Commit | Line | Data |
---|---|---|
32c88cbc | 1 | /* |
64013800 | 2 | * Force feedback support for Logitech Gaming Wheels |
32c88cbc | 3 | * |
64013800 SW |
4 | * Including G27, G25, DFP, DFGT, FFEX, Momo, Momo2 & |
5 | * Speed Force Wireless (WiiWheel) | |
32c88cbc SW |
6 | * |
7 | * Copyright (c) 2010 Simon Wood <simon@mungewell.org> | |
8 | */ | |
9 | ||
10 | /* | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
24 | */ | |
25 | ||
26 | ||
27 | #include <linux/input.h> | |
28 | #include <linux/usb.h> | |
29 | #include <linux/hid.h> | |
30 | ||
31 | #include "usbhid/usbhid.h" | |
32 | #include "hid-lg.h" | |
7362cd22 | 33 | #include "hid-ids.h" |
32c88cbc | 34 | |
96440c8a MM |
35 | #define DFGT_REV_MAJ 0x13 |
36 | #define DFGT_REV_MIN 0x22 | |
d991938a | 37 | #define DFGT2_REV_MIN 0x26 |
96440c8a MM |
38 | #define DFP_REV_MAJ 0x11 |
39 | #define DFP_REV_MIN 0x06 | |
40 | #define FFEX_REV_MAJ 0x21 | |
41 | #define FFEX_REV_MIN 0x00 | |
42 | #define G25_REV_MAJ 0x12 | |
43 | #define G25_REV_MIN 0x22 | |
44 | #define G27_REV_MAJ 0x12 | |
45 | #define G27_REV_MIN 0x38 | |
6b5625b2 | 46 | #define G27_2_REV_MIN 0x39 |
96440c8a | 47 | |
30bb75d7 MM |
48 | #define to_hid_device(pdev) container_of(pdev, struct hid_device, dev) |
49 | ||
50 | static void hid_lg4ff_set_range_dfp(struct hid_device *hid, u16 range); | |
51 | static void hid_lg4ff_set_range_g25(struct hid_device *hid, u16 range); | |
30bb75d7 | 52 | |
30bb75d7 | 53 | struct lg4ff_device_entry { |
2b24a960 | 54 | __u32 product_id; |
30bb75d7 MM |
55 | __u16 range; |
56 | __u16 min_range; | |
57 | __u16 max_range; | |
22bcefdc SW |
58 | #ifdef CONFIG_LEDS_CLASS |
59 | __u8 led_state; | |
60 | struct led_classdev *led[5]; | |
61 | #endif | |
30bb75d7 MM |
62 | struct list_head list; |
63 | void (*set_range)(struct hid_device *hid, u16 range); | |
64 | }; | |
65 | ||
7362cd22 | 66 | static const signed short lg4ff_wheel_effects[] = { |
32c88cbc SW |
67 | FF_CONSTANT, |
68 | FF_AUTOCENTER, | |
69 | -1 | |
70 | }; | |
71 | ||
7362cd22 MM |
72 | struct lg4ff_wheel { |
73 | const __u32 product_id; | |
74 | const signed short *ff_effects; | |
75 | const __u16 min_range; | |
76 | const __u16 max_range; | |
30bb75d7 | 77 | void (*set_range)(struct hid_device *hid, u16 range); |
7362cd22 MM |
78 | }; |
79 | ||
80 | static const struct lg4ff_wheel lg4ff_devices[] = { | |
30bb75d7 MM |
81 | {USB_DEVICE_ID_LOGITECH_WHEEL, lg4ff_wheel_effects, 40, 270, NULL}, |
82 | {USB_DEVICE_ID_LOGITECH_MOMO_WHEEL, lg4ff_wheel_effects, 40, 270, NULL}, | |
83 | {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, lg4ff_wheel_effects, 40, 900, hid_lg4ff_set_range_dfp}, | |
84 | {USB_DEVICE_ID_LOGITECH_G25_WHEEL, lg4ff_wheel_effects, 40, 900, hid_lg4ff_set_range_g25}, | |
85 | {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, lg4ff_wheel_effects, 40, 900, hid_lg4ff_set_range_g25}, | |
86 | {USB_DEVICE_ID_LOGITECH_G27_WHEEL, lg4ff_wheel_effects, 40, 900, hid_lg4ff_set_range_g25}, | |
87 | {USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2, lg4ff_wheel_effects, 40, 270, NULL}, | |
88 | {USB_DEVICE_ID_LOGITECH_WII_WHEEL, lg4ff_wheel_effects, 40, 270, NULL} | |
7362cd22 MM |
89 | }; |
90 | ||
96440c8a MM |
91 | struct lg4ff_native_cmd { |
92 | const __u8 cmd_num; /* Number of commands to send */ | |
93 | const __u8 cmd[]; | |
94 | }; | |
95 | ||
96 | struct lg4ff_usb_revision { | |
97 | const __u16 rev_maj; | |
98 | const __u16 rev_min; | |
