]> git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blame - drivers/hid/hid-logitech-dj.c
projects / mirror_ubuntu-jammy-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Drivers: hv: balloon: Disable balloon and hot-add accordingly
[mirror_ubuntu-jammy-kernel.git] / drivers / hid / hid-logitech-dj.c
CommitLineData
45051539 1// SPDX-License-Identifier: GPL-2.0-only
534a7b8e 2/*
c08ce255 3 * HID driver for Logitech receivers
534a7b8e
NLC		 4 *
5 * Copyright (c) 2011 Logitech
6 */
7
534a7b8e
NLC		 8
9
10#include <linux/device.h>
11#include <linux/hid.h>
12#include <linux/module.h>
8cb3746a 13#include <linux/kfifo.h>
82c0beb8 14#include <linux/delay.h>
da12b224 15#include <linux/usb.h> /* For to_usb_interface for kvm extra intf check */
44d27f7d 16#include <asm/unaligned.h>
534a7b8e 17#include "hid-ids.h"
8cb3746a 18
8c9d734c 19#define DJ_MAX_PAIRED_DEVICES 7
4fcad95a 20#define DJ_MAX_NUMBER_NOTIFS 8
8cb3746a
BT		 21#define DJ_RECEIVER_INDEX 0
22#define DJ_DEVICE_INDEX_MIN 1
8c9d734c 23#define DJ_DEVICE_INDEX_MAX 7
8cb3746a
BT		 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
925f0f3e
BT		 31#define REPORT_ID_HIDPP_SHORT 0x10
32#define REPORT_ID_HIDPP_LONG 0x11
3a9a2c86 33#define REPORT_ID_HIDPP_VERY_LONG 0x12
925f0f3e
BT		 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
8cb3746a
BT		 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
8cb3746a
BT		 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 */
a17dd1f2
BT		 83#define STD_KEYBOARD BIT(1)
84#define STD_MOUSE BIT(2)
85#define MULTIMEDIA BIT(3)
86#define POWER_KEYS BIT(4)
434f7709 87#define KBD_MOUSE BIT(5)
a17dd1f2
BT		 88#define MEDIA_CENTER BIT(8)
89#define KBD_LEDS BIT(14)
6d3c3f03
HG		 90/* Fake (bitnr > NUMBER_OF_HID_REPORTS) bit to track HID++ capability */
91#define HIDPP BIT_ULL(63)
8cb3746a 92
74808f91
HG		 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
c9121cf6 99#define HIDPP_PARAM_27MHZ_DEVID 0x03
74808f91
HG		 100#define HIDPP_DEVICE_TYPE_MASK GENMASK(3, 0)
101#define HIDPP_LINK_STATUS_MASK BIT(6)
f2113c30 102#define HIDPP_MANUFACTURER_MASK BIT(7)
7383354a 103#define HIDPP_27MHZ_SECURE_MASK BIT(7)
74808f91 104
de76b1d3
HG		 105#define HIDPP_DEVICE_TYPE_KEYBOARD 1
106#define HIDPP_DEVICE_TYPE_MOUSE 2
107
74808f91 108#define HIDPP_SET_REGISTER 0x80
c0340412 109#define HIDPP_GET_LONG_REGISTER 0x83
74808f91 110#define HIDPP_REG_CONNECTION_STATE 0x02
c0340412
BT		 111#define HIDPP_REG_PAIRING_INFORMATION 0xB5
112#define HIDPP_PAIRING_INFORMATION 0x20
74808f91
HG		 113#define HIDPP_FAKE_DEVICE_ARRIVAL 0x02
114
115enum recvr_type {
116 recvr_type_dj,
117 recvr_type_hidpp,
f5fb57a7 118 recvr_type_gaming_hidpp,
3ed224e2 119 recvr_type_mouse_only,
c9121cf6 120 recvr_type_27mhz,
f2113c30 121 recvr_type_bluetooth,
434f7709 122 recvr_type_dinovo,
74808f91 123};
c0340412 124
8cb3746a
BT		 125struct dj_report {
126 u8 report_id;
127 u8 device_index;
128 u8 report_type;
129 u8 report_params[DJREPORT_SHORT_LENGTH - 3];
130};
131
7bb56a5f
BT		 132struct hidpp_event {
133 u8 report_id;
134 u8 device_index;
135 u8 sub_id;
136 u8 params[HIDPP_REPORT_LONG_LENGTH - 3U];
137} __packed;
138
8cb3746a 139struct dj_receiver_dev {
a1d97ccb
HG		 140 struct hid_device *mouse;
141 struct hid_device *keyboard;
0ee75544 142 struct hid_device *hidpp;
8cb3746a
BT		 143 struct dj_device *paired_dj_devices[DJ_MAX_PAIRED_DEVICES +
144 DJ_DEVICE_INDEX_MIN];
a1d97ccb
HG		 145 struct list_head list;
146 struct kref kref;
8cb3746a
BT		 147 struct work_struct work;
148 struct kfifo notif_fifo;
b6aeedde 149 unsigned long last_query; /* in jiffies */
a1d97ccb 150 bool ready;
74808f91
HG		 151 enum recvr_type type;
152 unsigned int unnumbered_application;
8cb3746a 153 spinlock_t lock;
8cb3746a
BT		 154};
155
156struct dj_device {
157 struct hid_device *hdev;
158 struct dj_receiver_dev *dj_receiver_dev;
