |
601 | return NULL; | |
602 | } | |
603 | break; | |
604 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
605 | switch (target_product_id) { | |
606 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
607 | return &lg4ff_mode_switch_ext01_dfp; | |
608 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
609 | return &lg4ff_mode_switch_ext16_g25; | |
610 | /* G25 can only be switched to DFP mode or its native mode */ | |
611 | default: | |
612 | return NULL; | |
613 | } | |
614 | break; | |
615 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
616 | switch (target_product_id) { | |
617 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
618 | return &lg4ff_mode_switch_ext09_dfex; | |
619 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
620 | return &lg4ff_mode_switch_ext09_dfp; | |
621 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
622 | return &lg4ff_mode_switch_ext09_g25; | |
623 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
624 | return &lg4ff_mode_switch_ext09_g27; | |
625 | /* G27 can only be switched to DF-EX, DFP, G25 or its native mode */ | |
626 | default: | |
627 | return NULL; | |
628 | } | |
629 | break; | |
630 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
631 | switch (target_product_id) { | |
632 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
633 | return &lg4ff_mode_switch_ext09_dfex; | |
634 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
635 | return &lg4ff_mode_switch_ext09_dfp; | |
636 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
637 | return &lg4ff_mode_switch_ext09_dfgt; | |
638 | /* DFGT can only be switched to DF-EX, DFP or its native mode */ | |
639 | default: | |
640 | return NULL; | |
641 | } | |
642 | break; | |
643 | /* No other wheels have multiple modes */ | |
644 | default: | |
645 | return NULL; | |
646 | } | |
647 | } | |
648 | ||
e7c23449 | 649 | static int lg4ff_switch_compatibility_mode(struct hid_device *hid, const struct lg4ff_compat_mode_switch *s) |
96440c8a | 650 | { |
c1740d13 MM |
651 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; |
652 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
c918fe78 MM |
653 | struct lg4ff_device_entry *entry; |
654 | struct lg_drv_data *drv_data; | |
655 | unsigned long flags; | |
2a552c30 | 656 | s32 *value = report->field[0]->value; |
e7c23449 | 657 | u8 i; |
96440c8a | 658 | |
c918fe78 MM |
659 | drv_data = hid_get_drvdata(hid); |
660 | if (!drv_data) { | |
661 | hid_err(hid, "Private driver data not found!\n"); | |
662 | return -EINVAL; | |
663 | } | |
664 | ||
665 | entry = drv_data->device_props; | |
666 | if (!entry) { | |
667 | hid_err(hid, "Device properties not found!\n"); | |
668 | return -EINVAL; | |
669 | } | |
670 | ||
671 | spin_lock_irqsave(&entry->report_lock, flags); | |
e7c23449 | 672 | for (i = 0; i < s->cmd_count; i++) { |
c1740d13 | 673 | u8 j; |
96440c8a | 674 | |
c1740d13 MM |
675 | for (j = 0; j < 7; j++) |
676 | value[j] = s->cmd[j + (7*i)]; | |
677 | ||
678 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); | |
96440c8a | 679 | } |
c918fe78 | 680 | spin_unlock_irqrestore(&entry->report_lock, flags); |
c1740d13 | 681 | hid_hw_wait(hid); |
e7c23449 | 682 | return 0; |
96440c8a | 683 | } |
32c88cbc | 684 | |
b96d23ec MM |
685 | static ssize_t lg4ff_alternate_modes_show(struct device *dev, struct device_attribute *attr, char *buf) |
686 | { | |
687 | struct hid_device *hid = to_hid_device(dev); | |
688 | struct lg4ff_device_entry *entry; | |
689 | struct lg_drv_data *drv_data; | |
690 | ssize_t count = 0; | |
691 | int i; | |
692 | ||
693 | drv_data = hid_get_drvdata(hid); | |
694 | if (!drv_data) { | |
695 | hid_err(hid, "Private driver data not found!\n"); | |