99 | const struct lg4ff_native_cmd *command; | |
100 | }; | |
101 | ||
102 | static const struct lg4ff_native_cmd native_dfp = { | |
103 | 1, | |
104 | {0xf8, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00} | |
105 | }; | |
106 | ||
107 | static const struct lg4ff_native_cmd native_dfgt = { | |
108 | 2, | |
109 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* 1st command */ | |
110 | 0xf8, 0x09, 0x03, 0x01, 0x00, 0x00, 0x00} /* 2nd command */ | |
111 | }; | |
112 | ||
113 | static const struct lg4ff_native_cmd native_g25 = { | |
114 | 1, | |
115 | {0xf8, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00} | |
116 | }; | |
117 | ||
118 | static const struct lg4ff_native_cmd native_g27 = { | |
119 | 2, | |
120 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* 1st command */ | |
121 | 0xf8, 0x09, 0x04, 0x01, 0x00, 0x00, 0x00} /* 2nd command */ | |
122 | }; | |
123 | ||
124 | static const struct lg4ff_usb_revision lg4ff_revs[] = { | |
125 | {DFGT_REV_MAJ, DFGT_REV_MIN, &native_dfgt}, /* Driving Force GT */ | |
d991938a | 126 | {DFGT_REV_MAJ, DFGT2_REV_MIN, &native_dfgt}, /* Driving Force GT v2 */ |
96440c8a MM |
127 | {DFP_REV_MAJ, DFP_REV_MIN, &native_dfp}, /* Driving Force Pro */ |
128 | {G25_REV_MAJ, G25_REV_MIN, &native_g25}, /* G25 */ | |
129 | {G27_REV_MAJ, G27_REV_MIN, &native_g27}, /* G27 */ | |
6b5625b2 | 130 | {G27_REV_MAJ, G27_2_REV_MIN, &native_g27}, /* G27 v2 */ |
96440c8a MM |
131 | }; |
132 | ||
2b24a960 MM |
133 | /* Recalculates X axis value accordingly to currently selected range */ |
134 | static __s32 lg4ff_adjust_dfp_x_axis(__s32 value, __u16 range) | |
135 | { | |
136 | __u16 max_range; | |
137 | __s32 new_value; | |
138 | ||
139 | if (range == 900) | |
140 | return value; | |
141 | else if (range == 200) | |
142 | return value; | |
143 | else if (range < 200) | |
144 | max_range = 200; | |
145 | else | |
146 | max_range = 900; | |
147 | ||
148 | new_value = 8192 + mult_frac(value - 8192, max_range, range); | |
149 | if (new_value < 0) | |
150 | return 0; | |
151 | else if (new_value > 16383) | |
152 | return 16383; | |
153 | else | |
154 | return new_value; | |
155 | } | |
156 | ||
157 | int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field, | |
158 | struct hid_usage *usage, __s32 value, struct lg_drv_data *drv_data) | |
159 | { | |
160 | struct lg4ff_device_entry *entry = drv_data->device_props; | |
161 | __s32 new_value = 0; | |
162 | ||
163 | if (!entry) { | |
164 | hid_err(hid, "Device properties not found"); | |
165 | return 0; | |
166 | } | |
167 | ||
168 | switch (entry->product_id) { | |
169 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
170 | switch (usage->code) { | |
171 | case ABS_X: | |
172 | new_value = lg4ff_adjust_dfp_x_axis(value, entry->range); | |
173 | input_event(field->hidinput->input, usage->type, usage->code, new_value); | |
174 | return 1; | |
175 | default: | |
176 | return 0; | |
177 | } | |
178 | default: | |
179 | return 0; | |
180 | } | |
181 | } | |
182 | ||
30bb75d7 | 183 | static int hid_lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *effect) |
32c88cbc SW |
184 | { |
185 | struct hid_device *hid = input_get_drvdata(dev); | |
186 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
187 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
74479ba8 | 188 | __s32 *value = report->field[0]->value; |
32c88cbc SW |
189 | int x; |
190 | ||
