xref: /linux/drivers/hid/hid-lg.c (revision b6ebbac51bedf9e98e837688bc838f400196da5e)
1 /*
2  *  HID driver for some logitech "special" devices
3  *
4  *  Copyright (c) 1999 Andreas Gal
5  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
7  *  Copyright (c) 2006-2007 Jiri Kosina
8  *  Copyright (c) 2008 Jiri Slaby
9  *  Copyright (c) 2010 Hendrik Iben
10  */
11 
12 /*
13  * This program is free software; you can redistribute it and/or modify it
14  * under the terms of the GNU General Public License as published by the Free
15  * Software Foundation; either version 2 of the License, or (at your option)
16  * any later version.
17  */
18 
19 #include <linux/device.h>
20 #include <linux/hid.h>
21 #include <linux/module.h>
22 #include <linux/random.h>
23 #include <linux/sched.h>
24 #include <linux/usb.h>
25 #include <linux/wait.h>
26 
27 #include "usbhid/usbhid.h"
28 #include "hid-ids.h"
29 #include "hid-lg.h"
30 #include "hid-lg4ff.h"
31 
32 #define LG_RDESC		0x001
33 #define LG_BAD_RELATIVE_KEYS	0x002
34 #define LG_DUPLICATE_USAGES	0x004
35 #define LG_EXPANDED_KEYMAP	0x010
36 #define LG_IGNORE_DOUBLED_WHEEL	0x020
37 #define LG_WIRELESS		0x040
38 #define LG_INVERT_HWHEEL	0x080
39 #define LG_NOGET		0x100
40 #define LG_FF			0x200
41 #define LG_FF2			0x400
42 #define LG_RDESC_REL_ABS	0x800
43 #define LG_FF3			0x1000
44 #define LG_FF4			0x2000
45 
46 /* Size of the original descriptors of the Driving Force (and Pro) wheels */
47 #define DF_RDESC_ORIG_SIZE	130
48 #define DFP_RDESC_ORIG_SIZE	97
49 #define FV_RDESC_ORIG_SIZE	130
50 #define MOMO_RDESC_ORIG_SIZE	87
51 #define MOMO2_RDESC_ORIG_SIZE	87
52 
53 /* Fixed report descriptors for Logitech Driving Force (and Pro)
54  * wheel controllers
55  *
56  * The original descriptors hide the separate throttle and brake axes in
57  * a custom vendor usage page, providing only a combined value as
58  * GenericDesktop.Y.
59  * These descriptors remove the combined Y axis and instead report
60  * separate throttle (Y) and brake (RZ).
61  */
62 static __u8 df_rdesc_fixed[] = {
63 0x05, 0x01,         /*  Usage Page (Desktop),                   */
64 0x09, 0x04,         /*  Usage (Joystick),                       */
65 0xA1, 0x01,         /*  Collection (Application),               */
66 0xA1, 0x02,         /*      Collection (Logical),               */
67 0x95, 0x01,         /*          Report Count (1),               */
68 0x75, 0x0A,         /*          Report Size (10),               */
69 0x14,               /*          Logical Minimum (0),            */
70 0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),         */
71 0x34,               /*          Physical Minimum (0),           */
72 0x46, 0xFF, 0x03,   /*          Physical Maximum (1023),        */
73 0x09, 0x30,         /*          Usage (X),                      */
74 0x81, 0x02,         /*          Input (Variable),               */
75 0x95, 0x0C,         /*          Report Count (12),              */
76 0x75, 0x01,         /*          Report Size (1),                */
77 0x25, 0x01,         /*          Logical Maximum (1),            */
78 0x45, 0x01,         /*          Physical Maximum (1),           */
79 0x05, 0x09,         /*          Usage (Buttons),                */
80 0x19, 0x01,         /*          Usage Minimum (1),              */
81 0x29, 0x0c,         /*          Usage Maximum (12),             */
82 0x81, 0x02,         /*          Input (Variable),               */
83 0x95, 0x02,         /*          Report Count (2),               */
84 0x06, 0x00, 0xFF,   /*          Usage Page (Vendor: 65280),     */
85 0x09, 0x01,         /*          Usage (?: 1),                   */
86 0x81, 0x02,         /*          Input (Variable),               */
87 0x05, 0x01,         /*          Usage Page (Desktop),           */
88 0x26, 0xFF, 0x00,   /*          Logical Maximum (255),          */
89 0x46, 0xFF, 0x00,   /*          Physical Maximum (255),         */
90 0x95, 0x01,         /*          Report Count (1),               */
91 0x75, 0x08,         /*          Report Size (8),                */
92 0x81, 0x02,         /*          Input (Variable),               */
93 0x25, 0x07,         /*          Logical Maximum (7),            */
94 0x46, 0x3B, 0x01,   /*          Physical Maximum (315),         */
95 0x75, 0x04,         /*          Report Size (4),                */
96 0x65, 0x14,         /*          Unit (Degrees),                 */
97 0x09, 0x39,         /*          Usage (Hat Switch),             */
98 0x81, 0x42,         /*          Input (Variable, Null State),   */
99 0x75, 0x01,         /*          Report Size (1),                */
100 0x95, 0x04,         /*          Report Count (4),               */
101 0x65, 0x00,         /*          Unit (none),                    */
102 0x06, 0x00, 0xFF,   /*          Usage Page (Vendor: 65280),     */