696 | return 0; | |
697 | } | |
698 | ||
699 | entry = drv_data->device_props; | |
700 | if (!entry) { | |
701 | hid_err(hid, "Device properties not found!\n"); | |
702 | return 0; | |
703 | } | |
704 | ||
72529c65 | 705 | if (!entry->wdata.real_name) { |
b96d23ec MM |
706 | hid_err(hid, "NULL pointer to string\n"); |
707 | return 0; | |
708 | } | |
709 | ||
710 | for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) { | |
72529c65 | 711 | if (entry->wdata.alternate_modes & BIT(i)) { |
b96d23ec MM |
712 | /* Print tag and full name */ |
713 | count += scnprintf(buf + count, PAGE_SIZE - count, "%s: %s", | |
714 | lg4ff_alternate_modes[i].tag, | |
72529c65 | 715 | !lg4ff_alternate_modes[i].product_id ? entry->wdata.real_name : lg4ff_alternate_modes[i].name); |
b96d23ec MM |
716 | if (count >= PAGE_SIZE - 1) |
717 | return count; | |
718 | ||
719 | /* Mark the currently active mode with an asterisk */ | |
72529c65 MM |
720 | if (lg4ff_alternate_modes[i].product_id == entry->wdata.product_id || |
721 | (lg4ff_alternate_modes[i].product_id == 0 && entry->wdata.product_id == entry->wdata.real_product_id)) | |
b96d23ec MM |
722 | count += scnprintf(buf + count, PAGE_SIZE - count, " *\n"); |
723 | else | |
724 | count += scnprintf(buf + count, PAGE_SIZE - count, "\n"); | |
725 | ||
726 | if (count >= PAGE_SIZE - 1) | |
727 | return count; | |
728 | } | |
729 | } | |
730 | ||
731 | return count; | |
732 | } | |
733 | ||
734 | static ssize_t lg4ff_alternate_modes_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
735 | { | |
f31a2de3 MM |
736 | struct hid_device *hid = to_hid_device(dev); |
737 | struct lg4ff_device_entry *entry; | |
738 | struct lg_drv_data *drv_data; | |
739 | const struct lg4ff_compat_mode_switch *s; | |
740 | u16 target_product_id = 0; | |
741 | int i, ret; | |
742 | char *lbuf; | |
743 | ||
744 | drv_data = hid_get_drvdata(hid); | |
745 | if (!drv_data) { | |
746 | hid_err(hid, "Private driver data not found!\n"); | |
747 | return -EINVAL; | |
748 | } | |
749 | ||
750 | entry = drv_data->device_props; | |
751 | if (!entry) { | |
752 | hid_err(hid, "Device properties not found!\n"); | |
753 | return -EINVAL; | |
754 | } | |
755 | ||
756 | /* Allow \n at the end of the input parameter */ | |
757 | lbuf = kasprintf(GFP_KERNEL, "%s", buf); | |
758 | if (!lbuf) | |
759 | return -ENOMEM; | |
760 | ||
761 | i = strlen(lbuf); | |
762 | if (lbuf[i-1] == '\n') { | |
763 | if (i == 1) { | |
764 | kfree(lbuf); | |
765 | return -EINVAL; | |
766 | } | |
767 | lbuf[i-1] = '\0'; | |
768 | } | |
769 | ||
770 | for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) { | |
771 | const u16 mode_product_id = lg4ff_alternate_modes[i].product_id; | |
772 | const char *tag = lg4ff_alternate_modes[i].tag; | |
773 | ||
72529c65 | 774 | if (entry->wdata.alternate_modes & BIT(i)) { |
f31a2de3 MM |
775 | if (!strcmp(tag, lbuf)) { |
776 | if (!mode_product_id) | |
72529c65 | 777 | target_product_id = entry->wdata.real_product_id; |
f31a2de3 MM |
778 | else |
779 | target_product_id = mode_product_id; | |
780 | break; | |
781 | } | |
782 | } | |
783 | } | |
784 | ||
785 | if (i == LG4FF_MODE_MAX_IDX) { | |
786 | hid_info(hid, "Requested mode \"%s\" is not supported by the device\n", lbuf); | |
787 | kfree(lbuf); | |
788 | return -EINVAL; | |
789 | } | |
790 | kfree(lbuf); /* Not needed anymore */ | |
791 | ||
72529c65 | 792 | if (target_product_id == entry->wdata.product_id) /* Nothing to do */ |
f31a2de3 MM |
793 | return count; |
794 | ||
795 | /* Automatic switching has to be disabled for the switch to DF-EX mode to work correctly */ | |
796 | if (target_product_id == USB_DEVICE_ID_LOGITECH_WHEEL && !lg4ff_no_autoswitch) { | |