a80fe5d6 | 191 | #define CLAMP(x) do { if (x < 0) x = 0; else if (x > 0xff) x = 0xff; } while (0) |
32c88cbc SW |
192 | |
193 | switch (effect->type) { | |
194 | case FF_CONSTANT: | |
195 | x = effect->u.ramp.start_level + 0x80; /* 0x80 is no force */ | |
196 | CLAMP(x); | |
56930e7a SW |
197 | |
198 | if (x == 0x80) { | |
199 | /* De-activate force in slot-1*/ | |
200 | value[0] = 0x13; | |
201 | value[1] = 0x00; | |
202 | value[2] = 0x00; | |
203 | value[3] = 0x00; | |
204 | value[4] = 0x00; | |
205 | value[5] = 0x00; | |
206 | value[6] = 0x00; | |
207 | ||
208 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); | |
209 | return 0; | |
210 | } | |
211 | ||
74479ba8 MM |
212 | value[0] = 0x11; /* Slot 1 */ |
213 | value[1] = 0x08; | |
214 | value[2] = x; | |
215 | value[3] = 0x80; | |
216 | value[4] = 0x00; | |
217 | value[5] = 0x00; | |
218 | value[6] = 0x00; | |
32c88cbc | 219 | |
d8814272 | 220 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
32c88cbc SW |
221 | break; |
222 | } | |
223 | return 0; | |
224 | } | |
225 | ||
6e2de8e0 MM |
226 | /* Sends default autocentering command compatible with |
227 | * all wheels except Formula Force EX */ | |
228 | static void hid_lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitude) | |
32c88cbc SW |
229 | { |
230 | struct hid_device *hid = input_get_drvdata(dev); | |
231 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
232 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
74479ba8 | 233 | __s32 *value = report->field[0]->value; |
f8c23156 | 234 | __u32 expand_a, expand_b; |
1859762e SW |
235 | struct lg4ff_device_entry *entry; |
236 | struct lg_drv_data *drv_data; | |
237 | ||
238 | drv_data = hid_get_drvdata(hid); | |
239 | if (!drv_data) { | |
240 | hid_err(hid, "Private driver data not found!\n"); | |
241 | return; | |
242 | } | |
243 | ||
244 | entry = drv_data->device_props; | |
245 | if (!entry) { | |
246 | hid_err(hid, "Device properties not found!\n"); | |
247 | return; | |
248 | } | |
f8c23156 | 249 | |
d2c02da5 SW |
250 | /* De-activate Auto-Center */ |
251 | if (magnitude == 0) { | |
252 | value[0] = 0xf5; | |
253 | value[1] = 0x00; | |
254 | value[2] = 0x00; | |
255 | value[3] = 0x00; | |
256 | value[4] = 0x00; | |
257 | value[5] = 0x00; | |
258 | value[6] = 0x00; | |
259 | ||
260 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); | |
261 | return; | |
262 | } | |
263 | ||
f8c23156 SW |
264 | if (magnitude <= 0xaaaa) { |
265 | expand_a = 0x0c * magnitude; | |
266 | expand_b = 0x80 * magnitude; | |
267 | } else { | |
268 | expand_a = (0x0c * 0xaaaa) + 0x06 * (magnitude - 0xaaaa); | |
269 | expand_b = (0x80 * 0xaaaa) + 0xff * (magnitude - 0xaaaa); | |
270 | } | |
32c88cbc | 271 | |
1859762e SW |
272 | /* Adjust for non-MOMO wheels */ |
273 | switch (entry->product_id) { | |
274 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL: | |
275 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2: | |
276 | break; | |
277 | default: | |
278 | expand_a = expand_a >> 1; | |
279 | break; | |
280 | } | |
281 | ||
74479ba8 MM |
282 | value[0] = 0xfe; |
283 | value[1] = 0x0d; | |
f8c23156 SW |
284 | value[2] = expand_a / 0xaaaa; |
285 | value[3] = expand_a / 0xaaaa; | |
286 | value[4] = expand_b / 0xaaaa; | |
74479ba8 MM |
287 | value[5] = 0x00; |
288 | value[6] = 0x00; | |
32c88cbc | 289 | |
d8814272 | 290 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
d2c02da5 SW |
291 | |
292 | /* Activate Auto-Center */ | |