103 0x09, 0x01,         /*          Usage (?: 1),                   */
104 0x25, 0x01,         /*          Logical Maximum (1),            */
105 0x45, 0x01,         /*          Physical Maximum (1),           */
106 0x81, 0x02,         /*          Input (Variable),               */
107 0x05, 0x01,         /*          Usage Page (Desktop),           */
108 0x95, 0x01,         /*          Report Count (1),               */
109 0x75, 0x08,         /*          Report Size (8),                */
110 0x26, 0xFF, 0x00,   /*          Logical Maximum (255),          */
111 0x46, 0xFF, 0x00,   /*          Physical Maximum (255),         */
112 0x09, 0x31,         /*          Usage (Y),                      */
113 0x81, 0x02,         /*          Input (Variable),               */
114 0x09, 0x35,         /*          Usage (Rz),                     */
115 0x81, 0x02,         /*          Input (Variable),               */
116 0xC0,               /*      End Collection,                     */
117 0xA1, 0x02,         /*      Collection (Logical),               */
118 0x26, 0xFF, 0x00,   /*          Logical Maximum (255),          */
119 0x46, 0xFF, 0x00,   /*          Physical Maximum (255),         */
120 0x95, 0x07,         /*          Report Count (7),               */
121 0x75, 0x08,         /*          Report Size (8),                */
122 0x09, 0x03,         /*          Usage (?: 3),                   */
123 0x91, 0x02,         /*          Output (Variable),              */
124 0xC0,               /*      End Collection,                     */
125 0xC0                /*  End Collection                          */
126 };
127 
128 static __u8 dfp_rdesc_fixed[] = {
129 0x05, 0x01,         /*  Usage Page (Desktop),                   */
130 0x09, 0x04,         /*  Usage (Joystick),                       */
131 0xA1, 0x01,         /*  Collection (Application),               */
132 0xA1, 0x02,         /*      Collection (Logical),               */
133 0x95, 0x01,         /*          Report Count (1),               */
134 0x75, 0x0E,         /*          Report Size (14),               */
135 0x14,               /*          Logical Minimum (0),            */
136 0x26, 0xFF, 0x3F,   /*          Logical Maximum (16383),        */
137 0x34,               /*          Physical Minimum (0),           */
138 0x46, 0xFF, 0x3F,   /*          Physical Maximum (16383),       */
139 0x09, 0x30,         /*          Usage (X),                      */
140 0x81, 0x02,         /*          Input (Variable),               */
141 0x95, 0x0E,         /*          Report Count (14),              */
142 0x75, 0x01,         /*          Report Size (1),                */
143 0x25, 0x01,         /*          Logical Maximum (1),            */
144 0x45, 0x01,         /*          Physical Maximum (1),           */
145 0x05, 0x09,         /*          Usage Page (Button),            */
146 0x19, 0x01,         /*          Usage Minimum (01h),            */
147 0x29, 0x0E,         /*          Usage Maximum (0Eh),            */
148 0x81, 0x02,         /*          Input (Variable),               */
149 0x05, 0x01,         /*          Usage Page (Desktop),           */
150 0x95, 0x01,         /*          Report Count (1),               */
151 0x75, 0x04,         /*          Report Size (4),                */
152 0x25, 0x07,         /*          Logical Maximum (7),            */
153 0x46, 0x3B, 0x01,   /*          Physical Maximum (315),         */
154 0x65, 0x14,         /*          Unit (Degrees),                 */
155 0x09, 0x39,         /*          Usage (Hat Switch),             */
156 0x81, 0x42,         /*          Input (Variable, Nullstate),    */
157 0x65, 0x00,         /*          Unit,                           */
158 0x26, 0xFF, 0x00,   /*          Logical Maximum (255),          */
159 0x46, 0xFF, 0x00,   /*          Physical Maximum (255),         */
160 0x75, 0x08,         /*          Report Size (8),                */
161 0x81, 0x01,         /*          Input (Constant),               */
162 0x09, 0x31,         /*          Usage (Y),                      */
163 0x81, 0x02,         /*          Input (Variable),               */
164 0x09, 0x35,         /*          Usage (Rz),                     */
165 0x81, 0x02,         /*          Input (Variable),               */
166 0x81, 0x01,         /*          Input (Constant),               */
167 0xC0,               /*      End Collection,                     */
168 0xA1, 0x02,         /*      Collection (Logical),               */
169 0x09, 0x02,         /*          Usage (02h),                    */
170 0x95, 0x07,         /*          Report Count (7),               */
171 0x91, 0x02,         /*          Output (Variable),              */
172 0xC0,               /*      End Collection,                     */
173 0xC0                /*  End Collection                          */
174 };
175 
