1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * HID driver for Logitech receivers
4 *
5 * Copyright (c) 2011 Logitech
6 */
7
8
9
10 #include <linux/device.h>
11 #include <linux/hid.h>
12 #include <linux/module.h>
13 #include <linux/kfifo.h>
14 #include <linux/delay.h>
15 #include <linux/usb.h> /* For to_usb_interface for kvm extra intf check */
16 #include <linux/unaligned.h>
17 #include "hid-ids.h"
18
19 #define DJ_MAX_PAIRED_DEVICES 7
20 #define DJ_MAX_NUMBER_NOTIFS 8
21 #define DJ_RECEIVER_INDEX 0
22 #define DJ_DEVICE_INDEX_MIN 1
23 #define DJ_DEVICE_INDEX_MAX 7
24
25 #define DJREPORT_SHORT_LENGTH 15
26 #define DJREPORT_LONG_LENGTH 32
27
28 #define REPORT_ID_DJ_SHORT 0x20
29 #define REPORT_ID_DJ_LONG 0x21
30
31 #define REPORT_ID_HIDPP_SHORT 0x10
32 #define REPORT_ID_HIDPP_LONG 0x11
33 #define REPORT_ID_HIDPP_VERY_LONG 0x12
34
35 #define HIDPP_REPORT_SHORT_LENGTH 7
36 #define HIDPP_REPORT_LONG_LENGTH 20
37
38 #define HIDPP_RECEIVER_INDEX 0xff
39
40 #define REPORT_TYPE_RFREPORT_FIRST 0x01
41 #define REPORT_TYPE_RFREPORT_LAST 0x1F
42
43 /* Command Switch to DJ mode */
44 #define REPORT_TYPE_CMD_SWITCH 0x80
45 #define CMD_SWITCH_PARAM_DEVBITFIELD 0x00
46 #define CMD_SWITCH_PARAM_TIMEOUT_SECONDS 0x01
47 #define TIMEOUT_NO_KEEPALIVE 0x00
48
49 /* Command to Get the list of Paired devices */
50 #define REPORT_TYPE_CMD_GET_PAIRED_DEVICES 0x81
51
52 /* Device Paired Notification */
53 #define REPORT_TYPE_NOTIF_DEVICE_PAIRED 0x41
54 #define SPFUNCTION_MORE_NOTIF_EXPECTED 0x01
55 #define SPFUNCTION_DEVICE_LIST_EMPTY 0x02
56 #define DEVICE_PAIRED_PARAM_SPFUNCTION 0x00
57 #define DEVICE_PAIRED_PARAM_EQUAD_ID_LSB 0x01
58 #define DEVICE_PAIRED_PARAM_EQUAD_ID_MSB 0x02
59 #define DEVICE_PAIRED_RF_REPORT_TYPE 0x03
60
61 /* Device Un-Paired Notification */
62 #define REPORT_TYPE_NOTIF_DEVICE_UNPAIRED 0x40
63
64 /* Connection Status Notification */
65 #define REPORT_TYPE_NOTIF_CONNECTION_STATUS 0x42
66 #define CONNECTION_STATUS_PARAM_STATUS 0x00
67 #define STATUS_LINKLOSS 0x01
68
69 /* Error Notification */
70 #define REPORT_TYPE_NOTIF_ERROR 0x7F
71 #define NOTIF_ERROR_PARAM_ETYPE 0x00
72 #define ETYPE_KEEPALIVE_TIMEOUT 0x01
73
74 /* supported DJ HID && RF report types */
75 #define REPORT_TYPE_KEYBOARD 0x01
76 #define REPORT_TYPE_MOUSE 0x02
77 #define REPORT_TYPE_CONSUMER_CONTROL 0x03
78 #define REPORT_TYPE_SYSTEM_CONTROL 0x04
79 #define REPORT_TYPE_MEDIA_CENTER 0x08
80 #define REPORT_TYPE_LEDS 0x0E
81
82 /* RF Report types bitfield */
83 #define STD_KEYBOARD BIT(1)
84 #define STD_MOUSE BIT(2)
85 #define MULTIMEDIA BIT(3)
86 #define POWER_KEYS BIT(4)
87 #define KBD_MOUSE BIT(5)
88 #define MEDIA_CENTER BIT(8)
89 #define KBD_LEDS BIT(14)
90 /* Fake (bitnr > NUMBER_OF_HID_REPORTS) bit to track HID++ capability */
91 #define HIDPP BIT_ULL(63)
92
93 /* HID++ Device Connected Notification */
94 #define REPORT_TYPE_NOTIF_DEVICE_CONNECTED 0x41
95 #define HIDPP_PARAM_PROTO_TYPE 0x00
96 #define HIDPP_PARAM_DEVICE_INFO 0x01
97 #define HIDPP_PARAM_EQUAD_LSB 0x02
98 #define HIDPP_PARAM_EQUAD_MSB 0x03
99 #define HIDPP_PARAM_27MHZ_DEVID 0x03
100 #define HIDPP_DEVICE_TYPE_MASK GENMASK(3, 0)
101 #define HIDPP_LINK_STATUS_MASK BIT(6)
102 #define HIDPP_MANUFACTURER_MASK BIT(7)
103 #define HIDPP_27MHZ_SECURE_MASK BIT(7)
104
105 #define HIDPP_DEVICE_TYPE_KEYBOARD 1
106 #define HIDPP_DEVICE_TYPE_MOUSE 2
107
108 #define HIDPP_SET_REGISTER 0x80
109 #define HIDPP_GET_LONG_REGISTER 0x83
110 #define HIDPP_REG_CONNECTION_STATE 0x02
111 #define HIDPP_REG_PAIRING_INFORMATION 0xB5
112 #define HIDPP_PAIRING_INFORMATION 0x20
113 #define HIDPP_FAKE_DEVICE_ARRIVAL 0x02
114
115 enum recvr_type {
116 recvr_type_dj,
117 recvr_type_hidpp,
118 recvr_type_gaming_hidpp,
119 recvr_type_gaming_hidpp_ls_1_3,
120 recvr_type_mouse_only,
121 recvr_type_27mhz,
122 recvr_type_bluetooth,
123 recvr_type_dinovo,
124 };
125
126 struct dj_report {
127 u8 report_id;
128 u8 device_index;
129 u8 report_type;
130 u8 report_params[DJREPORT_SHORT_LENGTH - 3];
131 };
132
133 struct hidpp_event {
134 u8 report_id;
135 u8 device_index;
136 u8 sub_id;
137 u8 params[HIDPP_REPORT_LONG_LENGTH - 3U];
138 } __packed;
139
140 struct dj_receiver_dev {
141 struct hid_device *mouse;
142 struct hid_device *keyboard;
143 struct hid_device *hidpp;
144 struct dj_device *paired_dj_devices[DJ_MAX_PAIRED_DEVICES +
145 DJ_DEVICE_INDEX_MIN];
146 struct list_head list;
147 struct kref kref;
148 struct work_struct work;
149 struct kfifo notif_fifo;
150 unsigned long last_query; /* in jiffies */
151 bool ready;
152 bool dj_mode;
153 enum recvr_type type;
154 unsigned int unnumbered_application;
155 spinlock_t lock;
156 };
157
158 struct dj_device {
159 struct hid_device *hdev;
160 struct dj_receiver_dev *dj_receiver_dev;
161 u64 reports_supported;
162 u8 device_index;
163 };
164
165 #define WORKITEM_TYPE_EMPTY 0
166 #define WORKITEM_TYPE_PAIRED 1
167 #define WORKITEM_TYPE_UNPAIRED 2
168 #define WORKITEM_TYPE_UNKNOWN 255
169
170 struct dj_workitem {
171 u8 type; /* WORKITEM_TYPE_* */
172 u8 device_index;
173 u8 device_type;
174 u8 quad_id_msb;
175 u8 quad_id_lsb;
176 u64 reports_supported;
177 };
178
179 /* Keyboard descriptor (1) */
180 static const char kbd_descriptor[] = {
181 0x05, 0x01, /* USAGE_PAGE (generic Desktop) */
182 0x09, 0x06, /* USAGE (Keyboard) */
183 0xA1, 0x01, /* COLLECTION (Application) */
184 0x85, 0x01, /* REPORT_ID (1) */
185 0x95, 0x08, /* REPORT_COUNT (8) */
186 0x75, 0x01, /* REPORT_SIZE (1) */
187 0x15, 0x00, /* LOGICAL_MINIMUM (0) */
188 0x25, 0x01, /* LOGICAL_MAXIMUM (1) */
189 0x05, 0x07, /* USAGE_PAGE (Keyboard) */
190 0x19, 0xE0, /* USAGE_MINIMUM (Left Control) */
191 0x29, 0xE7, /* USAGE_MAXIMUM (Right GUI) */
192 0x81, 0x02, /* INPUT (Data,Var,Abs) */
193 0x95, 0x06, /* REPORT_COUNT (6) */
194 0x75, 0x08, /* REPORT_SIZE (8) */
195 0x15, 0x00, /* LOGICAL_MINIMUM (0) */
196 0x26, 0xFF, 0x00, /* LOGICAL_MAXIMUM (255) */
197 0x05, 0x07, /* USAGE_PAGE (Keyboard) */
198 0x19, 0x00, /* USAGE_MINIMUM (no event) */
199 0x2A, 0xFF, 0x00, /* USAGE_MAXIMUM (reserved) */
200 0x81, 0x00, /* INPUT (Data,Ary,Abs) */
201 0x85, 0x0e, /* REPORT_ID (14) */
202 0x05, 0x08, /* USAGE PAGE (LED page) */
203 0x95, 0x05, /* REPORT COUNT (5) */
204 0x75, 0x01, /* REPORT SIZE (1) */
205 0x15, 0x00, /* LOGICAL_MINIMUM (0) */
206 0x25, 0x01, /* LOGICAL_MAXIMUM (1) */
207 0x19, 0x01, /* USAGE MINIMUM (1) */
208 0x29, 0x05, /* USAGE MAXIMUM (5) */
209 0x91, 0x02, /* OUTPUT (Data, Variable, Absolute) */
210 0x95, 0x01, /* REPORT COUNT (1) */
211 0x75, 0x03, /* REPORT SIZE (3) */
212 0x91, 0x01, /* OUTPUT (Constant) */
213 0xC0
214 };
215
216 /* Gaming Keyboard descriptor (1) */
217 static const char kbd_lightspeed_1_3_descriptor[] = {
218 0x05, 0x01, /* Usage Page (Generic Desktop) */
219 0x09, 0x06, /* Usage (Keyboard) */
220 0xA1, 0x01, /* Collection (Application) */
221 0x85, 0x01, /* Report ID (1) */
222 0x05, 0x07, /* Usage Page (Kbrd/Keypad) */
223 0x19, 0xE0, /* Usage Minimum (0xE0) */
224 0x29, 0xE7, /* Usage Maximum (0xE7) */
225 0x15, 0x00, /* Logical Minimum (0) */
226 0x25, 0x01, /* Logical Maximum (1) */
227 0x75, 0x01, /* Report Size (1) */
228 0x95, 0x08, /* Report Count (8) */
229 0x81, 0x02, /* Input (Data,Var) */
230 0x95, 0x70, /* Report Count (112) */
231 0x19, 0x04, /* Usage Minimum (0x04) */
232 0x29, 0x73, /* Usage Maximum (0x73) */
233 0x81, 0x02, /* Input (Data,Var,Abs) */
234 0x95, 0x05, /* Report Count (5) */
235 0x19, 0x87, /* Usage Minimum (0x87) */
236 0x29, 0x8B, /* Usage Maximum (0x8B) */
237 0x81, 0x02, /* Input (Data,Var,Abs) */
238 0x95, 0x03, /* Report Count (3) */
239 0x19, 0x90, /* Usage Minimum (0x90) */
240 0x29, 0x92, /* Usage Maximum (0x92) */
241 0x81, 0x02, /* Input (Data,Var,Abs) */
242 0x95, 0x05, /* Report Count (5) */
243 0x85, 0x0E, /* Report ID (14) */
244 0x05, 0x08, /* Usage Page (LEDs) */
245 0x19, 0x01, /* Usage Minimum (Num Lock) */
246 0x29, 0x05, /* Usage Maximum (Kana) */
247 0x91, 0x02, /* Output (Data,Var,Abs) */
248 0x95, 0x01, /* Report Count (1) */
249 0x75, 0x03, /* Report Size (3) */
250 0x91, 0x03, /* Output (Const,Var,Abs) */
251 0xC0, /* End Collection */
252 };
253
254 /* Mouse descriptor (2) */
255 static const char mse_descriptor[] = {
256 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
257 0x09, 0x02, /* USAGE (Mouse) */