293 | value[0] = 0x14; | |
294 | value[1] = 0x00; | |
295 | value[2] = 0x00; | |
296 | value[3] = 0x00; | |
297 | value[4] = 0x00; | |
298 | value[5] = 0x00; | |
299 | value[6] = 0x00; | |
300 | ||
301 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); | |
32c88cbc SW |
302 | } |
303 | ||
6e2de8e0 MM |
304 | /* Sends autocentering command compatible with Formula Force EX */ |
305 | static void hid_lg4ff_set_autocenter_ffex(struct input_dev *dev, u16 magnitude) | |
306 | { | |
307 | struct hid_device *hid = input_get_drvdata(dev); | |
308 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
309 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
74479ba8 | 310 | __s32 *value = report->field[0]->value; |
6e2de8e0 | 311 | magnitude = magnitude * 90 / 65535; |
6e2de8e0 | 312 | |
74479ba8 MM |
313 | value[0] = 0xfe; |
314 | value[1] = 0x03; | |
315 | value[2] = magnitude >> 14; | |
316 | value[3] = magnitude >> 14; | |
317 | value[4] = magnitude; | |
318 | value[5] = 0x00; | |
319 | value[6] = 0x00; | |
6e2de8e0 | 320 | |
d8814272 | 321 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
6e2de8e0 MM |
322 | } |
323 | ||
30bb75d7 MM |
324 | /* Sends command to set range compatible with G25/G27/Driving Force GT */ |
325 | static void hid_lg4ff_set_range_g25(struct hid_device *hid, u16 range) | |
326 | { | |
327 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
328 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
74479ba8 MM |
329 | __s32 *value = report->field[0]->value; |
330 | ||
30bb75d7 MM |
331 | dbg_hid("G25/G27/DFGT: setting range to %u\n", range); |
332 | ||
74479ba8 MM |
333 | value[0] = 0xf8; |
334 | value[1] = 0x81; | |
335 | value[2] = range & 0x00ff; | |
336 | value[3] = (range & 0xff00) >> 8; | |
337 | value[4] = 0x00; | |
338 | value[5] = 0x00; | |
339 | value[6] = 0x00; | |
30bb75d7 | 340 | |
d8814272 | 341 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
342 | } |
343 | ||
344 | /* Sends commands to set range compatible with Driving Force Pro wheel */ | |
345 | static void hid_lg4ff_set_range_dfp(struct hid_device *hid, __u16 range) | |
346 | { | |
347 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
348 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
349 | int start_left, start_right, full_range; | |
74479ba8 MM |
350 | __s32 *value = report->field[0]->value; |
351 | ||
30bb75d7 MM |
352 | dbg_hid("Driving Force Pro: setting range to %u\n", range); |
353 | ||
354 | /* Prepare "coarse" limit command */ | |
74479ba8 | 355 | value[0] = 0xf8; |
a80fe5d6 | 356 | value[1] = 0x00; /* Set later */ |
74479ba8 MM |
357 | value[2] = 0x00; |
358 | value[3] = 0x00; | |
359 | value[4] = 0x00; | |
360 | value[5] = 0x00; | |
361 | value[6] = 0x00; | |
30bb75d7 MM |
362 | |
363 | if (range > 200) { | |
364 | report->field[0]->value[1] = 0x03; | |
365 | full_range = 900; | |
366 | } else { | |
367 | report->field[0]->value[1] = 0x02; | |
368 | full_range = 200; | |
369 | } | |
d8814272 | 370 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
371 | |
372 | /* Prepare "fine" limit command */ | |
74479ba8 MM |
373 | value[0] = 0x81; |
374 | value[1] = 0x0b; | |
375 | value[2] = 0x00; | |
376 | value[3] = 0x00; | |
377 | value[4] = 0x00; | |
378 | value[5] = 0x00; | |
379 | value[6] = 0x00; | |
30bb75d7 MM |
380 | |
381 | if (range == 200 || range == 900) { /* Do not apply any fine limit */ | |
d8814272 | 382 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