176 static __u8 fv_rdesc_fixed[] = {
177 0x05, 0x01,         /*  Usage Page (Desktop),                   */
178 0x09, 0x04,         /*  Usage (Joystick),                       */
179 0xA1, 0x01,         /*  Collection (Application),               */
180 0xA1, 0x02,         /*      Collection (Logical),               */
181 0x95, 0x01,         /*          Report Count (1),               */
182 0x75, 0x0A,         /*          Report Size (10),               */
183 0x15, 0x00,         /*          Logical Minimum (0),            */
184 0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),         */
185 0x35, 0x00,         /*          Physical Minimum (0),           */
186 0x46, 0xFF, 0x03,   /*          Physical Maximum (1023),        */
187 0x09, 0x30,         /*          Usage (X),                      */
188 0x81, 0x02,         /*          Input (Variable),               */
189 0x95, 0x0C,         /*          Report Count (12),              */
190 0x75, 0x01,         /*          Report Size (1),                */
191 0x25, 0x01,         /*          Logical Maximum (1),            */
192 0x45, 0x01,         /*          Physical Maximum (1),           */
193 0x05, 0x09,         /*          Usage Page (Button),            */
194 0x19, 0x01,         /*          Usage Minimum (01h),            */
195 0x29, 0x0C,         /*          Usage Maximum (0Ch),            */
196 0x81, 0x02,         /*          Input (Variable),               */
197 0x95, 0x02,         /*          Report Count (2),               */
198 0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),             */
199 0x09, 0x01,         /*          Usage (01h),                    */
200 0x81, 0x02,         /*          Input (Variable),               */
201 0x09, 0x02,         /*          Usage (02h),                    */
202 0x26, 0xFF, 0x00,   /*          Logical Maximum (255),          */
203 0x46, 0xFF, 0x00,   /*          Physical Maximum (255),         */
204 0x95, 0x01,         /*          Report Count (1),               */
205 0x75, 0x08,         /*          Report Size (8),                */
206 0x81, 0x02,         /*          Input (Variable),               */
207 0x05, 0x01,         /*          Usage Page (Desktop),           */
208 0x25, 0x07,         /*          Logical Maximum (7),            */
209 0x46, 0x3B, 0x01,   /*          Physical Maximum (315),         */
210 0x75, 0x04,         /*          Report Size (4),                */
211 0x65, 0x14,         /*          Unit (Degrees),                 */
212 0x09, 0x39,         /*          Usage (Hat Switch),             */
213 0x81, 0x42,         /*          Input (Variable, Null State),   */
214 0x75, 0x01,         /*          Report Size (1),                */
215 0x95, 0x04,         /*          Report Count (4),               */
216 0x65, 0x00,         /*          Unit,                           */
217 0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),             */
218 0x09, 0x01,         /*          Usage (01h),                    */
219 0x25, 0x01,         /*          Logical Maximum (1),            */
220 0x45, 0x01,         /*          Physical Maximum (1),           */
221 0x81, 0x02,         /*          Input (Variable),               */
222 0x05, 0x01,         /*          Usage Page (Desktop),           */
223 0x95, 0x01,         /*          Report Count (1),               */
224 0x75, 0x08,         /*          Report Size (8),                */
225 0x26, 0xFF, 0x00,   /*          Logical Maximum (255),          */
226 0x46, 0xFF, 0x00,   /*          Physical Maximum (255),         */
227 0x09, 0x31,         /*          Usage (Y),                      */
228 0x81, 0x02,         /*          Input (Variable),               */
229 0x09, 0x32,         /*          Usage (Z),                      */
230 0x81, 0x02,         /*          Input (Variable),               */
231 0xC0,               /*      End Collection,                     */
232 0xA1, 0x02,         /*      Collection (Logical),               */
233 0x26, 0xFF, 0x00,   /*          Logical Maximum (255),          */
234 0x46, 0xFF, 0x00,   /*          Physical Maximum (255),         */
235 0x95, 0x07,         /*          Report Count (7),               */
236 0x75, 0x08,         /*          Report Size (8),                */
237 0x09, 0x03,         /*          Usage (03h),                    */
238 0x91, 0x02,         /*          Output (Variable),              */
239 0xC0,               /*      End Collection,                     */
240 0xC0                /*  End Collection                          */
241 };
242 
243 static __u8 momo_rdesc_fixed[] = {
244 0x05, 0x01,         /*  Usage Page (Desktop),               */
245 0x09, 0x04,         /*  Usage (Joystick),                   */
246 0xA1, 0x01,         /*  Collection (Application),           */