258 0xA1, 0x01, /* COLLECTION (Application) */
259 0x85, 0x02, /* REPORT_ID = 2 */
260 0x09, 0x01, /* USAGE (pointer) */
261 0xA1, 0x00, /* COLLECTION (physical) */
262 0x05, 0x09, /* USAGE_PAGE (buttons) */
263 0x19, 0x01, /* USAGE_MIN (1) */
264 0x29, 0x10, /* USAGE_MAX (16) */
265 0x15, 0x00, /* LOGICAL_MIN (0) */
266 0x25, 0x01, /* LOGICAL_MAX (1) */
267 0x95, 0x10, /* REPORT_COUNT (16) */
268 0x75, 0x01, /* REPORT_SIZE (1) */
269 0x81, 0x02, /* INPUT (data var abs) */
270 0x05, 0x01, /* USAGE_PAGE (generic desktop) */
271 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */
272 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */
273 0x75, 0x0C, /* REPORT_SIZE (12) */
274 0x95, 0x02, /* REPORT_COUNT (2) */
275 0x09, 0x30, /* USAGE (X) */
276 0x09, 0x31, /* USAGE (Y) */
277 0x81, 0x06, /* INPUT */
278 0x15, 0x81, /* LOGICAL_MIN (-127) */
279 0x25, 0x7F, /* LOGICAL_MAX (127) */
280 0x75, 0x08, /* REPORT_SIZE (8) */
281 0x95, 0x01, /* REPORT_COUNT (1) */
282 0x09, 0x38, /* USAGE (wheel) */
283 0x81, 0x06, /* INPUT */
284 0x05, 0x0C, /* USAGE_PAGE(consumer) */
285 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
286 0x95, 0x01, /* REPORT_COUNT (1) */
287 0x81, 0x06, /* INPUT */
288 0xC0, /* END_COLLECTION */
289 0xC0, /* END_COLLECTION */
290 };
291
292 /* Mouse descriptor (2) for 27 MHz receiver, only 8 buttons */
293 static const char mse_27mhz_descriptor[] = {
294 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
295 0x09, 0x02, /* USAGE (Mouse) */
296 0xA1, 0x01, /* COLLECTION (Application) */
297 0x85, 0x02, /* REPORT_ID = 2 */
298 0x09, 0x01, /* USAGE (pointer) */
299 0xA1, 0x00, /* COLLECTION (physical) */
300 0x05, 0x09, /* USAGE_PAGE (buttons) */
301 0x19, 0x01, /* USAGE_MIN (1) */
302 0x29, 0x08, /* USAGE_MAX (8) */
303 0x15, 0x00, /* LOGICAL_MIN (0) */
304 0x25, 0x01, /* LOGICAL_MAX (1) */
305 0x95, 0x08, /* REPORT_COUNT (8) */
306 0x75, 0x01, /* REPORT_SIZE (1) */
307 0x81, 0x02, /* INPUT (data var abs) */
308 0x05, 0x01, /* USAGE_PAGE (generic desktop) */
309 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */
310 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */
311 0x75, 0x0C, /* REPORT_SIZE (12) */
312 0x95, 0x02, /* REPORT_COUNT (2) */
313 0x09, 0x30, /* USAGE (X) */
314 0x09, 0x31, /* USAGE (Y) */
315 0x81, 0x06, /* INPUT */
316 0x15, 0x81, /* LOGICAL_MIN (-127) */
317 0x25, 0x7F, /* LOGICAL_MAX (127) */
318 0x75, 0x08, /* REPORT_SIZE (8) */
319 0x95, 0x01, /* REPORT_COUNT (1) */
320 0x09, 0x38, /* USAGE (wheel) */
321 0x81, 0x06, /* INPUT */
322 0x05, 0x0C, /* USAGE_PAGE(consumer) */
323 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
324 0x95, 0x01, /* REPORT_COUNT (1) */
325 0x81, 0x06, /* INPUT */
326 0xC0, /* END_COLLECTION */
327 0xC0, /* END_COLLECTION */
328 };
329
330 /* Mouse descriptor (2) for Bluetooth receiver, low-res hwheel, 12 buttons */
331 static const char mse_bluetooth_descriptor[] = {
332 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
333 0x09, 0x02, /* USAGE (Mouse) */
334 0xA1, 0x01, /* COLLECTION (Application) */
335 0x85, 0x02, /* REPORT_ID = 2 */
336 0x09, 0x01, /* USAGE (pointer) */
337 0xA1, 0x00, /* COLLECTION (physical) */
338 0x05, 0x09, /* USAGE_PAGE (buttons) */
339 0x19, 0x01, /* USAGE_MIN (1) */
340 0x29, 0x08, /* USAGE_MAX (8) */
341 0x15, 0x00, /* LOGICAL_MIN (0) */
342 0x25, 0x01, /* LOGICAL_MAX (1) */
343 0x95, 0x08, /* REPORT_COUNT (8) */
344 0x75, 0x01, /* REPORT_SIZE (1) */
345 0x81, 0x02, /* INPUT (data var abs) */
346 0x05, 0x01, /* USAGE_PAGE (generic desktop) */
347 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */
348 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */
349 0x75, 0x0C, /* REPORT_SIZE (12) */
350 0x95, 0x02, /* REPORT_COUNT (2) */
351 0x09, 0x30, /* USAGE (X) */
352 0x09, 0x31, /* USAGE (Y) */
353 0x81, 0x06, /* INPUT */
354 0x15, 0x81, /* LOGICAL_MIN (-127) */
355 0x25, 0x7F, /* LOGICAL_MAX (127) */
356 0x75, 0x08, /* REPORT_SIZE (8) */
357 0x95, 0x01, /* REPORT_COUNT (1) */
358 0x09, 0x38, /* USAGE (wheel) */
359 0x81, 0x06, /* INPUT */
360 0x05, 0x0C, /* USAGE_PAGE(consumer) */
361 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
362 0x15, 0xF9, /* LOGICAL_MIN (-7) */
363 0x25, 0x07, /* LOGICAL_MAX (7) */
364 0x75, 0x04, /* REPORT_SIZE (4) */
365 0x95, 0x01, /* REPORT_COUNT (1) */
366 0x81, 0x06, /* INPUT */
367 0x05, 0x09, /* USAGE_PAGE (buttons) */
368 0x19, 0x09, /* USAGE_MIN (9) */
369 0x29, 0x0C, /* USAGE_MAX (12) */
370 0x15, 0x00, /* LOGICAL_MIN (0) */
371 0x25, 0x01, /* LOGICAL_MAX (1) */
372 0x75, 0x01, /* REPORT_SIZE (1) */
373 0x95, 0x04, /* REPORT_COUNT (4) */
374 0x81, 0x02, /* INPUT (Data,Var,Abs) */
375 0xC0, /* END_COLLECTION */
376 0xC0, /* END_COLLECTION */
377 };
378
379 /* Mouse descriptor (5) for Bluetooth receiver, normal-res hwheel, 8 buttons */
380 static const char mse5_bluetooth_descriptor[] = {
381 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
382 0x09, 0x02, /* Usage (Mouse) */
383 0xa1, 0x01, /* Collection (Application) */
384 0x85, 0x05, /* Report ID (5) */
385 0x09, 0x01, /* Usage (Pointer) */
386 0xa1, 0x00, /* Collection (Physical) */
387 0x05, 0x09, /* Usage Page (Button) */
388 0x19, 0x01, /* Usage Minimum (1) */
389 0x29, 0x08, /* Usage Maximum (8) */
390 0x15, 0x00, /* Logical Minimum (0) */
391 0x25, 0x01, /* Logical Maximum (1) */
392 0x95, 0x08, /* Report Count (8) */
393 0x75, 0x01, /* Report Size (1) */
394 0x81, 0x02, /* Input (Data,Var,Abs) */
395 0x05, 0x01, /* Usage Page (Generic Desktop) */
396 0x16, 0x01, 0xf8, /* Logical Minimum (-2047) */
397 0x26, 0xff, 0x07, /* Logical Maximum (2047) */
398 0x75, 0x0c, /* Report Size (12) */
399 0x95, 0x02, /* Report Count (2) */
400 0x09, 0x30, /* Usage (X) */
401 0x09, 0x31, /* Usage (Y) */
402 0x81, 0x06, /* Input (Data,Var,Rel) */
403 0x15, 0x81, /* Logical Minimum (-127) */
404 0x25, 0x7f, /* Logical Maximum (127) */
405 0x75, 0x08, /* Report Size (8) */
406 0x95, 0x01, /* Report Count (1) */
407 0x09, 0x38, /* Usage (Wheel) */
408 0x81, 0x06, /* Input (Data,Var,Rel) */
409 0x05, 0x0c, /* Usage Page (Consumer Devices) */
410 0x0a, 0x38, 0x02, /* Usage (AC Pan) */
411 0x15, 0x81, /* Logical Minimum (-127) */
412 0x25, 0x7f, /* Logical Maximum (127) */
413 0x75, 0x08, /* Report Size (8) */
414 0x95, 0x01, /* Report Count (1) */
415 0x81, 0x06, /* Input (Data,Var,Rel) */
416 0xc0, /* End Collection */
417 0xc0, /* End Collection */
418 };
419
420 /* Gaming Mouse descriptor (2) */
421 static const char mse_high_res_descriptor[] = {
422 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
423 0x09, 0x02, /* USAGE (Mouse) */
424 0xA1, 0x01, /* COLLECTION (Application) */
425 0x85, 0x02, /* REPORT_ID = 2 */
426 0x09, 0x01, /* USAGE (pointer) */
427 0xA1, 0x00, /* COLLECTION (physical) */
428 0x05, 0x09, /* USAGE_PAGE (buttons) */
429 0x19, 0x01, /* USAGE_MIN (1) */
430 0x29, 0x10, /* USAGE_MAX (16) */
431 0x15, 0x00, /* LOGICAL_MIN (0) */
432 0x25, 0x01, /* LOGICAL_MAX (1) */
433 0x95, 0x10, /* REPORT_COUNT (16) */
434 0x75, 0x01, /* REPORT_SIZE (1) */
435 0x81, 0x02, /* INPUT (data var abs) */
436 0x05, 0x01, /* USAGE_PAGE (generic desktop) */
437 0x16, 0x01, 0x80, /* LOGICAL_MIN (-32767) */
438 0x26, 0xFF, 0x7F, /* LOGICAL_MAX (32767) */
439 0x75, 0x10, /* REPORT_SIZE (16) */
440 0x95, 0x02, /* REPORT_COUNT (2) */
441 0x09, 0x30, /* USAGE (X) */
442 0x09, 0x31, /* USAGE (Y) */
443 0x81, 0x06, /* INPUT */
444 0x15, 0x81, /* LOGICAL_MIN (-127) */
445 0x25, 0x7F, /* LOGICAL_MAX (127) */
446 0x75, 0x08, /* REPORT_SIZE (8) */
447 0x95, 0x01, /* REPORT_COUNT (1) */
448 0x09, 0x38, /* USAGE (wheel) */
449 0x81, 0x06, /* INPUT */
450 0x05, 0x0C, /* USAGE_PAGE(consumer) */
451 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
452 0x95, 0x01, /* REPORT_COUNT (1) */
453 0x81, 0x06, /* INPUT */
454 0xC0, /* END_COLLECTION */
455 0xC0, /* END_COLLECTION */
456 };
457
458 /* Gaming Mouse descriptor with vendor data (2) */
459 static const char mse_high_res_ls_1_3_descriptor[] = {
460 0x05, 0x01, /* Usage Page (Generic Desktop) */
461 0x09, 0x02, /* Usage (Mouse) */
462 0xA1, 0x01, /* Collection (Application) */
463 0x85, 0x02, /* Report ID (2) */
464 0x09, 0x01, /* Usage (Pointer) */
465 0xA1, 0x00, /* Collection (Physical) */
466 0x95, 0x10, /* Report Count (16) */