383 | return; |
384 | } | |
385 | ||
386 | /* Construct fine limit command */ | |
387 | start_left = (((full_range - range + 1) * 2047) / full_range); | |
388 | start_right = 0xfff - start_left; | |
389 | ||
74479ba8 MM |
390 | value[2] = start_left >> 4; |
391 | value[3] = start_right >> 4; | |
392 | value[4] = 0xff; | |
393 | value[5] = (start_right & 0xe) << 4 | (start_left & 0xe); | |
394 | value[6] = 0xff; | |
30bb75d7 | 395 | |
d8814272 | 396 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
397 | } |
398 | ||
96440c8a MM |
399 | static void hid_lg4ff_switch_native(struct hid_device *hid, const struct lg4ff_native_cmd *cmd) |
400 | { | |
401 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
402 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
403 | __u8 i, j; | |
404 | ||
405 | j = 0; | |
406 | while (j < 7*cmd->cmd_num) { | |
407 | for (i = 0; i < 7; i++) | |
408 | report->field[0]->value[i] = cmd->cmd[j++]; | |
409 | ||
d8814272 | 410 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
96440c8a MM |
411 | } |
412 | } | |
32c88cbc | 413 | |
30bb75d7 | 414 | /* Read current range and display it in terminal */ |
2f1cec32 VD |
415 | static ssize_t range_show(struct device *dev, struct device_attribute *attr, |
416 | char *buf) | |
30bb75d7 | 417 | { |
30bb75d7 | 418 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
419 | struct lg4ff_device_entry *entry; |
420 | struct lg_drv_data *drv_data; | |
30bb75d7 MM |
421 | size_t count; |
422 | ||
3b6b17b7 MM |
423 | drv_data = hid_get_drvdata(hid); |
424 | if (!drv_data) { | |
425 | hid_err(hid, "Private driver data not found!\n"); | |
426 | return 0; | |
30bb75d7 | 427 | } |
3b6b17b7 MM |
428 | |
429 | entry = drv_data->device_props; | |
430 | if (!entry) { | |
431 | hid_err(hid, "Device properties not found!\n"); | |
30bb75d7 MM |
432 | return 0; |
433 | } | |
434 | ||
435 | count = scnprintf(buf, PAGE_SIZE, "%u\n", entry->range); | |
436 | return count; | |
437 | } | |
438 | ||
439 | /* Set range to user specified value, call appropriate function | |
440 | * according to the type of the wheel */ | |
2f1cec32 VD |
441 | static ssize_t range_store(struct device *dev, struct device_attribute *attr, |
442 | const char *buf, size_t count) | |
30bb75d7 | 443 | { |
30bb75d7 | 444 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
445 | struct lg4ff_device_entry *entry; |
446 | struct lg_drv_data *drv_data; | |
30bb75d7 MM |
447 | __u16 range = simple_strtoul(buf, NULL, 10); |
448 | ||
3b6b17b7 MM |
449 | drv_data = hid_get_drvdata(hid); |
450 | if (!drv_data) { | |
451 | hid_err(hid, "Private driver data not found!\n"); | |
29ff6657 | 452 | return -EINVAL; |
30bb75d7 | 453 | } |
3b6b17b7 MM |
454 | |
455 | entry = drv_data->device_props; | |
456 | if (!entry) { | |
457 | hid_err(hid, "Device properties not found!\n"); | |
29ff6657 | 458 | return -EINVAL; |
30bb75d7 MM |
459 | } |
460 | ||
461 | if (range == 0) | |
462 | range = entry->max_range; | |
463 | ||
464 | /* Check if the wheel supports range setting | |
465 | * and that the range is within limits for the wheel */ | |
466 | if (entry->set_range != NULL && range >= entry->min_range && range <= entry->max_range) { | |
467 | entry->set_range(hid, range); | |
468 | entry->range = range; | |
469 | } | |
470 | ||
471 | return count; | |
472 | } | |
2f1cec32 | 473 | static DEVICE_ATTR_RW(range); |
30bb75d7 | 474 | |
22bcefdc SW |