6d3c3f03 159 u64 reports_supported;
8cb3746a
BT		 160 u8 device_index;
161};
534a7b8e 162
4fcad95a
BT		 163#define WORKITEM_TYPE_EMPTY 0
164#define WORKITEM_TYPE_PAIRED 1
165#define WORKITEM_TYPE_UNPAIRED 2
166#define WORKITEM_TYPE_UNKNOWN 255
167
168struct dj_workitem {
169 u8 type; /* WORKITEM_TYPE_* */
170 u8 device_index;
de76b1d3 171 u8 device_type;
4fcad95a
BT		 172 u8 quad_id_msb;
173 u8 quad_id_lsb;
6d3c3f03 174 u64 reports_supported;
4fcad95a
BT		 175};
176
534a7b8e
NLC		 177/* Keyboard descriptor (1) */
178static const char kbd_descriptor[] = {
179 0x05, 0x01, /* USAGE_PAGE (generic Desktop) */
180 0x09, 0x06, /* USAGE (Keyboard) */
181 0xA1, 0x01, /* COLLECTION (Application) */
182 0x85, 0x01, /* REPORT_ID (1) */
183 0x95, 0x08, /* REPORT_COUNT (8) */
184 0x75, 0x01, /* REPORT_SIZE (1) */
185 0x15, 0x00, /* LOGICAL_MINIMUM (0) */
186 0x25, 0x01, /* LOGICAL_MAXIMUM (1) */
187 0x05, 0x07, /* USAGE_PAGE (Keyboard) */
188 0x19, 0xE0, /* USAGE_MINIMUM (Left Control) */
189 0x29, 0xE7, /* USAGE_MAXIMUM (Right GUI) */
190 0x81, 0x02, /* INPUT (Data,Var,Abs) */
534a7b8e
NLC		 191 0x95, 0x06, /* REPORT_COUNT (6) */
192 0x75, 0x08, /* REPORT_SIZE (8) */
193 0x15, 0x00, /* LOGICAL_MINIMUM (0) */
194 0x26, 0xFF, 0x00, /* LOGICAL_MAXIMUM (255) */
195 0x05, 0x07, /* USAGE_PAGE (Keyboard) */
196 0x19, 0x00, /* USAGE_MINIMUM (no event) */
197 0x2A, 0xFF, 0x00, /* USAGE_MAXIMUM (reserved) */
198 0x81, 0x00, /* INPUT (Data,Ary,Abs) */
0e40d356
BT		 199 0x85, 0x0e, /* REPORT_ID (14) */
200 0x05, 0x08, /* USAGE PAGE (LED page) */
201 0x95, 0x05, /* REPORT COUNT (5) */
202 0x75, 0x01, /* REPORT SIZE (1) */
203 0x15, 0x00, /* LOGICAL_MINIMUM (0) */
204 0x25, 0x01, /* LOGICAL_MAXIMUM (1) */
205 0x19, 0x01, /* USAGE MINIMUM (1) */
206 0x29, 0x05, /* USAGE MAXIMUM (5) */
207 0x91, 0x02, /* OUTPUT (Data, Variable, Absolute) */
208 0x95, 0x01, /* REPORT COUNT (1) */
209 0x75, 0x03, /* REPORT SIZE (3) */
210 0x91, 0x01, /* OUTPUT (Constant) */
534a7b8e
NLC		 211 0xC0
212};
213
214/* Mouse descriptor (2) */
215static const char mse_descriptor[] = {
216 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
217 0x09, 0x02, /* USAGE (Mouse) */
218 0xA1, 0x01, /* COLLECTION (Application) */
219 0x85, 0x02, /* REPORT_ID = 2 */
220 0x09, 0x01, /* USAGE (pointer) */
221 0xA1, 0x00, /* COLLECTION (physical) */
222 0x05, 0x09, /* USAGE_PAGE (buttons) */
223 0x19, 0x01, /* USAGE_MIN (1) */
224 0x29, 0x10, /* USAGE_MAX (16) */
225 0x15, 0x00, /* LOGICAL_MIN (0) */
226 0x25, 0x01, /* LOGICAL_MAX (1) */
227 0x95, 0x10, /* REPORT_COUNT (16) */
228 0x75, 0x01, /* REPORT_SIZE (1) */
229 0x81, 0x02, /* INPUT (data var abs) */
230 0x05, 0x01, /* USAGE_PAGE (generic desktop) */
231 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */
232 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */
233 0x75, 0x0C, /* REPORT_SIZE (12) */
234 0x95, 0x02, /* REPORT_COUNT (2) */
235 0x09, 0x30, /* USAGE (X) */
236 0x09, 0x31, /* USAGE (Y) */
237 0x81, 0x06, /* INPUT */
238 0x15, 0x81, /* LOGICAL_MIN (-127) */
239 0x25, 0x7F, /* LOGICAL_MAX (127) */
240 0x75, 0x08, /* REPORT_SIZE (8) */
241 0x95, 0x01, /* REPORT_COUNT (1) */
242 0x09, 0x38, /* USAGE (wheel) */
243 0x81, 0x06, /* INPUT */
244 0x05, 0x0C, /* USAGE_PAGE(consumer) */
245 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
246 0x95, 0x01, /* REPORT_COUNT (1) */
247 0x81, 0x06, /* INPUT */
248 0xC0, /* END_COLLECTION */
249 0xC0, /* END_COLLECTION */
250};
251
c9121cf6
HG		 252/* Mouse descriptor (2) for 27 MHz receiver, only 8 buttons */
253static const char mse_27mhz_descriptor[] = {
254 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
255 0x09, 0x02, /* USAGE (Mouse) */
256 0xA1, 0x01, /* COLLECTION (Application) */
257 0x85, 0x02, /* REPORT_ID = 2 */
258 0x09, 0x01, /* USAGE (pointer) */
259 0xA1, 0x00, /* COLLECTION (physical) */