467 0x75, 0x01, /* Report Size (1) */
468 0x15, 0x00, /* Logical Minimum (0) */
469 0x25, 0x01, /* Logical Maximum (1) */
470 0x05, 0x09, /* Usage Page (Button) */
471 0x19, 0x01, /* Usage Minimum (0x01) */
472 0x29, 0x10, /* Usage Maximum (0x10) */
473 0x81, 0x02, /* Input (Data,Var,Abs) */
474 0x95, 0x02, /* Report Count (2) */
475 0x75, 0x10, /* Report Size (16) */
476 0x16, 0x01, 0x80, /* Logical Minimum (-32767) */
477 0x26, 0xFF, 0x7F, /* Logical Maximum (32767) */
478 0x05, 0x01, /* Usage Page (Generic Desktop) */
479 0x09, 0x30, /* Usage (X) */
480 0x09, 0x31, /* Usage (Y) */
481 0x81, 0x06, /* Input (Data,Var,Rel) */
482 0x95, 0x01, /* Report Count (1) */
483 0x75, 0x08, /* Report Size (8) */
484 0x15, 0x81, /* Logical Minimum (-127) */
485 0x25, 0x7F, /* Logical Maximum (127) */
486 0x09, 0x38, /* Usage (Wheel) */
487 0x81, 0x06, /* Input (Data,Var,Rel) */
488 0x95, 0x01, /* Report Count (1) */
489 0x05, 0x0C, /* Usage Page (Consumer) */
490 0x0A, 0x38, 0x02, /* Usage (AC Pan) */
491 0x81, 0x06, /* Input (Data,Var,Rel) */
492 0xC0, /* End Collection */
493 0x06, 0x00, 0xFF, /* Usage Page (Vendor Defined 0xFF00) */
494 0x09, 0xF1, /* Usage (0xF1) */
495 0x75, 0x08, /* Report Size (8) */
496 0x95, 0x05, /* Report Count (5) */
497 0x15, 0x00, /* Logical Minimum (0) */
498 0x26, 0xFF, 0x00, /* Logical Maximum (255) */
499 0x81, 0x00, /* Input (Data,Array,Abs) */
500 0xC0, /* End Collection */
501 };
502
503 /* Consumer Control descriptor (3) */
504 static const char consumer_descriptor[] = {
505 0x05, 0x0C, /* USAGE_PAGE (Consumer Devices) */
506 0x09, 0x01, /* USAGE (Consumer Control) */
507 0xA1, 0x01, /* COLLECTION (Application) */
508 0x85, 0x03, /* REPORT_ID = 3 */
509 0x75, 0x10, /* REPORT_SIZE (16) */
510 0x95, 0x02, /* REPORT_COUNT (2) */
511 0x15, 0x01, /* LOGICAL_MIN (1) */
512 0x26, 0xFF, 0x02, /* LOGICAL_MAX (767) */
513 0x19, 0x01, /* USAGE_MIN (1) */
514 0x2A, 0xFF, 0x02, /* USAGE_MAX (767) */
515 0x81, 0x00, /* INPUT (Data Ary Abs) */
516 0xC0, /* END_COLLECTION */
517 }; /* */
518
519 /* System control descriptor (4) */
520 static const char syscontrol_descriptor[] = {
521 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
522 0x09, 0x80, /* USAGE (System Control) */
523 0xA1, 0x01, /* COLLECTION (Application) */
524 0x85, 0x04, /* REPORT_ID = 4 */
525 0x75, 0x02, /* REPORT_SIZE (2) */
526 0x95, 0x01, /* REPORT_COUNT (1) */
527 0x15, 0x01, /* LOGICAL_MIN (1) */
528 0x25, 0x03, /* LOGICAL_MAX (3) */
529 0x09, 0x82, /* USAGE (System Sleep) */
530 0x09, 0x81, /* USAGE (System Power Down) */
531 0x09, 0x83, /* USAGE (System Wake Up) */
532 0x81, 0x60, /* INPUT (Data Ary Abs NPrf Null) */
533 0x75, 0x06, /* REPORT_SIZE (6) */
534 0x81, 0x03, /* INPUT (Cnst Var Abs) */
535 0xC0, /* END_COLLECTION */
536 };
537
538 /* Media descriptor (8) */
539 static const char media_descriptor[] = {
540 0x06, 0xbc, 0xff, /* Usage Page 0xffbc */
541 0x09, 0x88, /* Usage 0x0088 */
542 0xa1, 0x01, /* BeginCollection */
543 0x85, 0x08, /* Report ID 8 */
544 0x19, 0x01, /* Usage Min 0x0001 */
545 0x29, 0xff, /* Usage Max 0x00ff */
546 0x15, 0x01, /* Logical Min 1 */
547 0x26, 0xff, 0x00, /* Logical Max 255 */
548 0x75, 0x08, /* Report Size 8 */
549 0x95, 0x01, /* Report Count 1 */
550 0x81, 0x00, /* Input */
551 0xc0, /* EndCollection */
552 }; /* */
553
554 /* HIDPP descriptor */
555 static const char hidpp_descriptor[] = {
556 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */
557 0x09, 0x01, /* Usage (Vendor Usage 1) */
558 0xa1, 0x01, /* Collection (Application) */
559 0x85, 0x10, /* Report ID (16) */
560 0x75, 0x08, /* Report Size (8) */
561 0x95, 0x06, /* Report Count (6) */
562 0x15, 0x00, /* Logical Minimum (0) */
563 0x26, 0xff, 0x00, /* Logical Maximum (255) */
564 0x09, 0x01, /* Usage (Vendor Usage 1) */
565 0x81, 0x00, /* Input (Data,Arr,Abs) */
566 0x09, 0x01, /* Usage (Vendor Usage 1) */
567 0x91, 0x00, /* Output (Data,Arr,Abs) */
568 0xc0, /* End Collection */
569 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */
570 0x09, 0x02, /* Usage (Vendor Usage 2) */
571 0xa1, 0x01, /* Collection (Application) */
572 0x85, 0x11, /* Report ID (17) */
573 0x75, 0x08, /* Report Size (8) */
574 0x95, 0x13, /* Report Count (19) */
575 0x15, 0x00, /* Logical Minimum (0) */
576 0x26, 0xff, 0x00, /* Logical Maximum (255) */
577 0x09, 0x02, /* Usage (Vendor Usage 2) */
578 0x81, 0x00, /* Input (Data,Arr,Abs) */
579 0x09, 0x02, /* Usage (Vendor Usage 2) */
580 0x91, 0x00, /* Output (Data,Arr,Abs) */
581 0xc0, /* End Collection */
582 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */
583 0x09, 0x04, /* Usage (Vendor Usage 0x04) */
584 0xa1, 0x01, /* Collection (Application) */
585 0x85, 0x20, /* Report ID (32) */
586 0x75, 0x08, /* Report Size (8) */
587 0x95, 0x0e, /* Report Count (14) */
588 0x15, 0x00, /* Logical Minimum (0) */
589 0x26, 0xff, 0x00, /* Logical Maximum (255) */
590 0x09, 0x41, /* Usage (Vendor Usage 0x41) */
591 0x81, 0x00, /* Input (Data,Arr,Abs) */
592 0x09, 0x41, /* Usage (Vendor Usage 0x41) */
593 0x91, 0x00, /* Output (Data,Arr,Abs) */
594 0x85, 0x21, /* Report ID (33) */
595 0x95, 0x1f, /* Report Count (31) */
596 0x15, 0x00, /* Logical Minimum (0) */
597 0x26, 0xff, 0x00, /* Logical Maximum (255) */
598 0x09, 0x42, /* Usage (Vendor Usage 0x42) */
599 0x81, 0x00, /* Input (Data,Arr,Abs) */
600 0x09, 0x42, /* Usage (Vendor Usage 0x42) */
601 0x91, 0x00, /* Output (Data,Arr,Abs) */
602 0xc0, /* End Collection */
603 };
604
605 /* Maximum size of all defined hid reports in bytes (including report id) */
606 #define MAX_REPORT_SIZE 8
607
608 /* Make sure the largest of each descriptor type is present here */
609 #define MAX_RDESC_SIZE \
610 (sizeof(kbd_lightspeed_1_3_descriptor) +\
611 sizeof(mse_bluetooth_descriptor) + \
612 sizeof(mse5_bluetooth_descriptor) + \
613 sizeof(consumer_descriptor) + \
614 sizeof(syscontrol_descriptor) + \
615 sizeof(media_descriptor) + \
616 sizeof(hidpp_descriptor))
617
618 /* Number of possible hid report types that can be created by this driver.
619 *
620 * Right now, RF report types have the same report types (or report id's)
621 * than the hid report created from those RF reports. In the future
622 * this doesnt have to be true.
623 *
624 * For instance, RF report type 0x01 which has a size of 8 bytes, corresponds
625 * to hid report id 0x01, this is standard keyboard. Same thing applies to mice
626 * reports and consumer control, etc. If a new RF report is created, it doesn't
627 * has to have the same report id as its corresponding hid report, so an
628 * translation may have to take place for future report types.
629 */
630 #define NUMBER_OF_HID_REPORTS 32
631 static const u8 hid_reportid_size_map[NUMBER_OF_HID_REPORTS] = {
632 [1] = 8, /* Standard keyboard */
633 [2] = 8, /* Standard mouse */
634 [3] = 5, /* Consumer control */
635 [4] = 2, /* System control */
636 [8] = 2, /* Media Center */
637 };
638
639
640 #define LOGITECH_DJ_INTERFACE_NUMBER 0x02
641
642 static const struct hid_ll_driver logi_dj_ll_driver;
643
644 static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev);
645 static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev,
646 unsigned int timeout);
647 static void delayedwork_callback(struct work_struct *work);
648
649 static LIST_HEAD(dj_hdev_list);
650 static DEFINE_MUTEX(dj_hdev_list_lock);
651
recvr_type_is_bluetooth(enum recvr_type type)652 static bool recvr_type_is_bluetooth(enum recvr_type type)
653 {
654 return type == recvr_type_bluetooth || type == recvr_type_dinovo;
655 }
656
657 /*
658 * dj/HID++ receivers are really a single logical entity, but for BIOS/Windows
659 * compatibility they have multiple USB interfaces. On HID++ receivers we need
660 * to listen for input reports on both interfaces. The functions below are used
661 * to create a single struct dj_receiver_dev for all interfaces belonging to
662 * a single USB-device / receiver.
663 */
dj_find_receiver_dev(struct hid_device * hdev,enum recvr_type type)664 static struct dj_receiver_dev *dj_find_receiver_dev(struct hid_device *hdev,
665 enum recvr_type type)
666 {
667 struct dj_receiver_dev *djrcv_dev;
668 char sep;
669
670 /*
671 * The bluetooth receiver contains a built-in hub and has separate
672 * USB-devices for the keyboard and mouse interfaces.