475 | #ifdef CONFIG_LEDS_CLASS |
476 | static void lg4ff_set_leds(struct hid_device *hid, __u8 leds) | |
477 | { | |
478 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
479 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
74479ba8 MM |
480 | __s32 *value = report->field[0]->value; |
481 | ||
482 | value[0] = 0xf8; | |
483 | value[1] = 0x12; | |
484 | value[2] = leds; | |
485 | value[3] = 0x00; | |
486 | value[4] = 0x00; | |
487 | value[5] = 0x00; | |
488 | value[6] = 0x00; | |
d8814272 | 489 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
22bcefdc SW |
490 | } |
491 | ||
492 | static void lg4ff_led_set_brightness(struct led_classdev *led_cdev, | |
493 | enum led_brightness value) | |
494 | { | |
495 | struct device *dev = led_cdev->dev->parent; | |
496 | struct hid_device *hid = container_of(dev, struct hid_device, dev); | |
4629fd16 | 497 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
498 | struct lg4ff_device_entry *entry; |
499 | int i, state = 0; | |
500 | ||
501 | if (!drv_data) { | |
502 | hid_err(hid, "Device data not found."); | |
503 | return; | |
504 | } | |
505 | ||
506 | entry = (struct lg4ff_device_entry *)drv_data->device_props; | |
507 | ||
508 | if (!entry) { | |
509 | hid_err(hid, "Device properties not found."); | |
510 | return; | |
511 | } | |
512 | ||
513 | for (i = 0; i < 5; i++) { | |
514 | if (led_cdev != entry->led[i]) | |
515 | continue; | |
516 | state = (entry->led_state >> i) & 1; | |
517 | if (value == LED_OFF && state) { | |
518 | entry->led_state &= ~(1 << i); | |
519 | lg4ff_set_leds(hid, entry->led_state); | |
520 | } else if (value != LED_OFF && !state) { | |
521 | entry->led_state |= 1 << i; | |
522 | lg4ff_set_leds(hid, entry->led_state); | |
523 | } | |
524 | break; | |
525 | } | |
526 | } | |
527 | ||
528 | static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cdev) | |
529 | { | |
530 | struct device *dev = led_cdev->dev->parent; | |
531 | struct hid_device *hid = container_of(dev, struct hid_device, dev); | |
4629fd16 | 532 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
533 | struct lg4ff_device_entry *entry; |
534 | int i, value = 0; | |
535 | ||
536 | if (!drv_data) { | |
537 | hid_err(hid, "Device data not found."); | |
538 | return LED_OFF; | |
539 | } | |
540 | ||
541 | entry = (struct lg4ff_device_entry *)drv_data->device_props; | |
542 | ||
543 | if (!entry) { | |
544 | hid_err(hid, "Device properties not found."); | |
545 | return LED_OFF; | |
546 | } | |
547 | ||
548 | for (i = 0; i < 5; i++) | |
549 | if (led_cdev == entry->led[i]) { | |
550 | value = (entry->led_state >> i) & 1; | |
551 | break; | |
552 | } | |
553 | ||
554 | return value ? LED_FULL : LED_OFF; | |
555 | } | |
556 | #endif | |
557 | ||
32c88cbc SW |
558 | int lg4ff_init(struct hid_device *hid) |
559 | { | |
560 | struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); | |
32c88cbc | 561 | struct input_dev *dev = hidinput->input; |
30bb75d7 | 562 | struct lg4ff_device_entry *entry; |
3b6b17b7 | 563 | struct lg_drv_data *drv_data; |
30bb75d7 | 564 | struct usb_device_descriptor *udesc; |
7362cd22 | 565 | int error, i, j; |
96440c8a | 566 | __u16 bcdDevice, rev_maj, rev_min; |
32c88cbc | 567 | |
32c88cbc | 568 | /* Check that the report looks ok */ |
0fb6bd06 | 569 | if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7)) |
32c88cbc | 570 | return -1; |
30bb75d7 | 571 | |
7362cd22 MM |