797 | 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 | 798 | entry->wdata.real_name); |
f31a2de3 MM |
799 | return -EINVAL; |
800 | } | |
801 | ||
802 | /* Take care of hardware limitations */ | |
72529c65 MM |
803 | if ((entry->wdata.real_product_id == USB_DEVICE_ID_LOGITECH_DFP_WHEEL || entry->wdata.real_product_id == USB_DEVICE_ID_LOGITECH_G25_WHEEL) && |
804 | entry->wdata.product_id > target_product_id) { | |
805 | hid_info(hid, "\"%s\" cannot be switched back into \"%s\" mode\n", entry->wdata.real_name, lg4ff_alternate_modes[i].name); | |
f31a2de3 MM |
806 | return -EINVAL; |
807 | } | |
808 | ||
72529c65 | 809 | s = lg4ff_get_mode_switch_command(entry->wdata.real_product_id, target_product_id); |
f31a2de3 MM |
810 | if (!s) { |
811 | hid_err(hid, "Invalid target product ID %X\n", target_product_id); | |
812 | return -EINVAL; | |
813 | } | |
814 | ||
815 | ret = lg4ff_switch_compatibility_mode(hid, s); | |
816 | return (ret == 0 ? count : ret); | |
b96d23ec MM |
817 | } |
818 | static DEVICE_ATTR(alternate_modes, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_alternate_modes_show, lg4ff_alternate_modes_store); | |
819 | ||
fbf85e2a MM |
820 | /* Export the currently set range of the wheel */ |
821 | static ssize_t lg4ff_range_show(struct device *dev, struct device_attribute *attr, | |
822 | char *buf) | |
30bb75d7 | 823 | { |
30bb75d7 | 824 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
825 | struct lg4ff_device_entry *entry; |
826 | struct lg_drv_data *drv_data; | |
30bb75d7 MM |
827 | size_t count; |
828 | ||
3b6b17b7 MM |
829 | drv_data = hid_get_drvdata(hid); |
830 | if (!drv_data) { | |
831 | hid_err(hid, "Private driver data not found!\n"); | |
832 | return 0; | |
30bb75d7 | 833 | } |
3b6b17b7 MM |
834 | |
835 | entry = drv_data->device_props; | |
836 | if (!entry) { | |
837 | hid_err(hid, "Device properties not found!\n"); | |
30bb75d7 MM |
838 | return 0; |
839 | } | |
840 | ||
72529c65 | 841 | count = scnprintf(buf, PAGE_SIZE, "%u\n", entry->wdata.range); |
30bb75d7 MM |
842 | return count; |
843 | } | |
844 | ||
845 | /* Set range to user specified value, call appropriate function | |
846 | * according to the type of the wheel */ | |
fbf85e2a MM |
847 | static ssize_t lg4ff_range_store(struct device *dev, struct device_attribute *attr, |
848 | const char *buf, size_t count) | |
30bb75d7 | 849 | { |
30bb75d7 | 850 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
851 | struct lg4ff_device_entry *entry; |
852 | struct lg_drv_data *drv_data; | |
2a552c30 | 853 | u16 range = simple_strtoul(buf, NULL, 10); |
30bb75d7 | 854 | |
3b6b17b7 MM |
855 | drv_data = hid_get_drvdata(hid); |
856 | if (!drv_data) { | |
857 | hid_err(hid, "Private driver data not found!\n"); | |
29ff6657 | 858 | return -EINVAL; |
30bb75d7 | 859 | } |
3b6b17b7 MM |
860 | |
861 | entry = drv_data->device_props; | |
862 | if (!entry) { | |
863 | hid_err(hid, "Device properties not found!\n"); | |
29ff6657 | 864 | return -EINVAL; |
30bb75d7 MM |
865 | } |
866 | ||
867 | if (range == 0) | |
72529c65 | 868 | range = entry->wdata.max_range; |
30bb75d7 MM |
869 | |
870 | /* Check if the wheel supports range setting | |
871 | * and that the range is within limits for the wheel */ | |
72529c65 MM |
872 | if (entry->wdata.set_range && range >= entry->wdata.min_range && range <= entry->wdata.max_range) { |
873 | entry->wdata.set_range(hid, range); | |
874 | entry->wdata.range = range; | |
30bb75d7 MM |
875 | } |
876 | ||
877 | return count; | |
878 | } | |
fbf85e2a | 879 | static DEVICE_ATTR(range, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_range_show, lg4ff_range_store); |
30bb75d7 | 880 | |
b96d23ec MM |