260 0x05, 0x09, /* USAGE_PAGE (buttons) */
261 0x19, 0x01, /* USAGE_MIN (1) */
262 0x29, 0x08, /* USAGE_MAX (8) */
263 0x15, 0x00, /* LOGICAL_MIN (0) */
264 0x25, 0x01, /* LOGICAL_MAX (1) */
265 0x95, 0x08, /* REPORT_COUNT (8) */
266 0x75, 0x01, /* REPORT_SIZE (1) */
267 0x81, 0x02, /* INPUT (data var abs) */
268 0x05, 0x01, /* USAGE_PAGE (generic desktop) */
269 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */
270 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */
271 0x75, 0x0C, /* REPORT_SIZE (12) */
272 0x95, 0x02, /* REPORT_COUNT (2) */
273 0x09, 0x30, /* USAGE (X) */
274 0x09, 0x31, /* USAGE (Y) */
275 0x81, 0x06, /* INPUT */
276 0x15, 0x81, /* LOGICAL_MIN (-127) */
277 0x25, 0x7F, /* LOGICAL_MAX (127) */
278 0x75, 0x08, /* REPORT_SIZE (8) */
279 0x95, 0x01, /* REPORT_COUNT (1) */
280 0x09, 0x38, /* USAGE (wheel) */
281 0x81, 0x06, /* INPUT */
282 0x05, 0x0C, /* USAGE_PAGE(consumer) */
283 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
284 0x95, 0x01, /* REPORT_COUNT (1) */
285 0x81, 0x06, /* INPUT */
286 0xC0, /* END_COLLECTION */
287 0xC0, /* END_COLLECTION */
288};
289
f2113c30
HG		 290/* Mouse descriptor (2) for Bluetooth receiver, low-res hwheel, 12 buttons */
291static const char mse_bluetooth_descriptor[] = {
292 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
293 0x09, 0x02, /* USAGE (Mouse) */
294 0xA1, 0x01, /* COLLECTION (Application) */
295 0x85, 0x02, /* REPORT_ID = 2 */
296 0x09, 0x01, /* USAGE (pointer) */
297 0xA1, 0x00, /* COLLECTION (physical) */
298 0x05, 0x09, /* USAGE_PAGE (buttons) */
299 0x19, 0x01, /* USAGE_MIN (1) */
300 0x29, 0x08, /* USAGE_MAX (8) */
301 0x15, 0x00, /* LOGICAL_MIN (0) */
302 0x25, 0x01, /* LOGICAL_MAX (1) */
303 0x95, 0x08, /* REPORT_COUNT (8) */
304 0x75, 0x01, /* REPORT_SIZE (1) */
305 0x81, 0x02, /* INPUT (data var abs) */
306 0x05, 0x01, /* USAGE_PAGE (generic desktop) */
307 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */
308 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */
309 0x75, 0x0C, /* REPORT_SIZE (12) */
310 0x95, 0x02, /* REPORT_COUNT (2) */
311 0x09, 0x30, /* USAGE (X) */
312 0x09, 0x31, /* USAGE (Y) */
313 0x81, 0x06, /* INPUT */
314 0x15, 0x81, /* LOGICAL_MIN (-127) */
315 0x25, 0x7F, /* LOGICAL_MAX (127) */
316 0x75, 0x08, /* REPORT_SIZE (8) */
317 0x95, 0x01, /* REPORT_COUNT (1) */
318 0x09, 0x38, /* USAGE (wheel) */
319 0x81, 0x06, /* INPUT */
320 0x05, 0x0C, /* USAGE_PAGE(consumer) */
321 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
322 0x15, 0xF9, /* LOGICAL_MIN (-7) */
323 0x25, 0x07, /* LOGICAL_MAX (7) */
324 0x75, 0x04, /* REPORT_SIZE (4) */
325 0x95, 0x01, /* REPORT_COUNT (1) */
326 0x81, 0x06, /* INPUT */
327 0x05, 0x09, /* USAGE_PAGE (buttons) */
328 0x19, 0x09, /* USAGE_MIN (9) */
329 0x29, 0x0C, /* USAGE_MAX (12) */
330 0x15, 0x00, /* LOGICAL_MIN (0) */
331 0x25, 0x01, /* LOGICAL_MAX (1) */
332 0x75, 0x01, /* REPORT_SIZE (1) */
333 0x95, 0x04, /* REPORT_COUNT (4) */
eec231e0 334 0x81, 0x02, /* INPUT (Data,Var,Abs) */
f2113c30
HG		 335 0xC0, /* END_COLLECTION */
336 0xC0, /* END_COLLECTION */
337};
338
434f7709
HG		 339/* Mouse descriptor (5) for Bluetooth receiver, normal-res hwheel, 8 buttons */
340static const char mse5_bluetooth_descriptor[] = {
341 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
342 0x09, 0x02, /* Usage (Mouse) */
343 0xa1, 0x01, /* Collection (Application) */
344 0x85, 0x05, /* Report ID (5) */
345 0x09, 0x01, /* Usage (Pointer) */
346 0xa1, 0x00, /* Collection (Physical) */
347 0x05, 0x09, /* Usage Page (Button) */
348 0x19, 0x01, /* Usage Minimum (1) */
349 0x29, 0x08, /* Usage Maximum (8) */
350 0x15, 0x00, /* Logical Minimum (0) */
351 0x25, 0x01, /* Logical Maximum (1) */
352 0x95, 0x08, /* Report Count (8) */
353 0x75, 0x01, /* Report Size (1) */
354 0x81, 0x02, /* Input (Data,Var,Abs) */
355 0x05, 0x01, /* Usage Page (Generic Desktop) */