673 */
674 sep = recvr_type_is_bluetooth(type) ? '.' : '/';
675
676 /* Try to find an already-probed interface from the same device */
677 list_for_each_entry(djrcv_dev, &dj_hdev_list, list) {
678 if (djrcv_dev->mouse &&
679 hid_compare_device_paths(hdev, djrcv_dev->mouse, sep)) {
680 kref_get(&djrcv_dev->kref);
681 return djrcv_dev;
682 }
683 if (djrcv_dev->keyboard &&
684 hid_compare_device_paths(hdev, djrcv_dev->keyboard, sep)) {
685 kref_get(&djrcv_dev->kref);
686 return djrcv_dev;
687 }
688 if (djrcv_dev->hidpp &&
689 hid_compare_device_paths(hdev, djrcv_dev->hidpp, sep)) {
690 kref_get(&djrcv_dev->kref);
691 return djrcv_dev;
692 }
693 }
694
695 return NULL;
696 }
697
dj_release_receiver_dev(struct kref * kref)698 static void dj_release_receiver_dev(struct kref *kref)
699 {
700 struct dj_receiver_dev *djrcv_dev = container_of(kref, struct dj_receiver_dev, kref);
701
702 list_del(&djrcv_dev->list);
703 kfifo_free(&djrcv_dev->notif_fifo);
704 kfree(djrcv_dev);
705 }
706
dj_put_receiver_dev(struct hid_device * hdev)707 static void dj_put_receiver_dev(struct hid_device *hdev)
708 {
709 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
710
711 mutex_lock(&dj_hdev_list_lock);
712
713 if (djrcv_dev->mouse == hdev)
714 djrcv_dev->mouse = NULL;
715 if (djrcv_dev->keyboard == hdev)
716 djrcv_dev->keyboard = NULL;
717 if (djrcv_dev->hidpp == hdev)
718 djrcv_dev->hidpp = NULL;
719
720 kref_put(&djrcv_dev->kref, dj_release_receiver_dev);
721
722 mutex_unlock(&dj_hdev_list_lock);
723 }
724
dj_get_receiver_dev(struct hid_device * hdev,enum recvr_type type,unsigned int application,bool is_hidpp)725 static struct dj_receiver_dev *dj_get_receiver_dev(struct hid_device *hdev,
726 enum recvr_type type,
727 unsigned int application,
728 bool is_hidpp)
729 {
730 struct dj_receiver_dev *djrcv_dev;
731
732 mutex_lock(&dj_hdev_list_lock);
733
734 djrcv_dev = dj_find_receiver_dev(hdev, type);
735 if (!djrcv_dev) {
736 djrcv_dev = kzalloc_obj(*djrcv_dev);
737 if (!djrcv_dev)
738 goto out;
739
740 INIT_WORK(&djrcv_dev->work, delayedwork_callback);
741 spin_lock_init(&djrcv_dev->lock);
742 if (kfifo_alloc(&djrcv_dev->notif_fifo,
743 DJ_MAX_NUMBER_NOTIFS * sizeof(struct dj_workitem),
744 GFP_KERNEL)) {
745 kfree(djrcv_dev);
746 djrcv_dev = NULL;
747 goto out;
748 }
749 kref_init(&djrcv_dev->kref);
750 list_add_tail(&djrcv_dev->list, &dj_hdev_list);
751 djrcv_dev->last_query = jiffies;
752 djrcv_dev->type = type;
753 }
754
755 if (application == HID_GD_KEYBOARD)
756 djrcv_dev->keyboard = hdev;
757 if (application == HID_GD_MOUSE)
758 djrcv_dev->mouse = hdev;
759 if (is_hidpp)
760 djrcv_dev->hidpp = hdev;
761
762 hid_set_drvdata(hdev, djrcv_dev);
763 out:
764 mutex_unlock(&dj_hdev_list_lock);
765 return djrcv_dev;
766 }
767
logi_dj_recv_destroy_djhid_device(struct dj_receiver_dev * djrcv_dev,struct dj_workitem * workitem)768 static void logi_dj_recv_destroy_djhid_device(struct dj_receiver_dev *djrcv_dev,
769 struct dj_workitem *workitem)
770 {
771 /* Called in delayed work context */
772 struct dj_device *dj_dev;
773 unsigned long flags;
774
775 spin_lock_irqsave(&djrcv_dev->lock, flags);
776 dj_dev = djrcv_dev->paired_dj_devices[workitem->device_index];
777 djrcv_dev->paired_dj_devices[workitem->device_index] = NULL;
778 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
779
780 if (dj_dev != NULL) {
781 hid_destroy_device(dj_dev->hdev);
782 kfree(dj_dev);
783 } else {
784 hid_err(djrcv_dev->hidpp, "%s: can't destroy a NULL device\n",
785 __func__);
786 }
787 }
788
logi_dj_recv_add_djhid_device(struct dj_receiver_dev * djrcv_dev,struct dj_workitem * workitem)789 static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
790 struct dj_workitem *workitem)
791 {
792 /* Called in delayed work context */
793 struct hid_device *djrcv_hdev = djrcv_dev->hidpp;
794 struct hid_device *dj_hiddev;
795 struct dj_device *dj_dev;
796 u8 device_index = workitem->device_index;
797 unsigned long flags;
798
799 /* Device index goes from 1 to 6, we need 3 bytes to store the
800 * semicolon, the index, and a null terminator
801 */
802 unsigned char tmpstr[3];
803
804 /* We are the only one ever adding a device, no need to lock */
805 if (djrcv_dev->paired_dj_devices[device_index]) {
806 /* The device is already known. No need to reallocate it. */
807 dbg_hid("%s: device is already known\n", __func__);
808 return;
809 }
810
811 dj_hiddev = hid_allocate_device();
812 if (IS_ERR(dj_hiddev)) {
813 hid_err(djrcv_hdev, "%s: hid_allocate_dev failed\n", __func__);
814 return;
815 }
816
817 dj_hiddev->ll_driver = &logi_dj_ll_driver;
818
819 dj_hiddev->dev.parent = &djrcv_hdev->dev;
820 dj_hiddev->bus = BUS_USB;
821 dj_hiddev->vendor = djrcv_hdev->vendor;
822 dj_hiddev->product = (workitem->quad_id_msb << 8) |
823 workitem->quad_id_lsb;
824 if (workitem->device_type) {
825 const char *type_str = "Device";
826
827 switch (workitem->device_type) {
828 case 0x01: type_str = "Keyboard"; break;
829 case 0x02: type_str = "Mouse"; break;
830 case 0x03: type_str = "Numpad"; break;
831 case 0x04: type_str = "Presenter"; break;
832 case 0x07: type_str = "Remote Control"; break;
833 case 0x08: type_str = "Trackball"; break;
834 case 0x09: type_str = "Touchpad"; break;
835 }
836 snprintf(dj_hiddev->name, sizeof(dj_hiddev->name),
837 "Logitech Wireless %s PID:%04x",
838 type_str, dj_hiddev->product);
839 } else {
840 snprintf(dj_hiddev->name, sizeof(dj_hiddev->name),
841 "Logitech Wireless Device PID:%04x",
842 dj_hiddev->product);
843 }
844
845 if (djrcv_dev->type == recvr_type_27mhz)
846 dj_hiddev->group = HID_GROUP_LOGITECH_27MHZ_DEVICE;
847 else
848 dj_hiddev->group = HID_GROUP_LOGITECH_DJ_DEVICE;
849
850 memcpy(dj_hiddev->phys, djrcv_hdev->phys, sizeof(djrcv_hdev->phys));
851 snprintf(tmpstr, sizeof(tmpstr), ":%d", device_index);
852 strlcat(dj_hiddev->phys, tmpstr, sizeof(dj_hiddev->phys));
853
854 dj_dev = kzalloc_obj(struct dj_device);
855
856 if (!dj_dev) {
857 hid_err(djrcv_hdev, "%s: failed allocating dj_dev\n", __func__);
858 goto dj_device_allocate_fail;
859 }
860
861 dj_dev->reports_supported = workitem->reports_supported;
862 dj_dev->hdev = dj_hiddev;
863 dj_dev->dj_receiver_dev = djrcv_dev;
864 dj_dev->device_index = device_index;
865 dj_hiddev->driver_data = dj_dev;
866
867 spin_lock_irqsave(&djrcv_dev->lock, flags);
868 djrcv_dev->paired_dj_devices[device_index] = dj_dev;
869 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
870
871 if (hid_add_device(dj_hiddev)) {
872 hid_err(djrcv_hdev, "%s: failed adding dj_device\n", __func__);
873 goto hid_add_device_fail;
874 }
875
876 return;
877
878 hid_add_device_fail:
879 spin_lock_irqsave(&djrcv_dev->lock, flags);
880 djrcv_dev->paired_dj_devices[device_index] = NULL;
881 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
882 kfree(dj_dev);
883 dj_device_allocate_fail:
884 hid_destroy_device(dj_hiddev);
885 }
886
delayedwork_callback(struct work_struct * work)887 static void delayedwork_callback(struct work_struct *work)
888 {
889 struct dj_receiver_dev *djrcv_dev =
890 container_of(work, struct dj_receiver_dev, work);
891
892 struct dj_workitem workitem;
893 unsigned long flags;
894 int count;
895
896 dbg_hid("%s\n", __func__);
897
898 spin_lock_irqsave(&djrcv_dev->lock, flags);
899
900 /*
901 * Since we attach to multiple interfaces, we may get scheduled before
902 * we are bound to the HID++ interface, catch this.
903 */
904 if (!djrcv_dev->ready) {
905 pr_warn("%s: delayedwork queued before hidpp interface was enumerated\n",
906 __func__);
907 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
908 return;
909 }
910
911 count = kfifo_out(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
912
913 if (count != sizeof(workitem)) {
914 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
915 return;
916 }
917
918 if (!kfifo_is_empty(&djrcv_dev->notif_fifo))
919 schedule_work(&djrcv_dev->work);
920
921 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
922
923 switch (workitem.type) {
924 case WORKITEM_TYPE_PAIRED:
925 logi_dj_recv_add_djhid_device(djrcv_dev, &workitem);
926 break;
927 case WORKITEM_TYPE_UNPAIRED:
928 logi_dj_recv_destroy_djhid_device(djrcv_dev, &workitem);
929 break;
930 case WORKITEM_TYPE_UNKNOWN:
931 if (!djrcv_dev->dj_mode)
932 logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
933
934 logi_dj_recv_query_paired_devices(djrcv_dev);
935 break;
936 case WORKITEM_TYPE_EMPTY:
937 dbg_hid("%s: device list is empty\n", __func__);
938 break;
939 }
940 }
941
942 /*
943 * Sometimes we receive reports for which we do not have a paired dj_device
944 * associated with the device_index or report-type to forward the report to.
945 * This means that the original "device paired" notification corresponding
946 * to the dj_device never arrived to this driver. Possible reasons for this are:
947 * 1) hid-core discards all packets coming from a device during probe().
948 * 2) if the receiver is plugged into a KVM switch then the pairing reports
949 * are only forwarded to it if the focus is on this PC.
950 * This function deals with this by re-asking the receiver for the list of
951 * connected devices in the delayed work callback.
952 * This function MUST be called with djrcv->lock held.
953 */
logi_dj_recv_queue_unknown_work(struct dj_receiver_dev * djrcv_dev)954 static void logi_dj_recv_queue_unknown_work(struct dj_receiver_dev *djrcv_dev)
955 {
956 struct dj_workitem workitem = { .type = WORKITEM_TYPE_UNKNOWN };
957
958 /* Rate limit queries done because of unhandled reports to 2/sec */
959 if (time_before(jiffies, djrcv_dev->last_query + HZ / 2))
960 return;
961
962 kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
963 schedule_work(&djrcv_dev->work);
964 }
965
logi_dj_recv_queue_notification(struct dj_receiver_dev * djrcv_dev,struct dj_report * dj_report)966 static void logi_dj_recv_queue_notification(struct dj_receiver_dev *djrcv_dev,
967 struct dj_report *dj_report)
968 {
969 /* We are called from atomic context (tasklet && djrcv->lock held) */
970 struct dj_workitem workitem = {
971 .device_index = dj_report->device_index,
972 };
973
974 switch (dj_report->report_type) {
975 case REPORT_TYPE_NOTIF_DEVICE_PAIRED:
976 workitem.type = WORKITEM_TYPE_PAIRED;
977 if (dj_report->report_params[DEVICE_PAIRED_PARAM_SPFUNCTION] &
978 SPFUNCTION_DEVICE_LIST_EMPTY) {
979 workitem.type = WORKITEM_TYPE_EMPTY;
980 break;
981 }
982 fallthrough;
983 case REPORT_TYPE_NOTIF_DEVICE_UNPAIRED:
984 workitem.quad_id_msb =
985 dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_MSB];
986 workitem.quad_id_lsb =
987 dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_LSB];
988 workitem.reports_supported = get_unaligned_le32(
989 dj_report->report_params +
990 DEVICE_PAIRED_RF_REPORT_TYPE);
991 workitem.reports_supported |= HIDPP;
992 if (dj_report->report_type == REPORT_TYPE_NOTIF_DEVICE_UNPAIRED)
993 workitem.type = WORKITEM_TYPE_UNPAIRED;
994 break;
995 default:
996 logi_dj_recv_queue_unknown_work(djrcv_dev);
997 return;
998 }
999
1000 kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
1001 schedule_work(&djrcv_dev->work);
1002 }
1003
1004 /*
1005 * Some quad/bluetooth keyboards have a builtin touchpad in this case we see
1006 * only 1 paired device with a device_type of REPORT_TYPE_KEYBOARD. For the
1007 * touchpad to work we must also forward mouse input reports to the dj_hiddev
1008 * created for the keyboard (instead of forwarding them to a second paired
1009 * device with a device_type of REPORT_TYPE_MOUSE as we normally would).