881 | static ssize_t lg4ff_real_id_show(struct device *dev, struct device_attribute *attr, char *buf) |
882 | { | |
883 | struct hid_device *hid = to_hid_device(dev); | |
884 | struct lg4ff_device_entry *entry; | |
885 | struct lg_drv_data *drv_data; | |
886 | size_t count; | |
887 | ||
888 | drv_data = hid_get_drvdata(hid); | |
889 | if (!drv_data) { | |
890 | hid_err(hid, "Private driver data not found!\n"); | |
891 | return 0; | |
892 | } | |
893 | ||
894 | entry = drv_data->device_props; | |
895 | if (!entry) { | |
896 | hid_err(hid, "Device properties not found!\n"); | |
897 | return 0; | |
898 | } | |
899 | ||
72529c65 | 900 | if (!entry->wdata.real_tag || !entry->wdata.real_name) { |
b96d23ec MM |
901 | hid_err(hid, "NULL pointer to string\n"); |
902 | return 0; | |
903 | } | |
904 | ||
72529c65 | 905 | count = scnprintf(buf, PAGE_SIZE, "%s: %s\n", entry->wdata.real_tag, entry->wdata.real_name); |
b96d23ec MM |
906 | return count; |
907 | } | |
908 | ||
909 | static ssize_t lg4ff_real_id_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
910 | { | |
911 | /* Real ID is a read-only value */ | |
912 | return -EPERM; | |
913 | } | |
914 | static DEVICE_ATTR(real_id, S_IRUGO, lg4ff_real_id_show, lg4ff_real_id_store); | |
915 | ||
22bcefdc | 916 | #ifdef CONFIG_LEDS_CLASS |
2a552c30 | 917 | static void lg4ff_set_leds(struct hid_device *hid, u8 leds) |
22bcefdc SW |
918 | { |
919 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
920 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
c918fe78 MM |
921 | struct lg_drv_data *drv_data; |
922 | struct lg4ff_device_entry *entry; | |
923 | unsigned long flags; | |
2a552c30 | 924 | s32 *value = report->field[0]->value; |
74479ba8 | 925 | |
c918fe78 MM |
926 | drv_data = hid_get_drvdata(hid); |
927 | if (!drv_data) { | |
928 | hid_err(hid, "Private driver data not found!\n"); | |
929 | return; | |
930 | } | |
931 | ||
932 | entry = drv_data->device_props; | |
933 | if (!entry) { | |
934 | hid_err(hid, "Device properties not found!\n"); | |
935 | return; | |
936 | } | |
937 | ||
938 | spin_lock_irqsave(&entry->report_lock, flags); | |
74479ba8 MM |
939 | value[0] = 0xf8; |
940 | value[1] = 0x12; | |
941 | value[2] = leds; | |
942 | value[3] = 0x00; | |
943 | value[4] = 0x00; | |
944 | value[5] = 0x00; | |
945 | value[6] = 0x00; | |
d8814272 | 946 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
c918fe78 | 947 | spin_unlock_irqrestore(&entry->report_lock, flags); |
22bcefdc SW |
948 | } |
949 | ||
950 | static void lg4ff_led_set_brightness(struct led_classdev *led_cdev, | |
951 | enum led_brightness value) | |
952 | { | |
953 | struct device *dev = led_cdev->dev->parent; | |
954 | struct hid_device *hid = container_of(dev, struct hid_device, dev); | |
4629fd16 | 955 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
956 | struct lg4ff_device_entry *entry; |
957 | int i, state = 0; | |
958 | ||
959 | if (!drv_data) { | |
960 | hid_err(hid, "Device data not found."); | |
961 | return; | |
962 | } | |
963 | ||
371a1d9e | 964 | entry = drv_data->device_props; |
22bcefdc SW |
965 | |
966 | if (!entry) { | |
967 | hid_err(hid, "Device properties not found."); | |
968 | return; | |
969 | } | |
970 | ||
971 | for (i = 0; i < 5; i++) { | |
72529c65 | 972 | if (led_cdev != entry->wdata.led[i]) |
22bcefdc | 973 | continue; |
72529c65 | 974 | state = (entry->wdata.led_state >> i) & 1; |
22bcefdc | 975 | if (value == LED_OFF && state) { |
72529c65 MM |
976 | entry->wdata.led_state &= ~(1 << i); |
977 | lg4ff_set_leds(hid, entry->wdata.led_state); | |
22bcefdc | 978 | } else if (value != LED_OFF && !state) { |
72529c65 MM |
979 | entry->wdata.led_state |= 1 << i; |
980 | lg4ff_set_leds(hid, entry->wdata.led_state); | |