247 0xA1, 0x02,         /*      Collection (Logical),           */
248 0x95, 0x01,         /*          Report Count (1),           */
249 0x75, 0x0A,         /*          Report Size (10),           */
250 0x15, 0x00,         /*          Logical Minimum (0),        */
251 0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
252 0x35, 0x00,         /*          Physical Minimum (0),       */
253 0x46, 0xFF, 0x03,   /*          Physical Maximum (1023),    */
254 0x09, 0x30,         /*          Usage (X),                  */
255 0x81, 0x02,         /*          Input (Variable),           */
256 0x95, 0x08,         /*          Report Count (8),           */
257 0x75, 0x01,         /*          Report Size (1),            */
258 0x25, 0x01,         /*          Logical Maximum (1),        */
259 0x45, 0x01,         /*          Physical Maximum (1),       */
260 0x05, 0x09,         /*          Usage Page (Button),        */
261 0x19, 0x01,         /*          Usage Minimum (01h),        */
262 0x29, 0x08,         /*          Usage Maximum (08h),        */
263 0x81, 0x02,         /*          Input (Variable),           */
264 0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
265 0x75, 0x0E,         /*          Report Size (14),           */
266 0x95, 0x01,         /*          Report Count (1),           */
267 0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */
268 0x46, 0xFF, 0x00,   /*          Physical Maximum (255),     */
269 0x09, 0x00,         /*          Usage (00h),                */
270 0x81, 0x02,         /*          Input (Variable),           */
271 0x05, 0x01,         /*          Usage Page (Desktop),       */
272 0x75, 0x08,         /*          Report Size (8),            */
273 0x09, 0x31,         /*          Usage (Y),                  */
274 0x81, 0x02,         /*          Input (Variable),           */
275 0x09, 0x32,         /*          Usage (Z),                  */
276 0x81, 0x02,         /*          Input (Variable),           */
277 0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
278 0x09, 0x01,         /*          Usage (01h),                */
279 0x81, 0x02,         /*          Input (Variable),           */
280 0xC0,               /*      End Collection,                 */
281 0xA1, 0x02,         /*      Collection (Logical),           */
282 0x09, 0x02,         /*          Usage (02h),                */
283 0x95, 0x07,         /*          Report Count (7),           */
284 0x91, 0x02,         /*          Output (Variable),          */
285 0xC0,               /*      End Collection,                 */
286 0xC0                /*  End Collection                      */
287 };
288 
289 static __u8 momo2_rdesc_fixed[] = {
290 0x05, 0x01,         /*  Usage Page (Desktop),               */
291 0x09, 0x04,         /*  Usage (Joystick),                   */
292 0xA1, 0x01,         /*  Collection (Application),           */
293 0xA1, 0x02,         /*      Collection (Logical),           */
294 0x95, 0x01,         /*          Report Count (1),           */
295 0x75, 0x0A,         /*          Report Size (10),           */
296 0x15, 0x00,         /*          Logical Minimum (0),        */
297 0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
298 0x35, 0x00,         /*          Physical Minimum (0),       */
299 0x46, 0xFF, 0x03,   /*          Physical Maximum (1023),    */
300 0x09, 0x30,         /*          Usage (X),                  */
301 0x81, 0x02,         /*          Input (Variable),           */
302 0x95, 0x0A,         /*          Report Count (10),          */
303 0x75, 0x01,         /*          Report Size (1),            */
304 0x25, 0x01,         /*          Logical Maximum (1),        */
305 0x45, 0x01,         /*          Physical Maximum (1),       */
306 0x05, 0x09,         /*          Usage Page (Button),        */
307 0x19, 0x01,         /*          Usage Minimum (01h),        */
308 0x29, 0x0A,         /*          Usage Maximum (0Ah),        */
309 0x81, 0x02,         /*          Input (Variable),           */
310 0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
311 0x09, 0x00,         /*          Usage (00h),                */
312 0x95, 0x04,         /*          Report Count (4),           */
313 0x81, 0x02,         /*          Input (Variable),           */
314 0x95, 0x01,         /*          Report Count (1),           */
315 0x75, 0x08,         /*          Report Size (8),            */
316 0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */
317 0x46, 0xFF, 0x00,   /*          Physical Maximum (255),     */
318 0x09, 0x01,         /*          Usage (01h),                */
319 0x81, 0x02,         /*          Input (Variable),           */
320 0x05, 0x01,         /*          Usage Page (Desktop),       */
321 0x09, 0x31,         /*          Usage (Y),                  */
322 0x81, 0x02,         /*          Input (Variable),           */