356 0x16, 0x01, 0xf8, /* Logical Minimum (-2047) */
357 0x26, 0xff, 0x07, /* Logical Maximum (2047) */
358 0x75, 0x0c, /* Report Size (12) */
359 0x95, 0x02, /* Report Count (2) */
360 0x09, 0x30, /* Usage (X) */
361 0x09, 0x31, /* Usage (Y) */
362 0x81, 0x06, /* Input (Data,Var,Rel) */
363 0x15, 0x81, /* Logical Minimum (-127) */
364 0x25, 0x7f, /* Logical Maximum (127) */
365 0x75, 0x08, /* Report Size (8) */
366 0x95, 0x01, /* Report Count (1) */
367 0x09, 0x38, /* Usage (Wheel) */
368 0x81, 0x06, /* Input (Data,Var,Rel) */
369 0x05, 0x0c, /* Usage Page (Consumer Devices) */
370 0x0a, 0x38, 0x02, /* Usage (AC Pan) */
371 0x15, 0x81, /* Logical Minimum (-127) */
372 0x25, 0x7f, /* Logical Maximum (127) */
373 0x75, 0x08, /* Report Size (8) */
374 0x95, 0x01, /* Report Count (1) */
375 0x81, 0x06, /* Input (Data,Var,Rel) */
376 0xc0, /* End Collection */
377 0xc0, /* End Collection */
378};
379
f5fb57a7
BT		 380/* Gaming Mouse descriptor (2) */
381static const char mse_high_res_descriptor[] = {
382 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
383 0x09, 0x02, /* USAGE (Mouse) */
384 0xA1, 0x01, /* COLLECTION (Application) */
385 0x85, 0x02, /* REPORT_ID = 2 */
386 0x09, 0x01, /* USAGE (pointer) */
387 0xA1, 0x00, /* COLLECTION (physical) */
388 0x05, 0x09, /* USAGE_PAGE (buttons) */
389 0x19, 0x01, /* USAGE_MIN (1) */
390 0x29, 0x10, /* USAGE_MAX (16) */
391 0x15, 0x00, /* LOGICAL_MIN (0) */
392 0x25, 0x01, /* LOGICAL_MAX (1) */
393 0x95, 0x10, /* REPORT_COUNT (16) */
394 0x75, 0x01, /* REPORT_SIZE (1) */
395 0x81, 0x02, /* INPUT (data var abs) */
396 0x05, 0x01, /* USAGE_PAGE (generic desktop) */
397 0x16, 0x01, 0x80, /* LOGICAL_MIN (-32767) */
398 0x26, 0xFF, 0x7F, /* LOGICAL_MAX (32767) */
399 0x75, 0x10, /* REPORT_SIZE (16) */
400 0x95, 0x02, /* REPORT_COUNT (2) */
401 0x09, 0x30, /* USAGE (X) */
402 0x09, 0x31, /* USAGE (Y) */
403 0x81, 0x06, /* INPUT */
404 0x15, 0x81, /* LOGICAL_MIN (-127) */
405 0x25, 0x7F, /* LOGICAL_MAX (127) */
406 0x75, 0x08, /* REPORT_SIZE (8) */
407 0x95, 0x01, /* REPORT_COUNT (1) */
408 0x09, 0x38, /* USAGE (wheel) */
409 0x81, 0x06, /* INPUT */
410 0x05, 0x0C, /* USAGE_PAGE(consumer) */
411 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
412 0x95, 0x01, /* REPORT_COUNT (1) */
413 0x81, 0x06, /* INPUT */
414 0xC0, /* END_COLLECTION */
415 0xC0, /* END_COLLECTION */
416};
417
534a7b8e
NLC		 418/* Consumer Control descriptor (3) */
419static const char consumer_descriptor[] = {
420 0x05, 0x0C, /* USAGE_PAGE (Consumer Devices) */
421 0x09, 0x01, /* USAGE (Consumer Control) */
422 0xA1, 0x01, /* COLLECTION (Application) */
423 0x85, 0x03, /* REPORT_ID = 3 */
424 0x75, 0x10, /* REPORT_SIZE (16) */
425 0x95, 0x02, /* REPORT_COUNT (2) */
426 0x15, 0x01, /* LOGICAL_MIN (1) */
5b6cc127 427 0x26, 0xFF, 0x02, /* LOGICAL_MAX (767) */
534a7b8e 428 0x19, 0x01, /* USAGE_MIN (1) */
5b6cc127 429 0x2A, 0xFF, 0x02, /* USAGE_MAX (767) */
534a7b8e
NLC		 430 0x81, 0x00, /* INPUT (Data Ary Abs) */
431 0xC0, /* END_COLLECTION */
432}; /* */
433
434/* System control descriptor (4) */
435static const char syscontrol_descriptor[] = {
436 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
437 0x09, 0x80, /* USAGE (System Control) */
438 0xA1, 0x01, /* COLLECTION (Application) */
439 0x85, 0x04, /* REPORT_ID = 4 */
440 0x75, 0x02, /* REPORT_SIZE (2) */
441 0x95, 0x01, /* REPORT_COUNT (1) */
442 0x15, 0x01, /* LOGICAL_MIN (1) */
443 0x25, 0x03, /* LOGICAL_MAX (3) */
444 0x09, 0x82, /* USAGE (System Sleep) */
445 0x09, 0x81, /* USAGE (System Power Down) */
446 0x09, 0x83, /* USAGE (System Wake Up) */
447 0x81, 0x60, /* INPUT (Data Ary Abs NPrf Null) */
448 0x75, 0x06, /* REPORT_SIZE (6) */
449 0x81, 0x03, /* INPUT (Cnst Var Abs) */
450 0xC0, /* END_COLLECTION */
451};
452
453/* Media descriptor (8) */
454static const char media_descriptor[] = {