22bcefdc SW |
981 | } |
982 | break; | |
983 | } | |
984 | } | |
985 | ||
986 | static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cdev) | |
987 | { | |
988 | struct device *dev = led_cdev->dev->parent; | |
989 | struct hid_device *hid = container_of(dev, struct hid_device, dev); | |
4629fd16 | 990 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
991 | struct lg4ff_device_entry *entry; |
992 | int i, value = 0; | |
993 | ||
994 | if (!drv_data) { | |
995 | hid_err(hid, "Device data not found."); | |
996 | return LED_OFF; | |
997 | } | |
998 | ||
371a1d9e | 999 | entry = drv_data->device_props; |
22bcefdc SW |
1000 | |
1001 | if (!entry) { | |
1002 | hid_err(hid, "Device properties not found."); | |
1003 | return LED_OFF; | |
1004 | } | |
1005 | ||
1006 | for (i = 0; i < 5; i++) | |
72529c65 MM |
1007 | if (led_cdev == entry->wdata.led[i]) { |
1008 | value = (entry->wdata.led_state >> i) & 1; | |
22bcefdc SW |
1009 | break; |
1010 | } | |
1011 | ||
1012 | return value ? LED_FULL : LED_OFF; | |
1013 | } | |
1014 | #endif | |
1015 | ||
e7c23449 MM |
1016 | static u16 lg4ff_identify_multimode_wheel(struct hid_device *hid, const u16 reported_product_id, const u16 bcdDevice) |
1017 | { | |
1018 | const struct lg4ff_wheel_ident_checklist *checklist; | |
1019 | int i, from_idx, to_idx; | |
1020 | ||
1021 | switch (reported_product_id) { | |
1022 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
1023 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
1024 | checklist = &lg4ff_main_checklist; | |
1025 | from_idx = 0; | |
1026 | to_idx = checklist->count - 1; | |
1027 | break; | |
1028 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
1029 | checklist = &lg4ff_main_checklist; | |
1030 | from_idx = 0; | |
1031 | to_idx = checklist->count - 2; /* End identity check at G25 */ | |
1032 | break; | |
1033 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
1034 | checklist = &lg4ff_main_checklist; | |
1035 | from_idx = 1; /* Start identity check at G27 */ | |
1036 | to_idx = checklist->count - 3; /* End identity check at G27 */ | |
1037 | break; | |
1038 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
1039 | checklist = &lg4ff_main_checklist; | |
1040 | from_idx = 0; | |
1041 | to_idx = checklist->count - 4; /* End identity check at DFGT */ | |
1042 | break; | |
1043 | default: | |
1044 | return 0; | |
1045 | } | |
1046 | ||
1047 | for (i = from_idx; i <= to_idx; i++) { | |
1048 | const u16 mask = checklist->models[i]->mask; | |
1049 | const u16 result = checklist->models[i]->result; | |
1050 | const u16 real_product_id = checklist->models[i]->real_product_id; | |
1051 | ||
1052 | if ((bcdDevice & mask) == result) { | |
1053 | dbg_hid("Found wheel with real PID %X whose reported PID is %X\n", real_product_id, reported_product_id); | |
1054 | return real_product_id; | |
1055 | } | |
1056 | } | |
1057 | ||
f31a2de3 MM |
1058 | /* No match found. This is either Driving Force or an unknown |
1059 | * wheel model, do not touch it */ | |
e7c23449 MM |
1060 | dbg_hid("Wheel with bcdDevice %X was not recognized as multimode wheel, leaving in its current mode\n", bcdDevice); |
1061 | return 0; | |
1062 | } | |
1063 | ||
1064 | static int lg4ff_handle_multimode_wheel(struct hid_device *hid, u16 *real_product_id, const u16 bcdDevice) | |
1065 | { | |
1066 | const u16 reported_product_id = hid->product; | |
1067 | int ret; | |
1068 | ||
1069 | *real_product_id = lg4ff_identify_multimode_wheel(hid, reported_product_id, bcdDevice); | |
1070 | /* Probed wheel is not a multimode wheel */ | |
1071 | if (!*real_product_id) { | |
1072 | *real_product_id = reported_product_id; | |