572 | /* Check what wheel has been connected */ |
573 | for (i = 0; i < ARRAY_SIZE(lg4ff_devices); i++) { | |
574 | if (hid->product == lg4ff_devices[i].product_id) { | |
575 | dbg_hid("Found compatible device, product ID %04X\n", lg4ff_devices[i].product_id); | |
576 | break; | |
577 | } | |
578 | } | |
579 | ||
580 | if (i == ARRAY_SIZE(lg4ff_devices)) { | |
581 | hid_err(hid, "Device is not supported by lg4ff driver. If you think it should be, consider reporting a bug to" | |
582 | "LKML, Simon Wood <simon@mungewell.org> or Michal Maly <madcatxster@gmail.com>\n"); | |
583 | return -1; | |
584 | } | |
32c88cbc | 585 | |
96440c8a MM |
586 | /* Attempt to switch wheel to native mode when applicable */ |
587 | udesc = &(hid_to_usb_dev(hid)->descriptor); | |
588 | if (!udesc) { | |
589 | hid_err(hid, "NULL USB device descriptor\n"); | |
590 | return -1; | |
591 | } | |
592 | bcdDevice = le16_to_cpu(udesc->bcdDevice); | |
593 | rev_maj = bcdDevice >> 8; | |
594 | rev_min = bcdDevice & 0xff; | |
595 | ||
596 | if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_WHEEL) { | |
597 | dbg_hid("Generic wheel detected, can it do native?\n"); | |
598 | dbg_hid("USB revision: %2x.%02x\n", rev_maj, rev_min); | |
599 | ||
600 | for (j = 0; j < ARRAY_SIZE(lg4ff_revs); j++) { | |
601 | if (lg4ff_revs[j].rev_maj == rev_maj && lg4ff_revs[j].rev_min == rev_min) { | |
602 | hid_lg4ff_switch_native(hid, lg4ff_revs[j].command); | |
603 | hid_info(hid, "Switched to native mode\n"); | |
604 | } | |
605 | } | |
606 | } | |
607 | ||
7362cd22 MM |
608 | /* Set supported force feedback capabilities */ |
609 | for (j = 0; lg4ff_devices[i].ff_effects[j] >= 0; j++) | |
610 | set_bit(lg4ff_devices[i].ff_effects[j], dev->ffbit); | |
32c88cbc SW |
611 | |
612 | error = input_ff_create_memless(dev, NULL, hid_lg4ff_play); | |
613 | ||
614 | if (error) | |
615 | return error; | |
616 | ||
3b6b17b7 MM |
617 | /* Get private driver data */ |
618 | drv_data = hid_get_drvdata(hid); | |
619 | if (!drv_data) { | |
620 | hid_err(hid, "Cannot add device, private driver data not allocated\n"); | |
621 | return -1; | |
30bb75d7 MM |
622 | } |
623 | ||
3b6b17b7 | 624 | /* Initialize device properties */ |
8383c6bf | 625 | entry = kzalloc(sizeof(struct lg4ff_device_entry), GFP_KERNEL); |
30bb75d7 | 626 | if (!entry) { |
3b6b17b7 | 627 | hid_err(hid, "Cannot add device, insufficient memory to allocate device properties.\n"); |
30bb75d7 MM |
628 | return -ENOMEM; |
629 | } | |
3b6b17b7 MM |
630 | drv_data->device_props = entry; |
631 | ||
2b24a960 | 632 | entry->product_id = lg4ff_devices[i].product_id; |
30bb75d7 MM |
633 | entry->min_range = lg4ff_devices[i].min_range; |
634 | entry->max_range = lg4ff_devices[i].max_range; | |
635 | entry->set_range = lg4ff_devices[i].set_range; | |
30bb75d7 | 636 | |
114a55cf SW |
637 | /* Check if autocentering is available and |
638 | * set the centering force to zero by default */ | |
639 | if (test_bit(FF_AUTOCENTER, dev->ffbit)) { | |
640 | if (rev_maj == FFEX_REV_MAJ && rev_min == FFEX_REV_MIN) /* Formula Force EX expects different autocentering command */ | |
641 | dev->ff->set_autocenter = hid_lg4ff_set_autocenter_ffex; | |
642 | else | |
643 | dev->ff->set_autocenter = hid_lg4ff_set_autocenter_default; | |
644 | ||
645 | dev->ff->set_autocenter(dev, 0); | |
646 | } | |
647 | ||
30bb75d7 MM |
648 | /* Create sysfs interface */ |
649 | error = device_create_file(&hid->dev, &dev_attr_range); | |