455 0x06, 0xbc, 0xff, /* Usage Page 0xffbc */
456 0x09, 0x88, /* Usage 0x0088 */
457 0xa1, 0x01, /* BeginCollection */
458 0x85, 0x08, /* Report ID 8 */
459 0x19, 0x01, /* Usage Min 0x0001 */
460 0x29, 0xff, /* Usage Max 0x00ff */
461 0x15, 0x01, /* Logical Min 1 */
462 0x26, 0xff, 0x00, /* Logical Max 255 */
463 0x75, 0x08, /* Report Size 8 */
464 0x95, 0x01, /* Report Count 1 */
465 0x81, 0x00, /* Input */
466 0xc0, /* EndCollection */
467}; /* */
468
925f0f3e
BT		 469/* HIDPP descriptor */
470static const char hidpp_descriptor[] = {
471 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */
472 0x09, 0x01, /* Usage (Vendor Usage 1) */
473 0xa1, 0x01, /* Collection (Application) */
474 0x85, 0x10, /* Report ID (16) */
475 0x75, 0x08, /* Report Size (8) */
476 0x95, 0x06, /* Report Count (6) */
477 0x15, 0x00, /* Logical Minimum (0) */
478 0x26, 0xff, 0x00, /* Logical Maximum (255) */
479 0x09, 0x01, /* Usage (Vendor Usage 1) */
480 0x81, 0x00, /* Input (Data,Arr,Abs) */
481 0x09, 0x01, /* Usage (Vendor Usage 1) */
482 0x91, 0x00, /* Output (Data,Arr,Abs) */
483 0xc0, /* End Collection */
484 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */
485 0x09, 0x02, /* Usage (Vendor Usage 2) */
486 0xa1, 0x01, /* Collection (Application) */
487 0x85, 0x11, /* Report ID (17) */
488 0x75, 0x08, /* Report Size (8) */
489 0x95, 0x13, /* Report Count (19) */
490 0x15, 0x00, /* Logical Minimum (0) */
491 0x26, 0xff, 0x00, /* Logical Maximum (255) */
492 0x09, 0x02, /* Usage (Vendor Usage 2) */
493 0x81, 0x00, /* Input (Data,Arr,Abs) */
494 0x09, 0x02, /* Usage (Vendor Usage 2) */
495 0x91, 0x00, /* Output (Data,Arr,Abs) */
496 0xc0, /* End Collection */
497 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */
498 0x09, 0x04, /* Usage (Vendor Usage 0x04) */
499 0xa1, 0x01, /* Collection (Application) */
500 0x85, 0x20, /* Report ID (32) */
501 0x75, 0x08, /* Report Size (8) */
502 0x95, 0x0e, /* Report Count (14) */
503 0x15, 0x00, /* Logical Minimum (0) */
504 0x26, 0xff, 0x00, /* Logical Maximum (255) */
505 0x09, 0x41, /* Usage (Vendor Usage 0x41) */
506 0x81, 0x00, /* Input (Data,Arr,Abs) */
507 0x09, 0x41, /* Usage (Vendor Usage 0x41) */
508 0x91, 0x00, /* Output (Data,Arr,Abs) */
509 0x85, 0x21, /* Report ID (33) */
510 0x95, 0x1f, /* Report Count (31) */
511 0x15, 0x00, /* Logical Minimum (0) */
512 0x26, 0xff, 0x00, /* Logical Maximum (255) */
513 0x09, 0x42, /* Usage (Vendor Usage 0x42) */
514 0x81, 0x00, /* Input (Data,Arr,Abs) */
515 0x09, 0x42, /* Usage (Vendor Usage 0x42) */
516 0x91, 0x00, /* Output (Data,Arr,Abs) */
517 0xc0, /* End Collection */
518};
519
534a7b8e
NLC		 520/* Maximum size of all defined hid reports in bytes (including report id) */
521#define MAX_REPORT_SIZE 8
522
2a039bf5
HR		 523/* Make sure all descriptors are present here */
524#define MAX_RDESC_SIZE \
525 (sizeof(kbd_descriptor) + \
f2113c30 526 sizeof(mse_bluetooth_descriptor) + \
434f7709 527 sizeof(mse5_bluetooth_descriptor) + \
2a039bf5
HR		 528 sizeof(consumer_descriptor) + \
529 sizeof(syscontrol_descriptor) + \
925f0f3e
BT		 530 sizeof(media_descriptor) + \
531 sizeof(hidpp_descriptor))
2a039bf5 532
534a7b8e
NLC		 533/* Number of possible hid report types that can be created by this driver.
534 *
535 * Right now, RF report types have the same report types (or report id's)
536 * than the hid report created from those RF reports. In the future
537 * this doesnt have to be true.
538 *
539 * For instance, RF report type 0x01 which has a size of 8 bytes, corresponds
540 * to hid report id 0x01, this is standard keyboard. Same thing applies to mice
541 * reports and consumer control, etc. If a new RF report is created, it doesn't
542 * has to have the same report id as its corresponding hid report, so an
543 * translation may have to take place for future report types.