1010 *
1011 * On Dinovo receivers the keyboard's touchpad and an optional paired actual
1012 * mouse send separate input reports, INPUT(2) aka STD_MOUSE for the mouse
1013 * and INPUT(5) aka KBD_MOUSE for the keyboard's touchpad.
1014 *
1015 * On MX5x00 receivers (which can also be paired with a Dinovo keyboard)
1016 * INPUT(2) is used for both an optional paired actual mouse and for the
1017 * keyboard's touchpad.
1018 */
1019 static const u16 kbd_builtin_touchpad_ids[] = {
1020 0xb309, /* Dinovo Edge */
1021 0xb30c, /* Dinovo Mini */
1022 };
1023
logi_hidpp_dev_conn_notif_equad(struct hid_device * hdev,struct hidpp_event * hidpp_report,struct dj_workitem * workitem)1024 static void logi_hidpp_dev_conn_notif_equad(struct hid_device *hdev,
1025 struct hidpp_event *hidpp_report,
1026 struct dj_workitem *workitem)
1027 {
1028 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
1029 int i, id;
1030
1031 workitem->type = WORKITEM_TYPE_PAIRED;
1032 workitem->device_type = hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
1033 HIDPP_DEVICE_TYPE_MASK;
1034 workitem->quad_id_msb = hidpp_report->params[HIDPP_PARAM_EQUAD_MSB];
1035 workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_EQUAD_LSB];
1036 switch (workitem->device_type) {
1037 case REPORT_TYPE_KEYBOARD:
1038 workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
1039 POWER_KEYS | MEDIA_CENTER |
1040 HIDPP;
1041 id = (workitem->quad_id_msb << 8) | workitem->quad_id_lsb;
1042 for (i = 0; i < ARRAY_SIZE(kbd_builtin_touchpad_ids); i++) {
1043 if (id == kbd_builtin_touchpad_ids[i]) {
1044 if (djrcv_dev->type == recvr_type_dinovo)
1045 workitem->reports_supported |= KBD_MOUSE;
1046 else
1047 workitem->reports_supported |= STD_MOUSE;
1048 break;
1049 }
1050 }
1051 break;
1052 case REPORT_TYPE_MOUSE:
1053 workitem->reports_supported |= STD_MOUSE | HIDPP | MULTIMEDIA;
1054 break;
1055 }
1056 }
1057
logi_hidpp_dev_conn_notif_27mhz(struct hid_device * hdev,struct hidpp_event * hidpp_report,struct dj_workitem * workitem)1058 static void logi_hidpp_dev_conn_notif_27mhz(struct hid_device *hdev,
1059 struct hidpp_event *hidpp_report,
1060 struct dj_workitem *workitem)
1061 {
1062 workitem->type = WORKITEM_TYPE_PAIRED;
1063 workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_27MHZ_DEVID];
1064 switch (hidpp_report->device_index) {
1065 case 1: /* Index 1 is always a mouse */
1066 case 2: /* Index 2 is always a mouse */
1067 workitem->device_type = HIDPP_DEVICE_TYPE_MOUSE;
1068 workitem->reports_supported |= STD_MOUSE | HIDPP;
1069 break;
1070 case 3: /* Index 3 is always the keyboard */
1071 if (hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] & HIDPP_27MHZ_SECURE_MASK) {
1072 hid_info(hdev, "Keyboard connection is encrypted\n");
1073 } else {
1074 hid_warn(hdev, "Keyboard events are send over the air in plain-text / unencrypted\n");
1075 hid_warn(hdev, "See: https://gitlab.freedesktop.org/jwrdegoede/logitech-27mhz-keyboard-encryption-setup/\n");
1076 }
1077 fallthrough;
1078 case 4: /* Index 4 is used for an optional separate numpad */
1079 workitem->device_type = HIDPP_DEVICE_TYPE_KEYBOARD;
1080 workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
1081 POWER_KEYS | HIDPP;
1082 break;
1083 default:
1084 hid_warn(hdev, "%s: unexpected device-index %d", __func__,
1085 hidpp_report->device_index);
1086 }
1087 }
1088
logi_hidpp_recv_queue_notif(struct hid_device * hdev,struct hidpp_event * hidpp_report)1089 static void logi_hidpp_recv_queue_notif(struct hid_device *hdev,
1090 struct hidpp_event *hidpp_report)
1091 {
1092 /* We are called from atomic context (tasklet && djrcv->lock held) */
1093 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
1094 const char *device_type = "UNKNOWN";
1095 struct dj_workitem workitem = {
1096 .type = WORKITEM_TYPE_EMPTY,
1097 .device_index = hidpp_report->device_index,
1098 };
1099
1100 switch (hidpp_report->params[HIDPP_PARAM_PROTO_TYPE]) {
1101 case 0x01:
1102 device_type = "Bluetooth";
1103 /* Bluetooth connect packet contents is the same as (e)QUAD */
1104 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
1105 if (!(hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
1106 HIDPP_MANUFACTURER_MASK)) {
1107 hid_info(hdev, "Non Logitech device connected on slot %d\n",
1108 hidpp_report->device_index);
1109 workitem.reports_supported &= ~HIDPP;
1110 }
1111 break;
1112 case 0x02:
1113 device_type = "27 Mhz";
1114 logi_hidpp_dev_conn_notif_27mhz(hdev, hidpp_report, &workitem);
1115 break;
1116 case 0x03:
1117 device_type = "QUAD or eQUAD";
1118 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
1119 break;
1120 case 0x04:
1121 device_type = "eQUAD step 4 DJ";
1122 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
1123 break;
1124 case 0x05:
1125 device_type = "DFU Lite";
1126 break;
1127 case 0x06:
1128 device_type = "eQUAD step 4 Lite";
1129 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
1130 break;
1131 case 0x07:
1132 device_type = "eQUAD step 4 Gaming";
1133 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
1134 workitem.reports_supported |= STD_KEYBOARD;
1135 break;
1136 case 0x08:
1137 device_type = "eQUAD step 4 for gamepads";
1138 break;
1139 case 0x0a:
1140 device_type = "eQUAD nano Lite";
1141 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
1142 break;
1143 case 0x0c:
1144 device_type = "eQUAD Lightspeed 1";
1145 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
1146 workitem.reports_supported |= STD_KEYBOARD;
1147 break;
1148 case 0x0d:
1149 device_type = "eQUAD Lightspeed 1.1";
1150 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
1151 workitem.reports_supported |= STD_KEYBOARD;
1152 break;
1153 case 0x0f:
1154 case 0x11:
1155 device_type = "eQUAD Lightspeed 1.2";
1156 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
1157 workitem.reports_supported |= STD_KEYBOARD;
1158 break;
1159 }
1160
1161 /* custom receiver device (eg. powerplay) */
1162 if (hidpp_report->device_index == 7) {
1163 workitem.reports_supported |= HIDPP;
1164 }
1165
1166 if (workitem.type == WORKITEM_TYPE_EMPTY) {
1167 hid_warn(hdev,
1168 "unusable device of type %s (0x%02x) connected on slot %d",
1169 device_type,
1170 hidpp_report->params[HIDPP_PARAM_PROTO_TYPE],
1171 hidpp_report->device_index);
1172 return;
1173 }
1174
1175 hid_info(hdev, "device of type %s (0x%02x) connected on slot %d",
1176 device_type, hidpp_report->params[HIDPP_PARAM_PROTO_TYPE],
1177 hidpp_report->device_index);
1178
1179 kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
1180 schedule_work(&djrcv_dev->work);
1181 }
1182
logi_dj_recv_forward_null_report(struct dj_receiver_dev * djrcv_dev,struct dj_report * dj_report)1183 static void logi_dj_recv_forward_null_report(struct dj_receiver_dev *djrcv_dev,
1184 struct dj_report *dj_report)
1185 {
1186 /* We are called from atomic context (tasklet && djrcv->lock held) */
1187 unsigned int i;
1188 u8 reportbuffer[MAX_REPORT_SIZE];
1189 struct dj_device *djdev;
1190
1191 djdev = djrcv_dev->paired_dj_devices[dj_report->device_index];
1192
1193 memset(reportbuffer, 0, sizeof(reportbuffer));
1194
1195 for (i = 0; i < NUMBER_OF_HID_REPORTS; i++) {
1196 if (djdev->reports_supported & (1 << i)) {
1197 reportbuffer[0] = i;
1198 if (hid_input_report(djdev->hdev,
1199 HID_INPUT_REPORT,
1200 reportbuffer,
1201 hid_reportid_size_map[i], 1)) {
1202 dbg_hid("hid_input_report error sending null "
1203 "report\n");
1204 }
1205 }
1206 }
1207 }
1208
logi_dj_recv_forward_dj(struct dj_receiver_dev * djrcv_dev,struct dj_report * dj_report)1209 static void logi_dj_recv_forward_dj(struct dj_receiver_dev *djrcv_dev,
1210 struct dj_report *dj_report)
1211 {
1212 /* We are called from atomic context (tasklet && djrcv->lock held) */
1213 struct dj_device *dj_device;
1214
1215 dj_device = djrcv_dev->paired_dj_devices[dj_report->device_index];
1216
1217 if ((dj_report->report_type > ARRAY_SIZE(hid_reportid_size_map) - 1) ||
1218 (hid_reportid_size_map[dj_report->report_type] == 0)) {
1219 dbg_hid("invalid report type:%x\n", dj_report->report_type);
1220 return;
1221 }
1222
1223 if (hid_input_report(dj_device->hdev,
1224 HID_INPUT_REPORT, &dj_report->report_type,
1225 hid_reportid_size_map[dj_report->report_type], 1)) {
1226 dbg_hid("hid_input_report error\n");
1227 }
1228 }
1229
logi_dj_recv_forward_report(struct dj_device * dj_dev,u8 * data,int size)1230 static void logi_dj_recv_forward_report(struct dj_device *dj_dev, u8 *data,
1231 int size)
1232 {
1233 /* We are called from atomic context (tasklet && djrcv->lock held) */
1234 if (hid_input_report(dj_dev->hdev, HID_INPUT_REPORT, data, size, 1))
1235 dbg_hid("hid_input_report error\n");
1236 }
1237
logi_dj_recv_forward_input_report(struct hid_device * hdev,u8 * data,int size)1238 static void logi_dj_recv_forward_input_report(struct hid_device *hdev,
1239 u8 *data, int size)
1240 {
1241 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
1242 struct dj_device *dj_dev;
1243 unsigned long flags;
1244 u8 report = data[0];
1245 int i;
1246
1247 if (report > REPORT_TYPE_RFREPORT_LAST) {
1248 hid_err(hdev, "Unexpected input report number %d\n", report);
1249 return;
1250 }
1251
1252 spin_lock_irqsave(&djrcv_dev->lock, flags);
1253 for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) {
1254 dj_dev = djrcv_dev->paired_dj_devices[i];
1255 if (dj_dev && (dj_dev->reports_supported & BIT(report))) {
1256 logi_dj_recv_forward_report(dj_dev, data, size);
1257 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
1258 return;
1259 }
1260 }
1261
1262 logi_dj_recv_queue_unknown_work(djrcv_dev);
1263 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
1264
1265 dbg_hid("No dj-devs handling input report number %d\n", report);
1266 }
1267
logi_dj_recv_send_report(struct dj_receiver_dev * djrcv_dev,struct dj_report * dj_report)1268 static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev,
1269 struct dj_report *dj_report)
1270 {
1271 struct hid_device *hdev = djrcv_dev->hidpp;
1272 struct hid_report *report;
1273 struct hid_report_enum *output_report_enum;
1274 u8 *data = (u8 *)(&dj_report->device_index);
1275 unsigned int i;
1276
1277 output_report_enum = &hdev->report_enum[HID_OUTPUT_REPORT];
1278 report = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT];
1279
1280 if (!report) {
1281 hid_err(hdev, "%s: unable to find dj report\n", __func__);
1282 return -ENODEV;
1283 }
1284
1285 for (i = 0; i < DJREPORT_SHORT_LENGTH - 1; i++)
1286 report->field[0]->value[i] = data[i];
1287
1288 hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
1289
1290 return 0;
1291 }
1292
logi_dj_recv_query_hidpp_devices(struct dj_receiver_dev * djrcv_dev)1293 static int logi_dj_recv_query_hidpp_devices(struct dj_receiver_dev *djrcv_dev)
1294 {
1295 static const u8 template[] = {
1296 REPORT_ID_HIDPP_SHORT,
1297 HIDPP_RECEIVER_INDEX,
1298 HIDPP_SET_REGISTER,
1299 HIDPP_REG_CONNECTION_STATE,
1300 HIDPP_FAKE_DEVICE_ARRIVAL,
1301 0x00, 0x00
1302 };
1303 u8 *hidpp_report;
1304 int retval;
1305
1306 hidpp_report = kmemdup(template, sizeof(template), GFP_KERNEL);
1307 if (!hidpp_report)
1308 return -ENOMEM;
1309
1310 retval = hid_hw_raw_request(djrcv_dev->hidpp,
1311 REPORT_ID_HIDPP_SHORT,
1312 hidpp_report, sizeof(template),
1313 HID_OUTPUT_REPORT,
1314 HID_REQ_SET_REPORT);
1315
1316 kfree(hidpp_report);
1317 return (retval < 0) ? retval : 0;
1318 }
1319
logi_dj_recv_query_paired_devices(struct dj_receiver_dev * djrcv_dev)1320 static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev)
1321 {
1322 struct dj_report *dj_report;
1323 int retval;
1324
1325 djrcv_dev->last_query = jiffies;
1326
1327 if (!djrcv_dev->dj_mode)
1328 return 0;
1329
1330 if (djrcv_dev->type != recvr_type_dj) {
1331 retval = logi_dj_recv_query_hidpp_devices(djrcv_dev);
1332 goto out;
1333 }
1334
1335 dj_report = kzalloc_obj(struct dj_report);
1336 if (!dj_report)
1337 return -ENOMEM;
1338 dj_report->report_id = REPORT_ID_DJ_SHORT;
1339 dj_report->device_index = HIDPP_RECEIVER_INDEX;
1340 dj_report->report_type = REPORT_TYPE_CMD_GET_PAIRED_DEVICES;
1341 retval = logi_dj_recv_send_report(djrcv_dev, dj_report);
1342 kfree(dj_report);
1343 out:
1344 if (retval < 0)
1345 hid_err(djrcv_dev->hidpp, "%s error:%d\n", __func__, retval);
1346
1347 return retval;
1348 }
1349
1350
logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev * djrcv_dev,unsigned timeout)1351 static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev,
1352 unsigned timeout)
1353 {
1354 struct hid_device *hdev = djrcv_dev->hidpp;
1355 struct dj_report *dj_report;
1356 u8 *buf;
1357 int retval = 0;
1358
1359 dj_report = kzalloc_obj(struct dj_report);
1360 if (!dj_report)
1361 return -ENOMEM;
1362
1363 if (djrcv_dev->type == recvr_type_dj) {
1364 dj_report->report_id = REPORT_ID_DJ_SHORT;
1365 dj_report->device_index = HIDPP_RECEIVER_INDEX;
1366 dj_report->report_type = REPORT_TYPE_CMD_SWITCH;
1367 dj_report->report_params[CMD_SWITCH_PARAM_DEVBITFIELD] = 0x3F;
1368 dj_report->report_params[CMD_SWITCH_PARAM_TIMEOUT_SECONDS] =
1369 (u8)timeout;
1370
1371 retval = logi_dj_recv_send_report(djrcv_dev, dj_report);
1372 if (retval)
1373 goto out;
1374
1375 /*
1376 * Ugly sleep to work around a USB 3.0 bug when the receiver is
1377 * still processing the "switch-to-dj" command while we send an
1378 * other command.