1073 | dbg_hid("Wheel is not a multimode wheel\n"); | |
1074 | return LG4FF_MMODE_NOT_MULTIMODE; | |
1075 | } | |
1076 | ||
1077 | /* Switch from "Driving Force" mode to native mode automatically. | |
1078 | * Otherwise keep the wheel in its current mode */ | |
1079 | if (reported_product_id == USB_DEVICE_ID_LOGITECH_WHEEL && | |
a54dc779 MM |
1080 | reported_product_id != *real_product_id && |
1081 | !lg4ff_no_autoswitch) { | |
f31a2de3 | 1082 | const struct lg4ff_compat_mode_switch *s = lg4ff_get_mode_switch_command(*real_product_id, *real_product_id); |
e7c23449 | 1083 | |
f31a2de3 | 1084 | if (!s) { |
e7c23449 | 1085 | hid_err(hid, "Invalid product id %X\n", *real_product_id); |
b96d23ec | 1086 | return LG4FF_MMODE_NOT_MULTIMODE; |
e7c23449 MM |
1087 | } |
1088 | ||
1089 | ret = lg4ff_switch_compatibility_mode(hid, s); | |
1090 | if (ret) { | |
1091 | /* Wheel could not have been switched to native mode, | |
1092 | * leave it in "Driving Force" mode and continue */ | |
1093 | hid_err(hid, "Unable to switch wheel mode, errno %d\n", ret); | |
b96d23ec | 1094 | return LG4FF_MMODE_IS_MULTIMODE; |
e7c23449 MM |
1095 | } |
1096 | return LG4FF_MMODE_SWITCHED; | |
1097 | } | |
1098 | ||
b96d23ec | 1099 | return LG4FF_MMODE_IS_MULTIMODE; |
e7c23449 MM |
1100 | } |
1101 | ||
1102 | ||
32c88cbc SW |
1103 | int lg4ff_init(struct hid_device *hid) |
1104 | { | |
1105 | struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); | |
32c88cbc | 1106 | struct input_dev *dev = hidinput->input; |
e7c23449 MM |
1107 | const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor); |
1108 | const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice); | |
30bb75d7 | 1109 | struct lg4ff_device_entry *entry; |
3b6b17b7 | 1110 | struct lg_drv_data *drv_data; |
b96d23ec MM |
1111 | int error, i, j; |
1112 | int mmode_ret, mmode_idx = -1; | |
e7c23449 | 1113 | u16 real_product_id; |
32c88cbc | 1114 | |
32c88cbc | 1115 | /* Check that the report looks ok */ |
0fb6bd06 | 1116 | if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7)) |
32c88cbc | 1117 | return -1; |
30bb75d7 | 1118 | |
72529c65 MM |
1119 | drv_data = hid_get_drvdata(hid); |
1120 | if (!drv_data) { | |
1121 | hid_err(hid, "Cannot add device, private driver data not allocated\n"); | |
1122 | return -1; | |
1123 | } | |
1124 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); | |
1125 | if (!entry) | |
1126 | return -ENOMEM; | |
c918fe78 | 1127 | spin_lock_init(&entry->report_lock); |
72529c65 MM |
1128 | drv_data->device_props = entry; |
1129 | ||
e7c23449 MM |
1130 | /* Check if a multimode wheel has been connected and |
1131 | * handle it appropriately */ | |
b96d23ec | 1132 | mmode_ret = lg4ff_handle_multimode_wheel(hid, &real_product_id, bcdDevice); |
e7c23449 MM |
1133 | |
1134 | /* Wheel has been told to switch to native mode. There is no point in going on | |
1135 | * with the initialization as the wheel will do a USB reset when it switches mode | |
1136 | */ | |
b96d23ec | 1137 | if (mmode_ret == LG4FF_MMODE_SWITCHED) |
e7c23449 | 1138 | return 0; |
72529c65 MM |
1139 | else if (mmode_ret < 0) { |
1140 | hid_err(hid, "Unable to switch device mode during initialization, errno %d\n", mmode_ret); | |
1141 | error = mmode_ret; | |
1142 | goto err_init; | |
1143 | } | |
e7c23449 | 1144 | |
7362cd22 MM |
1145 | /* Check what wheel has been connected */ |
1146 | for (i = 0; i < ARRAY_SIZE(lg4ff_devices); i++) { | |
1147 | if (hid->product == lg4ff_devices[i].product_id) { | |
1148 | dbg_hid("Found compatible device, product ID %04X\n", lg4ff_devices[i].product_id); | |
1149 | break; | |
1150 | } | |
1151 | } | |
1152 | ||
1153 | if (i == ARRAY_SIZE(lg4ff_devices)) { | |
9c2a6bd1 MM |