544 */
545#define NUMBER_OF_HID_REPORTS 32
546static const u8 hid_reportid_size_map[NUMBER_OF_HID_REPORTS] = {
547 [1] = 8, /* Standard keyboard */
548 [2] = 8, /* Standard mouse */
549 [3] = 5, /* Consumer control */
550 [4] = 2, /* System control */
551 [8] = 2, /* Media Center */
552};
553
554
555#define LOGITECH_DJ_INTERFACE_NUMBER 0x02
556
534a7b8e
NLC		 557static struct hid_ll_driver logi_dj_ll_driver;
558
c63e0e37 559static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev);
a1d97ccb
HG		 560static void delayedwork_callback(struct work_struct *work);
561
562static LIST_HEAD(dj_hdev_list);
563static DEFINE_MUTEX(dj_hdev_list_lock);
564
434f7709
HG		 565static bool recvr_type_is_bluetooth(enum recvr_type type)
566{
567 return type == recvr_type_bluetooth || type == recvr_type_dinovo;
568}
569
a1d97ccb
HG		 570/*
571 * dj/HID++ receivers are really a single logical entity, but for BIOS/Windows
572 * compatibility they have multiple USB interfaces. On HID++ receivers we need
573 * to listen for input reports on both interfaces. The functions below are used
574 * to create a single struct dj_receiver_dev for all interfaces belonging to
575 * a single USB-device / receiver.
576 */
f2113c30
HG		 577static struct dj_receiver_dev *dj_find_receiver_dev(struct hid_device *hdev,
578 enum recvr_type type)
a1d97ccb
HG		 579{
580 struct dj_receiver_dev *djrcv_dev;
f2113c30
HG		 581 char sep;
582
583 /*
584 * The bluetooth receiver contains a built-in hub and has separate
585 * USB-devices for the keyboard and mouse interfaces.
586 */
434f7709 587 sep = recvr_type_is_bluetooth(type) ? '.' : '/';
a1d97ccb
HG		 588
589 /* Try to find an already-probed interface from the same device */
590 list_for_each_entry(djrcv_dev, &dj_hdev_list, list) {
591 if (djrcv_dev->mouse &&
f2113c30 592 hid_compare_device_paths(hdev, djrcv_dev->mouse, sep)) {
a1d97ccb
HG		 593 kref_get(&djrcv_dev->kref);
594 return djrcv_dev;
595 }
596 if (djrcv_dev->keyboard &&
f2113c30 597 hid_compare_device_paths(hdev, djrcv_dev->keyboard, sep)) {
a1d97ccb
HG		 598 kref_get(&djrcv_dev->kref);
599 return djrcv_dev;
600 }
601 if (djrcv_dev->hidpp &&
f2113c30 602 hid_compare_device_paths(hdev, djrcv_dev->hidpp, sep)) {
a1d97ccb
HG		 603 kref_get(&djrcv_dev->kref);
604 return djrcv_dev;
605 }
606 }
607
608 return NULL;
609}
610
611static void dj_release_receiver_dev(struct kref *kref)
612{
613 struct dj_receiver_dev *djrcv_dev = container_of(kref, struct dj_receiver_dev, kref);
614
615 list_del(&djrcv_dev->list);
616 kfifo_free(&djrcv_dev->notif_fifo);
617 kfree(djrcv_dev);
618}
619
620static void dj_put_receiver_dev(struct hid_device *hdev)
621{
622 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
623
624 mutex_lock(&dj_hdev_list_lock);
625
626 if (djrcv_dev->mouse == hdev)
627 djrcv_dev->mouse = NULL;
628 if (djrcv_dev->keyboard == hdev)
629 djrcv_dev->keyboard = NULL;
630 if (djrcv_dev->hidpp == hdev)
631 djrcv_dev->hidpp = NULL;
632
633 kref_put(&djrcv_dev->kref, dj_release_receiver_dev);
634
635 mutex_unlock(&dj_hdev_list_lock);
636}
637
638static struct dj_receiver_dev *dj_get_receiver_dev(struct hid_device *hdev,
74808f91 639 enum recvr_type type,
a1d97ccb
HG		 640 unsigned int application,
641 bool is_hidpp)
642{
643 struct dj_receiver_dev *djrcv_dev;
644
645 mutex_lock(&dj_hdev_list_lock);
646
f2113c30 647 djrcv_dev = dj_find_receiver_dev(hdev, type);
a1d97ccb
HG		 648 if (!djrcv_dev) {
649 djrcv_dev = kzalloc(sizeof(*djrcv_dev), GFP_KERNEL);
650 if (!djrcv_dev)
651 goto out;
652
653 INIT_WORK(&djrcv_dev->work, delayedwork_callback);
654 spin_lock_init(&djrcv_dev->lock);
655 if (kfifo_alloc(&djrcv_dev->notif_fifo,
656 DJ_MAX_NUMBER_NOTIFS * sizeof(struct dj_workitem),
657 GFP_KERNEL)) {
658 kfree(djrcv_dev);
659 djrcv_dev = NULL;
660 goto out;
661 }
662 kref_init(&djrcv_dev->kref);
663 list_add_tail(&djrcv_dev->list, &dj_hdev_list);
b6aeedde 664 djrcv_dev->last_query = jiffies;
74808f91 665 djrcv_dev->type = type;
a1d97ccb
HG		 666 }
667
668 if (application == HID_GD_KEYBOARD)
669 djrcv_dev->keyboard = hdev;
670 if (application == HID_GD_MOUSE)
671 djrcv_dev->mouse = hdev;
672 if (is_hidpp)
673 djrcv_dev->hidpp = hdev;
674
675 hid_set_drvdata(hdev, djrcv_dev);
676out:
677 mutex_unlock(&dj_hdev_list_lock);
678 return djrcv_dev;
679}
534a7b8e
NLC		 680
681static void logi_dj_recv_destroy_djhid_device(struct dj_receiver_dev *djrcv_dev,
4fcad95a 682 struct dj_workitem *workitem)
534a7b8e
NLC		 683{
684 /* Called in delayed work context */
685 struct dj_device *dj_dev;
686 unsigned long flags;
687
688 spin_lock_irqsave(&djrcv_dev->lock, flags);
4fcad95a
BT		 689 dj_dev = djrcv_dev->paired_dj_devices[workitem->device_index];