1379 * 50 msec should gives enough time to the receiver to be ready.
1380 */
1381 msleep(50);
1382 }
1383
1384 /*
1385 * Magical bits to set up hidpp notifications when the dj devices
1386 * are connected/disconnected.
1387 *
1388 * We can reuse dj_report because HIDPP_REPORT_SHORT_LENGTH is smaller
1389 * than DJREPORT_SHORT_LENGTH.
1390 */
1391 buf = (u8 *)dj_report;
1392
1393 memset(buf, 0, HIDPP_REPORT_SHORT_LENGTH);
1394
1395 buf[0] = REPORT_ID_HIDPP_SHORT;
1396 buf[1] = HIDPP_RECEIVER_INDEX;
1397 buf[2] = 0x80;
1398 buf[3] = 0x00;
1399 buf[4] = 0x00;
1400 buf[5] = 0x09;
1401 buf[6] = 0x00;
1402
1403 retval = hid_hw_raw_request(hdev, REPORT_ID_HIDPP_SHORT, buf,
1404 HIDPP_REPORT_SHORT_LENGTH, HID_OUTPUT_REPORT,
1405 HID_REQ_SET_REPORT);
1406
1407 out:
1408 kfree(dj_report);
1409
1410 if (retval < 0)
1411 hid_err(hdev, "%s error:%d\n", __func__, retval);
1412
1413 djrcv_dev->dj_mode = retval >= 0;
1414 return retval;
1415 }
1416
1417
logi_dj_ll_open(struct hid_device * hid)1418 static int logi_dj_ll_open(struct hid_device *hid)
1419 {
1420 dbg_hid("%s: %s\n", __func__, hid->phys);
1421 return 0;
1422
1423 }
1424
logi_dj_ll_close(struct hid_device * hid)1425 static void logi_dj_ll_close(struct hid_device *hid)
1426 {
1427 dbg_hid("%s: %s\n", __func__, hid->phys);
1428 }
1429
1430 /*
1431 * Register 0xB5 is "pairing information". It is solely intended for the
1432 * receiver, so do not overwrite the device index.
1433 */
1434 static u8 unifying_pairing_query[] = { REPORT_ID_HIDPP_SHORT,
1435 HIDPP_RECEIVER_INDEX,
1436 HIDPP_GET_LONG_REGISTER,
1437 HIDPP_REG_PAIRING_INFORMATION };
1438 static u8 unifying_pairing_answer[] = { REPORT_ID_HIDPP_LONG,
1439 HIDPP_RECEIVER_INDEX,
1440 HIDPP_GET_LONG_REGISTER,
1441 HIDPP_REG_PAIRING_INFORMATION };
1442
logi_dj_ll_raw_request(struct hid_device * hid,unsigned char reportnum,__u8 * buf,size_t count,unsigned char report_type,int reqtype)1443 static int logi_dj_ll_raw_request(struct hid_device *hid,
1444 unsigned char reportnum, __u8 *buf,
1445 size_t count, unsigned char report_type,
1446 int reqtype)
1447 {
1448 struct dj_device *djdev = hid->driver_data;
1449 struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev;
1450 u8 *out_buf;
1451 int ret;
1452
1453 if ((buf[0] == REPORT_ID_HIDPP_SHORT) ||
1454 (buf[0] == REPORT_ID_HIDPP_LONG) ||
1455 (buf[0] == REPORT_ID_HIDPP_VERY_LONG)) {
1456 if (count < 2)
1457 return -EINVAL;
1458
1459 /* special case where we should not overwrite
1460 * the device_index */
1461 if (count == 7 && !memcmp(buf, unifying_pairing_query,
1462 sizeof(unifying_pairing_query)))
1463 buf[4] = (buf[4] & 0xf0) | (djdev->device_index - 1);
1464 else
1465 buf[1] = djdev->device_index;
1466 return hid_hw_raw_request(djrcv_dev->hidpp, reportnum, buf,
1467 count, report_type, reqtype);
1468 }
1469
1470 if (buf[0] != REPORT_TYPE_LEDS)
1471 return -EINVAL;
1472
1473 if (djrcv_dev->type != recvr_type_dj && count >= 2) {
1474 unsigned char led_report_id = 0;
1475
1476 if (!djrcv_dev->keyboard) {
1477 hid_warn(hid, "Received REPORT_TYPE_LEDS request before the keyboard interface was enumerated\n");
1478 return 0;
1479 }
1480
1481 /* This Lightspeed receiver expects LED reports with report ID 1 */
1482 if (djrcv_dev->type == recvr_type_gaming_hidpp_ls_1_3)
1483 led_report_id = 1;
1484
1485 /* usbhid overrides the report ID and ignores the first byte */
1486 return hid_hw_raw_request(djrcv_dev->keyboard, led_report_id, buf, count,
1487 report_type, reqtype);
1488 }
1489
1490 out_buf = kzalloc(DJREPORT_SHORT_LENGTH, GFP_ATOMIC);
1491 if (!out_buf)
1492 return -ENOMEM;
1493
1494 if (count > DJREPORT_SHORT_LENGTH - 2)
1495 count = DJREPORT_SHORT_LENGTH - 2;
1496
1497 out_buf[0] = REPORT_ID_DJ_SHORT;
1498 out_buf[1] = djdev->device_index;
1499 memcpy(out_buf + 2, buf, count);
1500
1501 ret = hid_hw_raw_request(djrcv_dev->hidpp, out_buf[0], out_buf,
1502 DJREPORT_SHORT_LENGTH, report_type, reqtype);
1503
1504 kfree(out_buf);
1505 return ret;
1506 }
1507
rdcat(char * rdesc,unsigned int * rsize,const char * data,unsigned int size)1508 static void rdcat(char *rdesc, unsigned int *rsize, const char *data, unsigned int size)
1509 {
1510 memcpy(rdesc + *rsize, data, size);
1511 *rsize += size;
1512 }
1513
logi_dj_ll_parse(struct hid_device * hid)1514 static int logi_dj_ll_parse(struct hid_device *hid)
1515 {
1516 struct dj_device *djdev = hid->driver_data;
1517 unsigned int rsize = 0;
1518 char *rdesc;
1519 int retval;
1520
1521 dbg_hid("%s\n", __func__);
1522
1523 djdev->hdev->version = 0x0111;
1524 djdev->hdev->country = 0x00;
1525
1526 rdesc = kmalloc(MAX_RDESC_SIZE, GFP_KERNEL);
1527 if (!rdesc)
1528 return -ENOMEM;
1529
1530 if (djdev->reports_supported & STD_KEYBOARD) {
1531 dbg_hid("%s: sending a kbd descriptor, reports_supported: %llx\n",
1532 __func__, djdev->reports_supported);
1533 if (djdev->dj_receiver_dev->type == recvr_type_gaming_hidpp_ls_1_3)
1534 rdcat(rdesc, &rsize, kbd_lightspeed_1_3_descriptor,
1535 sizeof(kbd_lightspeed_1_3_descriptor));
1536 else
1537 rdcat(rdesc, &rsize, kbd_descriptor, sizeof(kbd_descriptor));
1538 }
1539
1540 if (djdev->reports_supported & STD_MOUSE) {
1541 dbg_hid("%s: sending a mouse descriptor, reports_supported: %llx\n",
1542 __func__, djdev->reports_supported);
1543 if (djdev->dj_receiver_dev->type == recvr_type_gaming_hidpp ||
1544 djdev->dj_receiver_dev->type == recvr_type_mouse_only)
1545 rdcat(rdesc, &rsize, mse_high_res_descriptor,
1546 sizeof(mse_high_res_descriptor));
1547 else if (djdev->dj_receiver_dev->type == recvr_type_gaming_hidpp_ls_1_3)
1548 rdcat(rdesc, &rsize, mse_high_res_ls_1_3_descriptor,
1549 sizeof(mse_high_res_ls_1_3_descriptor));
1550 else if (djdev->dj_receiver_dev->type == recvr_type_27mhz)
1551 rdcat(rdesc, &rsize, mse_27mhz_descriptor,
1552 sizeof(mse_27mhz_descriptor));
1553 else if (recvr_type_is_bluetooth(djdev->dj_receiver_dev->type))
1554 rdcat(rdesc, &rsize, mse_bluetooth_descriptor,
1555 sizeof(mse_bluetooth_descriptor));
1556 else
1557 rdcat(rdesc, &rsize, mse_descriptor,
1558 sizeof(mse_descriptor));
1559 }
1560
1561 if (djdev->reports_supported & KBD_MOUSE) {
1562 dbg_hid("%s: sending a kbd-mouse descriptor, reports_supported: %llx\n",
1563 __func__, djdev->reports_supported);
1564 rdcat(rdesc, &rsize, mse5_bluetooth_descriptor,
1565 sizeof(mse5_bluetooth_descriptor));
1566 }
1567
1568 if (djdev->reports_supported & MULTIMEDIA) {
1569 dbg_hid("%s: sending a multimedia report descriptor: %llx\n",
1570 __func__, djdev->reports_supported);
1571 rdcat(rdesc, &rsize, consumer_descriptor, sizeof(consumer_descriptor));
1572 }
1573
1574 if (djdev->reports_supported & POWER_KEYS) {
1575 dbg_hid("%s: sending a power keys report descriptor: %llx\n",
1576 __func__, djdev->reports_supported);
1577 rdcat(rdesc, &rsize, syscontrol_descriptor, sizeof(syscontrol_descriptor));
1578 }
1579
1580 if (djdev->reports_supported & MEDIA_CENTER) {
1581 dbg_hid("%s: sending a media center report descriptor: %llx\n",
1582 __func__, djdev->reports_supported);
1583 rdcat(rdesc, &rsize, media_descriptor, sizeof(media_descriptor));
1584 }
1585
1586 if (djdev->reports_supported & KBD_LEDS) {
1587 dbg_hid("%s: need to send kbd leds report descriptor: %llx\n",
1588 __func__, djdev->reports_supported);
1589 }
1590
1591 if (djdev->reports_supported & HIDPP) {
1592 dbg_hid("%s: sending a HID++ descriptor, reports_supported: %llx\n",
1593 __func__, djdev->reports_supported);
1594 rdcat(rdesc, &rsize, hidpp_descriptor,
1595 sizeof(hidpp_descriptor));
1596 }
1597
1598 retval = hid_parse_report(hid, rdesc, rsize);
1599 kfree(rdesc);
1600
1601 return retval;
1602 }
1603
logi_dj_ll_start(struct hid_device * hid)1604 static int logi_dj_ll_start(struct hid_device *hid)
1605 {
1606 dbg_hid("%s\n", __func__);
1607 return 0;
1608 }
1609
logi_dj_ll_stop(struct hid_device * hid)1610 static void logi_dj_ll_stop(struct hid_device *hid)
1611 {
1612 dbg_hid("%s\n", __func__);
1613 }
1614
logi_dj_ll_may_wakeup(struct hid_device * hid)1615 static bool logi_dj_ll_may_wakeup(struct hid_device *hid)
1616 {
1617 struct dj_device *djdev = hid->driver_data;
1618 struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev;
1619
1620 return hid_hw_may_wakeup(djrcv_dev->hidpp);
1621 }
1622
1623 static const struct hid_ll_driver logi_dj_ll_driver = {
1624 .parse = logi_dj_ll_parse,
1625 .start = logi_dj_ll_start,
1626 .stop = logi_dj_ll_stop,
1627 .open = logi_dj_ll_open,
1628 .close = logi_dj_ll_close,
1629 .raw_request = logi_dj_ll_raw_request,
1630 .may_wakeup = logi_dj_ll_may_wakeup,
1631 };
1632
logi_dj_dj_event(struct hid_device * hdev,struct hid_report * report,u8 * data,int size)1633 static int logi_dj_dj_event(struct hid_device *hdev,
1634 struct hid_report *report, u8 *data,
1635 int size)
1636 {
1637 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
1638 struct dj_report *dj_report = (struct dj_report *) data;
1639 unsigned long flags;
1640
1641 /*
1642 * Here we receive all data coming from iface 2, there are 3 cases:
1643 *
1644 * 1) Data is intended for this driver i. e. data contains arrival,
1645 * departure, etc notifications, in which case we queue them for delayed
1646 * processing by the work queue. We return 1 to hid-core as no further
1647 * processing is required from it.