1154 | hid_err(hid, "This device is flagged to be handled by the lg4ff module but this module does not know how to handle it. " |
1155 | "Please report this as a bug to LKML, Simon Wood <simon@mungewell.org> or " | |
1156 | "Michal Maly <madcatxster@devoid-pointer.net>\n"); | |
72529c65 MM |
1157 | error = -1; |
1158 | goto err_init; | |
7362cd22 | 1159 | } |
32c88cbc | 1160 | |
b96d23ec MM |
1161 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1162 | for (mmode_idx = 0; mmode_idx < ARRAY_SIZE(lg4ff_multimode_wheels); mmode_idx++) { | |
1163 | if (real_product_id == lg4ff_multimode_wheels[mmode_idx].product_id) | |
1164 | break; | |
1165 | } | |
1166 | ||
1167 | if (mmode_idx == ARRAY_SIZE(lg4ff_multimode_wheels)) { | |
1168 | hid_err(hid, "Device product ID %X is not listed as a multimode wheel", real_product_id); | |
72529c65 MM |
1169 | error = -1; |
1170 | goto err_init; | |
b96d23ec MM |
1171 | } |
1172 | } | |
1173 | ||
7362cd22 MM |
1174 | /* Set supported force feedback capabilities */ |
1175 | for (j = 0; lg4ff_devices[i].ff_effects[j] >= 0; j++) | |
1176 | set_bit(lg4ff_devices[i].ff_effects[j], dev->ffbit); | |
32c88cbc | 1177 | |
d0afd848 | 1178 | error = input_ff_create_memless(dev, NULL, lg4ff_play); |
32c88cbc SW |
1179 | |
1180 | if (error) | |
72529c65 | 1181 | goto err_init; |
30bb75d7 | 1182 | |
72529c65 MM |
1183 | entry->wdata.product_id = lg4ff_devices[i].product_id; |
1184 | entry->wdata.real_product_id = real_product_id; | |
1185 | entry->wdata.min_range = lg4ff_devices[i].min_range; | |
1186 | entry->wdata.max_range = lg4ff_devices[i].max_range; | |
1187 | entry->wdata.set_range = lg4ff_devices[i].set_range; | |
b96d23ec MM |
1188 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1189 | BUG_ON(mmode_idx == -1); | |
72529c65 MM |
1190 | entry->wdata.alternate_modes = lg4ff_multimode_wheels[mmode_idx].alternate_modes; |
1191 | entry->wdata.real_tag = lg4ff_multimode_wheels[mmode_idx].real_tag; | |
1192 | entry->wdata.real_name = lg4ff_multimode_wheels[mmode_idx].real_name; | |
b96d23ec | 1193 | } |
30bb75d7 | 1194 | |
114a55cf SW |
1195 | /* Check if autocentering is available and |
1196 | * set the centering force to zero by default */ | |
1197 | if (test_bit(FF_AUTOCENTER, dev->ffbit)) { | |
e7c23449 MM |
1198 | /* Formula Force EX expects different autocentering command */ |
1199 | if ((bcdDevice >> 8) == LG4FF_FFEX_REV_MAJ && | |
1200 | (bcdDevice & 0xff) == LG4FF_FFEX_REV_MIN) | |
d0afd848 | 1201 | dev->ff->set_autocenter = lg4ff_set_autocenter_ffex; |
114a55cf | 1202 | else |
d0afd848 | 1203 | dev->ff->set_autocenter = lg4ff_set_autocenter_default; |
114a55cf SW |
1204 | |
1205 | dev->ff->set_autocenter(dev, 0); | |
1206 | } | |
1207 | ||
30bb75d7 MM |
1208 | /* Create sysfs interface */ |
1209 | error = device_create_file(&hid->dev, &dev_attr_range); | |
1210 | if (error) | |
72529c65 | 1211 | goto err_init; |
b96d23ec MM |
1212 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1213 | error = device_create_file(&hid->dev, &dev_attr_real_id); | |
1214 | if (error) | |
72529c65 MM |
1215 | goto err_init; |
1216 | ||
b96d23ec MM |
1217 | error = device_create_file(&hid->dev, &dev_attr_alternate_modes); |
1218 | if (error) | |
72529c65 | 1219 | goto err_init; |
b96d23ec | 1220 | } |
30bb75d7 MM |
1221 | dbg_hid("sysfs interface created\n"); |
1222 | ||
1223 | /* Set the maximum range to start with */ | |
72529c65 MM |
1224 | entry->wdata.range = entry->wdata.max_range; |
1225 | if (entry->wdata.set_range) | |
1226 | entry->wdata.set_range(hid, entry->wdata.range); | |
30bb75d7 | 1227 | |
22bcefdc SW |
1228 | #ifdef CONFIG_LEDS_CLASS |
1229 | /* register led subsystem - G27 only */ | |
72529c65 | 1230 | entry->wdata.led_state = 0; |