690 djrcv_dev->paired_dj_devices[workitem->device_index] = NULL;
534a7b8e
NLC		 691 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
692
693 if (dj_dev != NULL) {
694 hid_destroy_device(dj_dev->hdev);
695 kfree(dj_dev);
696 } else {
0ee75544 697 hid_err(djrcv_dev->hidpp, "%s: can't destroy a NULL device\n",
534a7b8e
NLC		 698 __func__);
699 }
700}
701
702static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
4fcad95a 703 struct dj_workitem *workitem)
534a7b8e
NLC		 704{
705 /* Called in delayed work context */
0ee75544 706 struct hid_device *djrcv_hdev = djrcv_dev->hidpp;
534a7b8e
NLC		 707 struct hid_device *dj_hiddev;
708 struct dj_device *dj_dev;
4fcad95a 709 u8 device_index = workitem->device_index;
f41d766c 710 unsigned long flags;
534a7b8e
NLC		 711
712 /* Device index goes from 1 to 6, we need 3 bytes to store the
713 * semicolon, the index, and a null terminator
714 */
715 unsigned char tmpstr[3];
716
f41d766c 717 /* We are the only one ever adding a device, no need to lock */
4fcad95a 718 if (djrcv_dev->paired_dj_devices[device_index]) {
c63e0e37
NLC		 719 /* The device is already known. No need to reallocate it. */
720 dbg_hid("%s: device is already known\n", __func__);
721 return;
722 }
723
534a7b8e
NLC		 724 dj_hiddev = hid_allocate_device();
725 if (IS_ERR(dj_hiddev)) {
aca22a35 726 hid_err(djrcv_hdev, "%s: hid_allocate_dev failed\n", __func__);
534a7b8e
NLC		 727 return;
728 }
729
730 dj_hiddev->ll_driver = &logi_dj_ll_driver;
534a7b8e
NLC		 731
732 dj_hiddev->dev.parent = &djrcv_hdev->dev;
733 dj_hiddev->bus = BUS_USB;
82c0beb8 734 dj_hiddev->vendor = djrcv_hdev->vendor;
4fcad95a
BT		 735 dj_hiddev->product = (workitem->quad_id_msb << 8) |
736 workitem->quad_id_lsb;
de76b1d3
HG		 737 if (workitem->device_type) {
738 const char *type_str = "Device";
739
740 switch (workitem->device_type) {
741 case 0x01: type_str = "Keyboard"; break;
742 case 0x02: type_str = "Mouse"; break;
743 case 0x03: type_str = "Numpad"; break;
744 case 0x04: type_str = "Presenter"; break;
745 case 0x07: type_str = "Remote Control"; break;
746 case 0x08: type_str = "Trackball"; break;
747 case 0x09: type_str = "Touchpad"; break;
748 }
749 snprintf(dj_hiddev->name, sizeof(dj_hiddev->name),
750 "Logitech Wireless %s PID:%04x",
751 type_str, dj_hiddev->product);
752 } else {
753 snprintf(dj_hiddev->name, sizeof(dj_hiddev->name),
c08ce255 754 "Logitech Wireless Device PID:%04x",
de76b1d3
HG		 755 dj_hiddev->product);
756 }
d610274b 757
c9121cf6
HG		 758 if (djrcv_dev->type == recvr_type_27mhz)
759 dj_hiddev->group = HID_GROUP_LOGITECH_27MHZ_DEVICE;
760 else
761 dj_hiddev->group = HID_GROUP_LOGITECH_DJ_DEVICE;
534a7b8e 762
82c0beb8 763 memcpy(dj_hiddev->phys, djrcv_hdev->phys, sizeof(djrcv_hdev->phys));
4fcad95a 764 snprintf(tmpstr, sizeof(tmpstr), ":%d", device_index);
534a7b8e
NLC		 765 strlcat(dj_hiddev->phys, tmpstr, sizeof(dj_hiddev->phys));
766
767 dj_dev = kzalloc(sizeof(struct dj_device), GFP_KERNEL);
768
769 if (!dj_dev) {
aca22a35 770 hid_err(djrcv_hdev, "%s: failed allocating dj_dev\n", __func__);
534a7b8e
NLC		 771 goto dj_device_allocate_fail;
772 }
773
4fcad95a 774 dj_dev->reports_supported = workitem->reports_supported;
534a7b8e
NLC		 775 dj_dev->hdev = dj_hiddev;
776 dj_dev->dj_receiver_dev = djrcv_dev;
4fcad95a 777 dj_dev->device_index = device_index;
534a7b8e
NLC		 778 dj_hiddev->driver_data = dj_dev;
779
f41d766c 780 spin_lock_irqsave(&djrcv_dev->lock, flags);
4fcad95a 781 djrcv_dev->paired_dj_devices[device_index] = dj_dev;
f41d766c 782 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
534a7b8e
NLC		 783
784 if (hid_add_device(dj_hiddev)) {
aca22a35 785 hid_err(djrcv_hdev, "%s: failed adding dj_device\n", __func__);
534a7b8e
NLC		 786 goto hid_add_device_fail;
787 }
788
789 return;
790
791hid_add_device_fail:
f41d766c 792 spin_lock_irqsave(&djrcv_dev->lock, flags);
4fcad95a 793 djrcv_dev->paired_dj_devices[device_index] = NULL;
f41d766c 794 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
534a7b8e
NLC		 795 kfree(dj_dev);
796dj_device_allocate_fail:
797 hid_destroy_device(dj_hiddev);
798}
799
800static void delayedwork_callback(struct work_struct *work)
801{
802 struct dj_receiver_dev *djrcv_dev =
803 container_of(work, struct dj_receiver_dev, work);
804
4fcad95a 805 struct dj_workitem workitem;
534a7b8e
NLC		 806 unsigned long flags;
807 int count;
c63e0e37 808 int retval;
534a7b8e
NLC		 809
810 dbg_hid("%s\n", __func__);
811
812 spin_lock_irqsave(&djrcv_dev->lock, flags);
813
a1d97ccb
HG		 814 /*
815 * Since we attach to multiple interfaces, we may get scheduled before
816 * we are bound to the HID++ interface, catch this.