323 0x09, 0x32,         /*          Usage (Z),                  */
324 0x81, 0x02,         /*          Input (Variable),           */
325 0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
326 0x09, 0x00,         /*          Usage (00h),                */
327 0x81, 0x02,         /*          Input (Variable),           */
328 0xC0,               /*      End Collection,                 */
329 0xA1, 0x02,         /*      Collection (Logical),           */
330 0x09, 0x02,         /*          Usage (02h),                */
331 0x95, 0x07,         /*          Report Count (7),           */
332 0x91, 0x02,         /*          Output (Variable),          */
333 0xC0,               /*      End Collection,                 */
334 0xC0                /*  End Collection                      */
335 };
336 
337 /*
338  * Certain Logitech keyboards send in report #3 keys which are far
339  * above the logical maximum described in descriptor. This extends
340  * the original value of 0x28c of logical maximum to 0x104d
341  */
342 static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
343 		unsigned int *rsize)
344 {
345 	struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
346 	struct usb_device_descriptor *udesc;
347 	__u16 bcdDevice, rev_maj, rev_min;
348 
349 	if ((drv_data->quirks & LG_RDESC) && *rsize >= 91 && rdesc[83] == 0x26 &&
350 			rdesc[84] == 0x8c && rdesc[85] == 0x02) {
351 		hid_info(hdev,
352 			 "fixing up Logitech keyboard report descriptor\n");
353 		rdesc[84] = rdesc[89] = 0x4d;
354 		rdesc[85] = rdesc[90] = 0x10;
355 	}
356 	if ((drv_data->quirks & LG_RDESC_REL_ABS) && *rsize >= 51 &&
357 			rdesc[32] == 0x81 && rdesc[33] == 0x06 &&
358 			rdesc[49] == 0x81 && rdesc[50] == 0x06) {
359 		hid_info(hdev,
360 			 "fixing up rel/abs in Logitech report descriptor\n");
361 		rdesc[33] = rdesc[50] = 0x02;
362 	}
363 
364 	switch (hdev->product) {
365 
366 	/* Several wheels report as this id when operating in emulation mode. */
367 	case USB_DEVICE_ID_LOGITECH_WHEEL:
368 		udesc = &(hid_to_usb_dev(hdev)->descriptor);
369 		if (!udesc) {
370 			hid_err(hdev, "NULL USB device descriptor\n");
371 			break;
372 		}
373 		bcdDevice = le16_to_cpu(udesc->bcdDevice);
374 		rev_maj = bcdDevice >> 8;
375 		rev_min = bcdDevice & 0xff;
376 
377 		/* Update the report descriptor for only the Driving Force wheel */
378 		if (rev_maj == 1 && rev_min == 2 &&
379 				*rsize == DF_RDESC_ORIG_SIZE) {
380 			hid_info(hdev,
381 				"fixing up Logitech Driving Force report descriptor\n");
382 			rdesc = df_rdesc_fixed;
383 			*rsize = sizeof(df_rdesc_fixed);
384 		}
385 		break;
386 
387 	case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:
388 		if (*rsize == MOMO_RDESC_ORIG_SIZE) {
389 			hid_info(hdev,
390 				"fixing up Logitech Momo Force (Red) report descriptor\n");
391 			rdesc = momo_rdesc_fixed;
392 			*rsize = sizeof(momo_rdesc_fixed);
393 		}
394 		break;
395 
396 	case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
397 		if (*rsize == MOMO2_RDESC_ORIG_SIZE) {
398 			hid_info(hdev,
399 				"fixing up Logitech Momo Racing Force (Black) report descriptor\n");
400 			rdesc = momo2_rdesc_fixed;
401 			*rsize = sizeof(momo2_rdesc_fixed);
402 		}
403 		break;
404 
405 	case USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL:
406 		if (*rsize == FV_RDESC_ORIG_SIZE) {
407 			hid_info(hdev,
408 				"fixing up Logitech Formula Vibration report descriptor\n");
409 			rdesc = fv_rdesc_fixed;
410 			*rsize = sizeof(fv_rdesc_fixed);
411 		}
412 		break;
413 
414 	case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
415 		if (*rsize == DFP_RDESC_ORIG_SIZE) {
416 			hid_info(hdev,
417 				"fixing up Logitech Driving Force Pro report descriptor\n");
418 			rdesc = dfp_rdesc_fixed;
419 			*rsize = sizeof(dfp_rdesc_fixed);
420 		}
421 		break;
422 
423 	case USB_DEVICE_ID_LOGITECH_WII_WHEEL:
424 		if (*rsize >= 101 && rdesc[41] == 0x95 && rdesc[42] == 0x0B &&
425 				rdesc[47] == 0x05 && rdesc[48] == 0x09) {
426 			hid_info(hdev, "fixing up Logitech Speed Force Wireless report descriptor\n");
427 			rdesc[41] = 0x05;
428 			rdesc[42] = 0x09;
429 			rdesc[47] = 0x95;
430 			rdesc[48] = 0x0B;
431 		}
432 		break;
433 	}
434 
435 	return rdesc;
436 }
437 
438 #define lg_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
439 		EV_KEY, (c))
440 
441 static int lg_ultrax_remote_mapping(struct hid_input *hi,
442 		struct hid_usage *usage, unsigned long **bit, int *max)
443 {
444 	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
445 		return 0;
446 
447 	set_bit(EV_REP, hi->input->evbit);
448 	switch (usage->hid & HID_USAGE) {
449 	/* Reported on Logitech Ultra X Media Remote */
450 	case 0x004: lg_map_key_clear(KEY_AGAIN);	break;
451 	case 0x00d: lg_map_key_clear(KEY_HOME);		break;
452 	case 0x024: lg_map_key_clear(KEY_SHUFFLE);	break;
453 	case 0x025: lg_map_key_clear(KEY_TV);		break;