1648 *
1649 * 2) Data informs a connection change, if the change means rf link
1650 * loss, then we must send a null report to the upper layer to discard
1651 * potentially pressed keys that may be repeated forever by the input
1652 * layer. Return 1 to hid-core as no further processing is required.
1653 *
1654 * 3) Data is an actual input event from a paired DJ device in which
1655 * case we forward it to the correct hid device (via hid_input_report()
1656 * ) and return 1 so hid-core does not anything else with it.
1657 */
1658
1659 if ((dj_report->device_index < DJ_DEVICE_INDEX_MIN) ||
1660 (dj_report->device_index > DJ_DEVICE_INDEX_MAX)) {
1661 /*
1662 * Device index is wrong, bail out.
1663 * This driver can ignore safely the receiver notifications,
1664 * so ignore those reports too.
1665 */
1666 if (dj_report->device_index != DJ_RECEIVER_INDEX)
1667 hid_err(hdev, "%s: invalid receiver index:%d\n",
1668 __func__, dj_report->device_index);
1669 return false;
1670 }
1671
1672 spin_lock_irqsave(&djrcv_dev->lock, flags);
1673
1674 if (!djrcv_dev->paired_dj_devices[dj_report->device_index]) {
1675 /* received an event for an unknown device, bail out */
1676 logi_dj_recv_queue_notification(djrcv_dev, dj_report);
1677 goto out;
1678 }
1679
1680 switch (dj_report->report_type) {
1681 case REPORT_TYPE_NOTIF_DEVICE_PAIRED:
1682 /* pairing notifications are handled above the switch */
1683 break;
1684 case REPORT_TYPE_NOTIF_DEVICE_UNPAIRED:
1685 logi_dj_recv_queue_notification(djrcv_dev, dj_report);
1686 break;
1687 case REPORT_TYPE_NOTIF_CONNECTION_STATUS:
1688 if (dj_report->report_params[CONNECTION_STATUS_PARAM_STATUS] ==
1689 STATUS_LINKLOSS) {
1690 logi_dj_recv_forward_null_report(djrcv_dev, dj_report);
1691 }
1692 break;
1693 default:
1694 logi_dj_recv_forward_dj(djrcv_dev, dj_report);
1695 }
1696
1697 out:
1698 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
1699
1700 return true;
1701 }
1702
logi_dj_hidpp_event(struct hid_device * hdev,struct hid_report * report,u8 * data,int size)1703 static int logi_dj_hidpp_event(struct hid_device *hdev,
1704 struct hid_report *report, u8 *data,
1705 int size)
1706 {
1707 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
1708 struct hidpp_event *hidpp_report = (struct hidpp_event *) data;
1709 struct dj_device *dj_dev;
1710 unsigned long flags;
1711 u8 device_index = hidpp_report->device_index;
1712
1713 if (device_index == HIDPP_RECEIVER_INDEX) {
1714 /* special case were the device wants to know its unifying
1715 * name */
1716 if (size == HIDPP_REPORT_LONG_LENGTH &&
1717 !memcmp(data, unifying_pairing_answer,
1718 sizeof(unifying_pairing_answer)))
1719 device_index = (data[4] & 0x0F) + 1;
1720 else
1721 return false;
1722 }
1723
1724 /*
1725 * Data is from the HID++ collection, in this case, we forward the
1726 * data to the corresponding child dj device and return 0 to hid-core
1727 * so he data also goes to the hidraw device of the receiver. This
1728 * allows a user space application to implement the full HID++ routing
1729 * via the receiver.
1730 */
1731
1732 if ((device_index < DJ_DEVICE_INDEX_MIN) ||
1733 (device_index > DJ_DEVICE_INDEX_MAX)) {
1734 /*
1735 * Device index is wrong, bail out.
1736 * This driver can ignore safely the receiver notifications,
1737 * so ignore those reports too.
1738 */
1739 hid_err(hdev, "%s: invalid device index:%d\n", __func__,
1740 hidpp_report->device_index);
1741 return false;
1742 }
1743
1744 spin_lock_irqsave(&djrcv_dev->lock, flags);
1745
1746 dj_dev = djrcv_dev->paired_dj_devices[device_index];
1747
1748 /*
1749 * With 27 MHz receivers, we do not get an explicit unpair event,
1750 * remove the old device if the user has paired a *different* device.
1751 */
1752 if (djrcv_dev->type == recvr_type_27mhz && dj_dev &&
1753 hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED &&
1754 hidpp_report->params[HIDPP_PARAM_PROTO_TYPE] == 0x02 &&
1755 hidpp_report->params[HIDPP_PARAM_27MHZ_DEVID] !=
1756 dj_dev->hdev->product) {
1757 struct dj_workitem workitem = {
1758 .device_index = hidpp_report->device_index,
1759 .type = WORKITEM_TYPE_UNPAIRED,
1760 };
1761 kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
1762 /* logi_hidpp_recv_queue_notif will queue the work */
1763 dj_dev = NULL;
1764 }
1765
1766 if (dj_dev) {
1767 logi_dj_recv_forward_report(dj_dev, data, size);
1768 } else {
1769 if (hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED)
1770 logi_hidpp_recv_queue_notif(hdev, hidpp_report);
1771 else
1772 logi_dj_recv_queue_unknown_work(djrcv_dev);
1773 }
1774
1775 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
1776
1777 return false;
1778 }
1779
logi_dj_raw_event(struct hid_device * hdev,struct hid_report * report,u8 * data,int size)1780 static int logi_dj_raw_event(struct hid_device *hdev,
1781 struct hid_report *report, u8 *data,
1782 int size)
1783 {
1784 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
1785 dbg_hid("%s, size:%d\n", __func__, size);
1786
1787 if (!djrcv_dev)
1788 return 0;
1789
1790 if (!hdev->report_enum[HID_INPUT_REPORT].numbered) {
1791
1792 if (djrcv_dev->unnumbered_application == HID_GD_KEYBOARD) {
1793 /*
1794 * For the keyboard, we can reuse the same report by
1795 * using the second byte which is constant in the USB
1796 * HID report descriptor.
1797 */
1798 data[1] = data[0];
1799 data[0] = REPORT_TYPE_KEYBOARD;
1800
1801 logi_dj_recv_forward_input_report(hdev, data, size);
1802
1803 /* restore previous state */
1804 data[0] = data[1];
1805 data[1] = 0;
1806 }
1807 /*
1808 * Mouse-only receivers send unnumbered mouse data. The 27 MHz
1809 * receiver uses 6 byte packets, the nano receiver 8 bytes,
1810 * the lightspeed receiver (Pro X Superlight) 13 bytes.
1811 */
1812 if (djrcv_dev->unnumbered_application == HID_GD_MOUSE &&
1813 size <= 13){
1814 u8 mouse_report[14];
1815
1816 /* Prepend report id */
1817 mouse_report[0] = REPORT_TYPE_MOUSE;
1818 memcpy(mouse_report + 1, data, size);
1819 logi_dj_recv_forward_input_report(hdev, mouse_report,
1820 size + 1);
1821 }
1822
1823 return false;
1824 }
1825
1826 switch (data[0]) {
1827 case REPORT_ID_DJ_SHORT:
1828 if (size != DJREPORT_SHORT_LENGTH) {
1829 hid_err(hdev, "Short DJ report bad size (%d)", size);
1830 return false;
1831 }
1832 return logi_dj_dj_event(hdev, report, data, size);
1833 case REPORT_ID_DJ_LONG:
1834 if (size != DJREPORT_LONG_LENGTH) {
1835 hid_err(hdev, "Long DJ report bad size (%d)", size);
1836 return false;
1837 }
1838 return logi_dj_dj_event(hdev, report, data, size);
1839 case REPORT_ID_HIDPP_SHORT:
1840 if (size != HIDPP_REPORT_SHORT_LENGTH) {
1841 hid_err(hdev, "Short HID++ report bad size (%d)", size);
1842 return false;
1843 }
1844 return logi_dj_hidpp_event(hdev, report, data, size);
1845 case REPORT_ID_HIDPP_LONG:
1846 if (size != HIDPP_REPORT_LONG_LENGTH) {
1847 hid_err(hdev, "Long HID++ report bad size (%d)", size);
1848 return false;
1849 }
1850 return logi_dj_hidpp_event(hdev, report, data, size);
1851 }
1852
1853 logi_dj_recv_forward_input_report(hdev, data, size);
1854
1855 return false;
1856 }
1857
logi_dj_probe(struct hid_device * hdev,const struct hid_device_id * id)1858 static int logi_dj_probe(struct hid_device *hdev,
1859 const struct hid_device_id *id)
1860 {
1861 struct hid_report_enum *rep_enum;
1862 struct hid_report *rep;
1863 struct dj_receiver_dev *djrcv_dev;
1864 struct usb_interface *intf;
1865 unsigned int no_dj_interfaces = 0;
1866 bool has_hidpp = false;
1867 unsigned long flags;
1868 int retval;
1869
1870 /*
1871 * Call to usbhid to fetch the HID descriptors of the current
1872 * interface subsequently call to the hid/hid-core to parse the
1873 * fetched descriptors.