22bcefdc | 1231 | for (j = 0; j < 5; j++) |
72529c65 | 1232 | entry->wdata.led[j] = NULL; |
22bcefdc SW |
1233 | |
1234 | if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G27_WHEEL) { | |
1235 | struct led_classdev *led; | |
1236 | size_t name_sz; | |
1237 | char *name; | |
1238 | ||
1239 | lg4ff_set_leds(hid, 0); | |
1240 | ||
1241 | name_sz = strlen(dev_name(&hid->dev)) + 8; | |
1242 | ||
1243 | for (j = 0; j < 5; j++) { | |
1244 | led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL); | |
1245 | if (!led) { | |
1246 | hid_err(hid, "can't allocate memory for LED %d\n", j); | |
72529c65 | 1247 | goto err_leds; |
22bcefdc SW |
1248 | } |
1249 | ||
1250 | name = (void *)(&led[1]); | |
1251 | snprintf(name, name_sz, "%s::RPM%d", dev_name(&hid->dev), j+1); | |
1252 | led->name = name; | |
1253 | led->brightness = 0; | |
1254 | led->max_brightness = 1; | |
1255 | led->brightness_get = lg4ff_led_get_brightness; | |
1256 | led->brightness_set = lg4ff_led_set_brightness; | |
1257 | ||
72529c65 | 1258 | entry->wdata.led[j] = led; |
22bcefdc SW |
1259 | error = led_classdev_register(&hid->dev, led); |
1260 | ||
1261 | if (error) { | |
1262 | hid_err(hid, "failed to register LED %d. Aborting.\n", j); | |
72529c65 | 1263 | err_leds: |
22bcefdc SW |
1264 | /* Deregister LEDs (if any) */ |
1265 | for (j = 0; j < 5; j++) { | |
72529c65 MM |
1266 | led = entry->wdata.led[j]; |
1267 | entry->wdata.led[j] = NULL; | |
22bcefdc SW |
1268 | if (!led) |
1269 | continue; | |
1270 | led_classdev_unregister(led); | |
1271 | kfree(led); | |
1272 | } | |
1273 | goto out; /* Let the driver continue without LEDs */ | |
1274 | } | |
1275 | } | |
1276 | } | |
22bcefdc | 1277 | out: |
c6e6dc87 | 1278 | #endif |
64013800 | 1279 | hid_info(hid, "Force feedback support for Logitech Gaming Wheels\n"); |
32c88cbc | 1280 | return 0; |
72529c65 MM |
1281 | |
1282 | err_init: | |
1283 | drv_data->device_props = NULL; | |
1284 | kfree(entry); | |
1285 | return error; | |
32c88cbc SW |
1286 | } |
1287 | ||
30bb75d7 MM |
1288 | int lg4ff_deinit(struct hid_device *hid) |
1289 | { | |
30bb75d7 | 1290 | struct lg4ff_device_entry *entry; |
3b6b17b7 MM |
1291 | struct lg_drv_data *drv_data; |
1292 | ||
3b6b17b7 MM |
1293 | drv_data = hid_get_drvdata(hid); |
1294 | if (!drv_data) { | |
1295 | hid_err(hid, "Error while deinitializing device, no private driver data.\n"); | |
1296 | return -1; | |
30bb75d7 | 1297 | } |
3b6b17b7 | 1298 | entry = drv_data->device_props; |
e7c23449 MM |
1299 | if (!entry) |
1300 | goto out; /* Nothing more to do */ | |
1301 | ||
b96d23ec | 1302 | /* Multimode devices will have at least the "MODE_NATIVE" bit set */ |
72529c65 | 1303 | if (entry->wdata.alternate_modes) { |
b96d23ec MM |
1304 | device_remove_file(&hid->dev, &dev_attr_real_id); |
1305 | device_remove_file(&hid->dev, &dev_attr_alternate_modes); | |
1306 | } | |
1307 | ||
72529c65 | 1308 | device_remove_file(&hid->dev, &dev_attr_range); |
22bcefdc SW |
1309 | #ifdef CONFIG_LEDS_CLASS |
1310 | { | |
1311 | int j; | |
1312 | struct led_classdev *led; | |
1313 | ||
1314 | /* Deregister LEDs (if any) */ | |
1315 | for (j = 0; j < 5; j++) { | |
1316 | ||
72529c65 MM |
1317 | led = entry->wdata.led[j]; |
1318 | entry->wdata.led[j] = NULL; | |
22bcefdc SW |
1319 | if (!led) |
1320 | continue; | |
1321 | led_classdev_unregister(led); | |
1322 | kfree(led); | |
1323 | } | |
1324 | } | |
1325 | #endif | |
b211a638 MM |
1326 | hid_hw_stop(hid); |
1327 | drv_data->device_props = NULL; | |
22bcefdc | 1328 | |
3b6b17b7 | 1329 | kfree(entry); |
e7c23449 | 1330 | out: |
30bb75d7 MM |
1331 | dbg_hid("Device successfully unregistered\n"); |
1332 | return 0; | |
1333 | } |