454 	case 0x026: lg_map_key_clear(KEY_MENU);		break;
455 	case 0x031: lg_map_key_clear(KEY_AUDIO);	break;
456 	case 0x032: lg_map_key_clear(KEY_TEXT);		break;
457 	case 0x033: lg_map_key_clear(KEY_LAST);		break;
458 	case 0x047: lg_map_key_clear(KEY_MP3);		break;
459 	case 0x048: lg_map_key_clear(KEY_DVD);		break;
460 	case 0x049: lg_map_key_clear(KEY_MEDIA);	break;
461 	case 0x04a: lg_map_key_clear(KEY_VIDEO);	break;
462 	case 0x04b: lg_map_key_clear(KEY_ANGLE);	break;
463 	case 0x04c: lg_map_key_clear(KEY_LANGUAGE);	break;
464 	case 0x04d: lg_map_key_clear(KEY_SUBTITLE);	break;
465 	case 0x051: lg_map_key_clear(KEY_RED);		break;
466 	case 0x052: lg_map_key_clear(KEY_CLOSE);	break;
467 
468 	default:
469 		return 0;
470 	}
471 	return 1;
472 }
473 
474 static int lg_dinovo_mapping(struct hid_input *hi, struct hid_usage *usage,
475 		unsigned long **bit, int *max)
476 {
477 	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
478 		return 0;
479 
480 	switch (usage->hid & HID_USAGE) {
481 
482 	case 0x00d: lg_map_key_clear(KEY_MEDIA);	break;
483 	default:
484 		return 0;
485 
486 	}
487 	return 1;
488 }
489 
490 static int lg_wireless_mapping(struct hid_input *hi, struct hid_usage *usage,
491 		unsigned long **bit, int *max)
492 {
493 	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
494 		return 0;
495 
496 	switch (usage->hid & HID_USAGE) {
497 	case 0x1001: lg_map_key_clear(KEY_MESSENGER);		break;
498 	case 0x1003: lg_map_key_clear(KEY_SOUND);		break;
499 	case 0x1004: lg_map_key_clear(KEY_VIDEO);		break;
500 	case 0x1005: lg_map_key_clear(KEY_AUDIO);		break;
501 	case 0x100a: lg_map_key_clear(KEY_DOCUMENTS);		break;
502 	/* The following two entries are Playlist 1 and 2 on the MX3200 */
503 	case 0x100f: lg_map_key_clear(KEY_FN_1);		break;
504 	case 0x1010: lg_map_key_clear(KEY_FN_2);		break;
505 	case 0x1011: lg_map_key_clear(KEY_PREVIOUSSONG);	break;
506 	case 0x1012: lg_map_key_clear(KEY_NEXTSONG);		break;
507 	case 0x1013: lg_map_key_clear(KEY_CAMERA);		break;
508 	case 0x1014: lg_map_key_clear(KEY_MESSENGER);		break;
509 	case 0x1015: lg_map_key_clear(KEY_RECORD);		break;
510 	case 0x1016: lg_map_key_clear(KEY_PLAYER);		break;
511 	case 0x1017: lg_map_key_clear(KEY_EJECTCD);		break;
512 	case 0x1018: lg_map_key_clear(KEY_MEDIA);		break;
513 	case 0x1019: lg_map_key_clear(KEY_PROG1);		break;
514 	case 0x101a: lg_map_key_clear(KEY_PROG2);		break;
515 	case 0x101b: lg_map_key_clear(KEY_PROG3);		break;
516 	case 0x101c: lg_map_key_clear(KEY_CYCLEWINDOWS);	break;
517 	case 0x101f: lg_map_key_clear(KEY_ZOOMIN);		break;
518 	case 0x1020: lg_map_key_clear(KEY_ZOOMOUT);		break;
519 	case 0x1021: lg_map_key_clear(KEY_ZOOMRESET);		break;
520 	case 0x1023: lg_map_key_clear(KEY_CLOSE);		break;
521 	case 0x1027: lg_map_key_clear(KEY_MENU);		break;
522 	/* this one is marked as 'Rotate' */
523 	case 0x1028: lg_map_key_clear(KEY_ANGLE);		break;
524 	case 0x1029: lg_map_key_clear(KEY_SHUFFLE);		break;
525 	case 0x102a: lg_map_key_clear(KEY_BACK);		break;
526 	case 0x102b: lg_map_key_clear(KEY_CYCLEWINDOWS);	break;
527 	case 0x102d: lg_map_key_clear(KEY_WWW);			break;
528 	/* The following two are 'Start/answer call' and 'End/reject call'
529 	   on the MX3200 */
530 	case 0x1031: lg_map_key_clear(KEY_OK);			break;
531 	case 0x1032: lg_map_key_clear(KEY_CANCEL);		break;
532 	case 0x1041: lg_map_key_clear(KEY_BATTERY);		break;
533 	case 0x1042: lg_map_key_clear(KEY_WORDPROCESSOR);	break;
534 	case 0x1043: lg_map_key_clear(KEY_SPREADSHEET);		break;
535 	case 0x1044: lg_map_key_clear(KEY_PRESENTATION);	break;
536 	case 0x1045: lg_map_key_clear(KEY_UNDO);		break;
537 	case 0x1046: lg_map_key_clear(KEY_REDO);		break;
538 	case 0x1047: lg_map_key_clear(KEY_PRINT);		break;
539 	case 0x1048: lg_map_key_clear(KEY_SAVE);		break;
540 	case 0x1049: lg_map_key_clear(KEY_PROG1);		break;
541 	case 0x104a: lg_map_key_clear(KEY_PROG2);		break;
542 	case 0x104b: lg_map_key_clear(KEY_PROG3);		break;
543 	case 0x104c: lg_map_key_clear(KEY_PROG4);		break;
544 
545 	default:
546 		return 0;
547 	}
548 	return 1;
549 }
550 
551 static int lg_input_mapping(struct hid_device *hdev, struct hid_input *hi,
552 		struct hid_field *field, struct hid_usage *usage,
553 		unsigned long **bit, int *max)
554 {
555 	/* extended mapping for certain Logitech hardware (Logitech cordless
556 	   desktop LX500) */
557 	static const u8 e_keymap[] = {
558 		  0,216,  0,213,175,156,  0,  0,  0,  0,
559 		144,  0,  0,  0,  0,  0,  0,  0,  0,212,
560 		174,167,152,161,112,  0,  0,  0,154,  0,
561 		  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
562 		  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
563 		  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
564 		  0,  0,  0,  0,  0,183,184,185,186,187,
565 		188,189,190,191,192,193,194,  0,  0,  0
566 	};
567 	struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