1874 */
1875 retval = hid_parse(hdev);
1876 if (retval) {
1877 hid_err(hdev, "%s: parse failed\n", __func__);
1878 return retval;
1879 }
1880
1881 /*
1882 * Some KVMs add an extra interface for e.g. mouse emulation. If we
1883 * treat these as logitech-dj interfaces then this causes input events
1884 * reported through this extra interface to not be reported correctly.
1885 * To avoid this, we treat these as generic-hid devices.
1886 */
1887 switch (id->driver_data) {
1888 case recvr_type_dj: no_dj_interfaces = 3; break;
1889 case recvr_type_hidpp: no_dj_interfaces = 2; break;
1890 case recvr_type_gaming_hidpp: no_dj_interfaces = 3; break;
1891 case recvr_type_gaming_hidpp_ls_1_3: no_dj_interfaces = 3; break;
1892 case recvr_type_mouse_only: no_dj_interfaces = 2; break;
1893 case recvr_type_27mhz: no_dj_interfaces = 2; break;
1894 case recvr_type_bluetooth: no_dj_interfaces = 2; break;
1895 case recvr_type_dinovo: no_dj_interfaces = 2; break;
1896 }
1897 if (hid_is_usb(hdev)) {
1898 intf = to_usb_interface(hdev->dev.parent);
1899 if (intf && intf->altsetting->desc.bInterfaceNumber >=
1900 no_dj_interfaces) {
1901 hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
1902 return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1903 }
1904 }
1905
1906 rep_enum = &hdev->report_enum[HID_INPUT_REPORT];
1907
1908 /* no input reports, bail out */
1909 if (list_empty(&rep_enum->report_list))
1910 return -ENODEV;
1911
1912 /*
1913 * Check for the HID++ application.
1914 * Note: we should theoretically check for HID++ and DJ
1915 * collections, but this will do.
1916 */
1917 list_for_each_entry(rep, &rep_enum->report_list, list) {
1918 if (rep->application == 0xff000001)
1919 has_hidpp = true;
1920 }
1921
1922 /*
1923 * Ignore interfaces without DJ/HID++ collection, they will not carry
1924 * any data, dont create any hid_device for them.
1925 */
1926 if (!has_hidpp && id->driver_data == recvr_type_dj)
1927 return -ENODEV;
1928
1929 /* get the current application attached to the node */
1930 rep = list_first_entry(&rep_enum->report_list, struct hid_report, list);
1931 djrcv_dev = dj_get_receiver_dev(hdev, id->driver_data,
1932 rep->application, has_hidpp);
1933 if (!djrcv_dev) {
1934 hid_err(hdev, "%s: dj_get_receiver_dev failed\n", __func__);
1935 return -ENOMEM;
1936 }
1937
1938 if (!rep_enum->numbered)
1939 djrcv_dev->unnumbered_application = rep->application;
1940
1941 /* Starts the usb device and connects to upper interfaces hiddev and
1942 * hidraw */
1943 retval = hid_hw_start(hdev, HID_CONNECT_HIDRAW|HID_CONNECT_HIDDEV);
1944 if (retval) {
1945 hid_err(hdev, "%s: hid_hw_start returned error\n", __func__);
1946 goto hid_hw_start_fail;
1947 }
1948
1949 if (has_hidpp) {
1950 /*
1951 * This can fail with a KVM. Ignore errors to let the probe
1952 * succeed, logi_dj_recv_queue_unknown_work will retry later.
1953 */
1954 logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
1955 }
1956
1957 /* This is enabling the polling urb on the IN endpoint */
1958 retval = hid_hw_open(hdev);
1959 if (retval < 0) {
1960 hid_err(hdev, "%s: hid_hw_open returned error:%d\n",
1961 __func__, retval);
1962 goto llopen_failed;
1963 }
1964
1965 /* Allow incoming packets to arrive: */
1966 hid_device_io_start(hdev);
1967
1968 if (has_hidpp) {
1969 spin_lock_irqsave(&djrcv_dev->lock, flags);
1970 djrcv_dev->ready = true;
1971 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
1972 /* This too can fail with a KVM, ignore errors. */
1973 logi_dj_recv_query_paired_devices(djrcv_dev);
1974 }
1975
1976 return 0;
1977
1978 llopen_failed:
1979 hid_hw_stop(hdev);
1980
1981 hid_hw_start_fail:
1982 dj_put_receiver_dev(hdev);
1983 return retval;
1984 }
1985
logi_dj_reset_resume(struct hid_device * hdev)1986 static int logi_dj_reset_resume(struct hid_device *hdev)
1987 {
1988 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
1989
1990 if (!djrcv_dev || djrcv_dev->hidpp != hdev)
1991 return 0;
1992
1993 logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
1994 return 0;
1995 }
1996
logi_dj_remove(struct hid_device * hdev)1997 static void logi_dj_remove(struct hid_device *hdev)
1998 {
1999 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
2000 struct dj_device *dj_dev;
2001 unsigned long flags;
2002 int i;
2003
2004 dbg_hid("%s\n", __func__);
2005
2006 if (!djrcv_dev)
2007 return hid_hw_stop(hdev);
2008
2009 /*
2010 * This ensures that if the work gets requeued from another
2011 * interface of the same receiver it will be a no-op.
2012 */
2013 spin_lock_irqsave(&djrcv_dev->lock, flags);
2014 djrcv_dev->ready = false;
2015 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
2016
2017 cancel_work_sync(&djrcv_dev->work);
2018
2019 hid_hw_close(hdev);
2020 hid_hw_stop(hdev);
2021
2022 /*
2023 * For proper operation we need access to all interfaces, so we destroy
2024 * the paired devices when we're unbound from any interface.
2025 *
2026 * Note we may still be bound to other interfaces, sharing the same
2027 * djrcv_dev, so we need locking here.
2028 */
2029 for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) {
2030 spin_lock_irqsave(&djrcv_dev->lock, flags);
2031 dj_dev = djrcv_dev->paired_dj_devices[i];
2032 djrcv_dev->paired_dj_devices[i] = NULL;
2033 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
2034 if (dj_dev != NULL) {
2035 hid_destroy_device(dj_dev->hdev);
2036 kfree(dj_dev);
2037 }
2038 }
2039
2040 dj_put_receiver_dev(hdev);
2041 }
2042
2043 static const struct hid_device_id logi_dj_receivers[] = {
2044 { /* Logitech unifying receiver (0xc52b) */
2045 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2046 USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER),
2047 .driver_data = recvr_type_dj},
2048 { /* Logitech unifying receiver (0xc532) */
2049 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2050 USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2),
2051 .driver_data = recvr_type_dj},
2052
2053 { /* Logitech Nano mouse only receiver (0xc52f) */
2054 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2055 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER),
2056 .driver_data = recvr_type_mouse_only},
2057 { /* Logitech Nano (non DJ) receiver (0xc534) */
2058 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2059 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2),
2060 .driver_data = recvr_type_hidpp},
2061
2062 { /* Logitech G700(s) receiver (0xc531) */
2063 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2064 USB_DEVICE_ID_LOGITECH_G700_RECEIVER),
2065 .driver_data = recvr_type_gaming_hidpp},
2066 { /* Logitech G602 receiver (0xc537) */
2067 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2068 0xc537),
2069 .driver_data = recvr_type_gaming_hidpp},
2070 { /* Logitech lightspeed receiver (0xc539) */
2071 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2072 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1),
2073 .driver_data = recvr_type_gaming_hidpp},
2074 { /* Logitech powerplay receiver (0xc53a) */
2075 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2076 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_POWERPLAY),
2077 .driver_data = recvr_type_gaming_hidpp},
2078 { /* Logitech lightspeed receiver (0xc53f) */
2079 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2080 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_1),
2081 .driver_data = recvr_type_gaming_hidpp},
2082 { /* Logitech lightspeed receiver (0xc543) */
2083 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2084 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_2),
2085 .driver_data = recvr_type_gaming_hidpp},
2086 { /* Logitech lightspeed receiver (0xc547) */
2087 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2088 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_3),
2089 .driver_data = recvr_type_gaming_hidpp_ls_1_3},
2090 { /* Logitech lightspeed receiver (0xc54d) */
2091 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2092 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_4),
2093 .driver_data = recvr_type_gaming_hidpp_ls_1_3},
2094
2095 { /* Logitech 27 MHz HID++ 1.0 receiver (0xc513) */
2096 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER),
2097 .driver_data = recvr_type_27mhz},
2098 { /* Logitech 27 MHz HID++ 1.0 receiver (0xc517) */
2099 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2100 USB_DEVICE_ID_S510_RECEIVER_2),
2101 .driver_data = recvr_type_27mhz},
2102 { /* Logitech 27 MHz HID++ 1.0 mouse-only receiver (0xc51b) */
2103 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2104 USB_DEVICE_ID_LOGITECH_27MHZ_MOUSE_RECEIVER),
2105 .driver_data = recvr_type_27mhz},
2106
2107 { /* Logitech MX5000 HID++ / bluetooth receiver keyboard intf. (0xc70e) */
2108 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2109 USB_DEVICE_ID_MX5000_RECEIVER_KBD_DEV),
2110 .driver_data = recvr_type_bluetooth},
2111 { /* Logitech MX5000 HID++ / bluetooth receiver mouse intf. (0xc70a) */
2112 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2113 USB_DEVICE_ID_MX5000_RECEIVER_MOUSE_DEV),
2114 .driver_data = recvr_type_bluetooth},
2115 { /* Logitech MX5500 HID++ / bluetooth receiver keyboard intf. (0xc71b) */
2116 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2117 USB_DEVICE_ID_MX5500_RECEIVER_KBD_DEV),
2118 .driver_data = recvr_type_bluetooth},
2119 { /* Logitech MX5500 HID++ / bluetooth receiver mouse intf. (0xc71c) */
2120 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2121 USB_DEVICE_ID_MX5500_RECEIVER_MOUSE_DEV),
2122 .driver_data = recvr_type_bluetooth},
2123
2124 { /* Logitech Dinovo Edge HID++ / bluetooth receiver keyboard intf. (0xc713) */
2125 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2126 USB_DEVICE_ID_DINOVO_EDGE_RECEIVER_KBD_DEV),
2127 .driver_data = recvr_type_dinovo},
2128 { /* Logitech Dinovo Edge HID++ / bluetooth receiver mouse intf. (0xc714) */
2129 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2130 USB_DEVICE_ID_DINOVO_EDGE_RECEIVER_MOUSE_DEV),
2131 .driver_data = recvr_type_dinovo},
2132 { /* Logitech DiNovo Mini HID++ / bluetooth receiver mouse intf. (0xc71e) */
2133 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2134 USB_DEVICE_ID_DINOVO_MINI_RECEIVER_KBD_DEV),
2135 .driver_data = recvr_type_dinovo},
2136 { /* Logitech DiNovo Mini HID++ / bluetooth receiver keyboard intf. (0xc71f) */
2137 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2138 USB_DEVICE_ID_DINOVO_MINI_RECEIVER_MOUSE_DEV),
2139 .driver_data = recvr_type_dinovo},
2140 {}
2141 };
2142
2143 MODULE_DEVICE_TABLE(hid, logi_dj_receivers);
2144
2145 static struct hid_driver logi_djreceiver_driver = {
2146 .name = "logitech-djreceiver",
2147 .id_table = logi_dj_receivers,
2148 .probe = logi_dj_probe,
2149 .remove = logi_dj_remove,
2150 .raw_event = logi_dj_raw_event,
2151 .reset_resume = pm_ptr(logi_dj_reset_resume),
2152 };
2153
2154 module_hid_driver(logi_djreceiver_driver);
2155
2156 MODULE_DESCRIPTION("HID driver for Logitech receivers");
2157 MODULE_LICENSE("GPL");
2158 MODULE_AUTHOR("Logitech");
2159 MODULE_AUTHOR("Nestor Lopez Casado");
2160 MODULE_AUTHOR("nlopezcasad@logitech.com");
2161