650 | if (error) | |
651 | return error; | |
652 | dbg_hid("sysfs interface created\n"); | |
653 | ||
654 | /* Set the maximum range to start with */ | |
655 | entry->range = entry->max_range; | |
656 | if (entry->set_range != NULL) | |
657 | entry->set_range(hid, entry->range); | |
658 | ||
22bcefdc SW |
659 | #ifdef CONFIG_LEDS_CLASS |
660 | /* register led subsystem - G27 only */ | |
661 | entry->led_state = 0; | |
662 | for (j = 0; j < 5; j++) | |
663 | entry->led[j] = NULL; | |
664 | ||
665 | if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G27_WHEEL) { | |
666 | struct led_classdev *led; | |
667 | size_t name_sz; | |
668 | char *name; | |
669 | ||
670 | lg4ff_set_leds(hid, 0); | |
671 | ||
672 | name_sz = strlen(dev_name(&hid->dev)) + 8; | |
673 | ||
674 | for (j = 0; j < 5; j++) { | |
675 | led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL); | |
676 | if (!led) { | |
677 | hid_err(hid, "can't allocate memory for LED %d\n", j); | |
678 | goto err; | |
679 | } | |
680 | ||
681 | name = (void *)(&led[1]); | |
682 | snprintf(name, name_sz, "%s::RPM%d", dev_name(&hid->dev), j+1); | |
683 | led->name = name; | |
684 | led->brightness = 0; | |
685 | led->max_brightness = 1; | |
686 | led->brightness_get = lg4ff_led_get_brightness; | |
687 | led->brightness_set = lg4ff_led_set_brightness; | |
688 | ||
689 | entry->led[j] = led; | |
690 | error = led_classdev_register(&hid->dev, led); | |
691 | ||
692 | if (error) { | |
693 | hid_err(hid, "failed to register LED %d. Aborting.\n", j); | |
694 | err: | |
695 | /* Deregister LEDs (if any) */ | |
696 | for (j = 0; j < 5; j++) { | |
697 | led = entry->led[j]; | |
698 | entry->led[j] = NULL; | |
699 | if (!led) | |
700 | continue; | |
701 | led_classdev_unregister(led); | |
702 | kfree(led); | |
703 | } | |
704 | goto out; /* Let the driver continue without LEDs */ | |
705 | } | |
706 | } | |
707 | } | |
22bcefdc | 708 | out: |
c6e6dc87 | 709 | #endif |
64013800 | 710 | hid_info(hid, "Force feedback support for Logitech Gaming Wheels\n"); |
32c88cbc SW |
711 | return 0; |
712 | } | |
713 | ||
2b24a960 MM |
714 | |
715 | ||
30bb75d7 MM |
716 | int lg4ff_deinit(struct hid_device *hid) |
717 | { | |
30bb75d7 | 718 | struct lg4ff_device_entry *entry; |
3b6b17b7 MM |
719 | struct lg_drv_data *drv_data; |
720 | ||
6a2e176b MM |
721 | device_remove_file(&hid->dev, &dev_attr_range); |
722 | ||
3b6b17b7 MM |
723 | drv_data = hid_get_drvdata(hid); |
724 | if (!drv_data) { | |
725 | hid_err(hid, "Error while deinitializing device, no private driver data.\n"); | |
726 | return -1; | |
30bb75d7 | 727 | } |
3b6b17b7 MM |
728 | entry = drv_data->device_props; |
729 | if (!entry) { | |
730 | hid_err(hid, "Error while deinitializing device, no device properties data.\n"); | |
30bb75d7 MM |
731 | return -1; |
732 | } | |
22bcefdc SW |
733 | |
734 | #ifdef CONFIG_LEDS_CLASS | |
735 | { | |
736 | int j; | |
737 | struct led_classdev *led; | |
738 | ||
739 | /* Deregister LEDs (if any) */ | |
740 | for (j = 0; j < 5; j++) { | |
741 | ||
742 | led = entry->led[j]; | |
743 | entry->led[j] = NULL; | |
744 | if (!led) | |
745 | continue; | |
746 | led_classdev_unregister(led); | |
747 | kfree(led); | |
748 | } | |
749 | } | |
750 | #endif | |
751 | ||
3b6b17b7 MM |
752 | /* Deallocate memory */ |
753 | kfree(entry); | |
30bb75d7 | 754 | |
30bb75d7 MM |
755 | dbg_hid("Device successfully unregistered\n"); |
756 | return 0; | |
757 | } |