568 	unsigned int hid = usage->hid;
569 
570 	if (hdev->product == USB_DEVICE_ID_LOGITECH_RECEIVER &&
571 			lg_ultrax_remote_mapping(hi, usage, bit, max))
572 		return 1;
573 
574 	if (hdev->product == USB_DEVICE_ID_DINOVO_MINI &&
575 			lg_dinovo_mapping(hi, usage, bit, max))
576 		return 1;
577 
578 	if ((drv_data->quirks & LG_WIRELESS) && lg_wireless_mapping(hi, usage, bit, max))
579 		return 1;
580 
581 	if ((hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
582 		return 0;
583 
584 	hid &= HID_USAGE;
585 
586 	/* Special handling for Logitech Cordless Desktop */
587 	if (field->application == HID_GD_MOUSE) {
588 		if ((drv_data->quirks & LG_IGNORE_DOUBLED_WHEEL) &&
589 				(hid == 7 || hid == 8))
590 			return -1;
591 	} else {
592 		if ((drv_data->quirks & LG_EXPANDED_KEYMAP) &&
593 				hid < ARRAY_SIZE(e_keymap) &&
594 				e_keymap[hid] != 0) {
595 			hid_map_usage(hi, usage, bit, max, EV_KEY,
596 					e_keymap[hid]);
597 			return 1;
598 		}
599 	}
600 
601 	return 0;
602 }
603 
604 static int lg_input_mapped(struct hid_device *hdev, struct hid_input *hi,
605 		struct hid_field *field, struct hid_usage *usage,
606 		unsigned long **bit, int *max)
607 {
608 	struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
609 
610 	if ((drv_data->quirks & LG_BAD_RELATIVE_KEYS) && usage->type == EV_KEY &&
611 			(field->flags & HID_MAIN_ITEM_RELATIVE))
612 		field->flags &= ~HID_MAIN_ITEM_RELATIVE;
613 
614 	if ((drv_data->quirks & LG_DUPLICATE_USAGES) && (usage->type == EV_KEY ||
615 			 usage->type == EV_REL || usage->type == EV_ABS))
616 		clear_bit(usage->code, *bit);
617 
618 	/* Ensure that Logitech wheels are not given a default fuzz/flat value */
619 	if (usage->type == EV_ABS && (usage->code == ABS_X ||
620 			usage->code == ABS_Y || usage->code == ABS_Z ||
621 			usage->code == ABS_RZ)) {
622 		switch (hdev->product) {
623 		case USB_DEVICE_ID_LOGITECH_G29_WHEEL:
624 		case USB_DEVICE_ID_LOGITECH_WHEEL:
625 		case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:
626 		case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
627 		case USB_DEVICE_ID_LOGITECH_G25_WHEEL:
628 		case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL:
629 		case USB_DEVICE_ID_LOGITECH_G27_WHEEL:
630 		case USB_DEVICE_ID_LOGITECH_WII_WHEEL:
631 		case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
632 		case USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL:
633 			field->application = HID_GD_MULTIAXIS;
634 			break;
635 		default:
636 			break;
637 		}
638 	}
639 
640 	return 0;
641 }
642 
643 static int lg_event(struct hid_device *hdev, struct hid_field *field,
644 		struct hid_usage *usage, __s32 value)
645 {
646 	struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
647 
648 	if ((drv_data->quirks & LG_INVERT_HWHEEL) && usage->code == REL_HWHEEL) {
649 		input_event(field->hidinput->input, usage->type, usage->code,
650 				-value);
651 		return 1;
652 	}
653 	if (drv_data->quirks & LG_FF4) {
654 		return lg4ff_adjust_input_event(hdev, field, usage, value, drv_data);
655 	}
656 
657 	return 0;
658 }
659 
660 static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
661 {
662 	struct usb_interface *iface = to_usb_interface(hdev->dev.parent);
663 	__u8 iface_num = iface->cur_altsetting->desc.bInterfaceNumber;
664 	unsigned int connect_mask = HID_CONNECT_DEFAULT;
665 	struct lg_drv_data *drv_data;
666 	int ret;
667 
668 	/* G29 only work with the 1st interface */
669 	if ((hdev->product == USB_DEVICE_ID_LOGITECH_G29_WHEEL) &&
670 	    (iface_num != 0)) {
671 		dbg_hid("%s: ignoring ifnum %d\n", __func__, iface_num);
672 		return -ENODEV;
673 	}
674 
675 	drv_data = kzalloc(sizeof(struct lg_drv_data), GFP_KERNEL);
676 	if (!drv_data) {
677 		hid_err(hdev, "Insufficient memory, cannot allocate driver data\n");
678 		return -ENOMEM;
679 	}
680 	drv_data->quirks = id->driver_data;
681 
682 	hid_set_drvdata(hdev, (void *)drv_data);
683 
684 	if (drv_data->quirks & LG_NOGET)
685 		hdev->quirks |= HID_QUIRK_NOGET;
686 
687 	ret = hid_parse(hdev);
688 	if (ret) {
689 		hid_err(hdev, "parse failed\n");
690 		goto err_free;
691 	}
692 
693 	if (drv_data->quirks & (LG_FF | LG_FF2 | LG_FF3 | LG_FF4))
694 		connect_mask &= ~HID_CONNECT_FF;
695 
696 	ret = hid_hw_start(hdev, connect_mask);
697 	if (ret) {
698 		hid_err(hdev, "hw start failed\n");
699 		goto err_free;
700 	}
701 
702 	/* Setup wireless link with Logitech Wii wheel */
703 	if (hdev->product == USB_DEVICE_ID_LOGITECH_WII_WHEEL) {
704 		unsigned char buf[] = { 0x00, 0xAF,  0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
705 
706 		ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
707 					HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
708 
709 		if (ret >= 0) {
710 			/* insert a little delay of 10 jiffies ~ 40ms */
711 			wait_queue_head_t wait;
712 			init_waitqueue_head (&wait);
713 			wait_event_interruptible_timeout(wait, 0,
714 							 msecs_to_jiffies(40));
715 
716 			/* Select random Address */
717 			buf[1] = 0xB2;
718 			get_random_bytes(&buf[2], 2);
719 
720 			ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
721 					HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
722 		}
723 	}
724 
725 	if (drv_data->quirks & LG_FF)
726 		ret = lgff_init(hdev);
727 	else if (drv_data->quirks & LG_FF2)
728 		ret = lg2ff_init(hdev);
729 	else if (drv_data->quirks & LG_FF3)
730 		ret = lg3ff_init(hdev);
731 	else if (drv_data->quirks & LG_FF4)
732 		ret = lg4ff_init(hdev);
733 
734 	if (ret)
735 		goto err_free;
736 
737 	return 0;
738 err_free:
739 	kfree(drv_data);
740 	return ret;
741 }
742 
743 static void lg_remove(struct hid_device *hdev)
744 {
745 	struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
746 	if (drv_data->quirks & LG_FF4)
747 		lg4ff_deinit(hdev);
748 	else
749 		hid_hw_stop(hdev);
750 	kfree(drv_data);
751 }
752 
753 static const struct hid_device_id lg_devices[] = {
754 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER),
755 		.driver_data = LG_RDESC | LG_WIRELESS },
756 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER),
757 		.driver_data = LG_RDESC | LG_WIRELESS },
758 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2),
759 		.driver_data = LG_RDESC | LG_WIRELESS },
760 
761 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER),
762 		.driver_data = LG_BAD_RELATIVE_KEYS },
763 
764 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP),
765 		.driver_data = LG_DUPLICATE_USAGES },
766 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE),
767 		.driver_data = LG_DUPLICATE_USAGES },
768 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI),
769 		.driver_data = LG_DUPLICATE_USAGES },
770 
771 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD),
772 		.driver_data = LG_IGNORE_DOUBLED_WHEEL | LG_EXPANDED_KEYMAP },
773 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500),
774 		.driver_data = LG_IGNORE_DOUBLED_WHEEL | LG_EXPANDED_KEYMAP },
775 
776 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D),
777 		.driver_data = LG_NOGET },
778 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DUAL_ACTION),
779 		.driver_data = LG_NOGET },
780 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL),
781 		.driver_data = LG_NOGET | LG_FF4 },
782 
783 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD),
784 		.driver_data = LG_FF2 },
785 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD),
786 		.driver_data = LG_FF },
787 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2),
788 		.driver_data = LG_FF },
789 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G29_WHEEL),
790 		.driver_data = LG_FF4 },
791 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D),
792 		.driver_data = LG_FF },
793 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO),
794 		.driver_data = LG_FF },
795 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL),
796 		.driver_data = LG_NOGET | LG_FF4 },
797 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2),
798 		.driver_data = LG_FF4 },
799 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL),
800 		.driver_data = LG_FF2 },
801 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL),
802 		.driver_data = LG_FF4 },
803 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL),
804 		.driver_data = LG_FF4 },
805 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL),
806 		.driver_data = LG_FF4 },
807 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL),
808 		.driver_data = LG_NOGET | LG_FF4 },
809 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL),
810 		.driver_data = LG_FF4 },
811 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG),
812 		.driver_data = LG_FF },
813 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),
814 		.driver_data = LG_FF2 },
815 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940),
816 		.driver_data = LG_FF3 },
817 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR),
818 		.driver_data = LG_RDESC_REL_ABS },
819 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER),
820 		.driver_data = LG_RDESC_REL_ABS },
821 	{ }
822 };
823 
824 MODULE_DEVICE_TABLE(hid, lg_devices);
825 
826 static struct hid_driver lg_driver = {
827 	.name = "logitech",
828 	.id_table = lg_devices,
829 	.report_fixup = lg_report_fixup,
830 	.input_mapping = lg_input_mapping,
831 	.input_mapped = lg_input_mapped,
832 	.event = lg_event,
833 	.probe = lg_probe,
834 	.remove = lg_remove,
835 };
836 module_hid_driver(lg_driver);
837 
838 #ifdef CONFIG_LOGIWHEELS_FF
839 int lg4ff_no_autoswitch = 0;
840 module_param_named(lg4ff_no_autoswitch, lg4ff_no_autoswitch, int, S_IRUGO);
841 MODULE_PARM_DESC(lg4ff_no_autoswitch, "Do not switch multimode wheels to their native mode automatically");
842 #endif
843 
844 MODULE_LICENSE("GPL");
845