817 */
818 if (!djrcv_dev->ready) {
819 pr_warn("%s: delayedwork queued before hidpp interface was enumerated\n",
820 __func__);
821 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
822 return;
823 }
824
4fcad95a 825 count = kfifo_out(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
534a7b8e 826
4fcad95a 827 if (count != sizeof(workitem)) {
534a7b8e
NLC		 828 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
829 return;
830 }
831
e316aa6e
HG		 832 if (!kfifo_is_empty(&djrcv_dev->notif_fifo))
833 schedule_work(&djrcv_dev->work);
534a7b8e
NLC		 834
835 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
836
4fcad95a
BT		 837 switch (workitem.type) {
838 case WORKITEM_TYPE_PAIRED:
839 logi_dj_recv_add_djhid_device(djrcv_dev, &workitem);
534a7b8e 840 break;
4fcad95a
BT		 841 case WORKITEM_TYPE_UNPAIRED:
842 logi_dj_recv_destroy_djhid_device(djrcv_dev, &workitem);
843 break;
844 case WORKITEM_TYPE_UNKNOWN:
845 retval = logi_dj_recv_query_paired_devices(djrcv_dev);
846 if (retval) {
0ee75544 847 hid_err(djrcv_dev->hidpp, "%s: logi_dj_recv_query_paired_devices error: %d\n",
4fcad95a
BT		 848 __func__, retval);
849 }
850 break;
851 case WORKITEM_TYPE_EMPTY:
852 dbg_hid("%s: device list is empty\n", __func__);
853 break;
854 }
855}
856
b6aeedde
HG		 857/*
858 * Sometimes we receive reports for which we do not have a paired dj_device
859 * associated with the device_index or report-type to forward the report to.
860 * This means that the original "device paired" notification corresponding
861 * to the dj_device never arrived to this driver. Possible reasons for this are:
862 * 1) hid-core discards all packets coming from a device during probe().
863 * 2) if the receiver is plugged into a KVM switch then the pairing reports
864 * are only forwarded to it if the focus is on this PC.
865 * This function deals with this by re-asking the receiver for the list of
866 * connected devices in the delayed work callback.
867 * This function MUST be called with djrcv->lock held.
868 */
869static void logi_dj_recv_queue_unknown_work(struct dj_receiver_dev *djrcv_dev)
870{
871 struct dj_workitem workitem = { .type = WORKITEM_TYPE_UNKNOWN };
872
53ed4cf6 873 /* Rate limit queries done because of unhandled reports to 2/sec */
b6aeedde
HG		 874 if (time_before(jiffies, djrcv_dev->last_query + HZ / 2))
875 return;
876
877 kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
878 schedule_work(&djrcv_dev->work);
879}
880
4fcad95a
BT		 881static void logi_dj_recv_queue_notification(struct dj_receiver_dev *djrcv_dev,
882 struct dj_report *dj_report)
883{
884 /* We are called from atomic context (tasklet && djrcv->lock held) */
885 struct dj_workitem workitem = {
886 .device_index = dj_report->device_index,
887 };
888
889 switch (dj_report->report_type) {
890 case REPORT_TYPE_NOTIF_DEVICE_PAIRED:
891 workitem.type = WORKITEM_TYPE_PAIRED;
892 if (dj_report->report_params[DEVICE_PAIRED_PARAM_SPFUNCTION] &
893 SPFUNCTION_DEVICE_LIST_EMPTY) {
894 workitem.type = WORKITEM_TYPE_EMPTY;
895 break;
896 }
df561f66 897 fallthrough;
534a7b8e 898 case REPORT_TYPE_NOTIF_DEVICE_UNPAIRED:
4fcad95a
BT		 899 workitem.quad_id_msb =
900 dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_MSB];
901 workitem.quad_id_lsb =
902 dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_LSB];
903 workitem.reports_supported = get_unaligned_le32(
904 dj_report->report_params +
905 DEVICE_PAIRED_RF_REPORT_TYPE);
6d3c3f03 906 workitem.reports_supported |= HIDPP;
4fcad95a
BT		 907 if (dj_report->report_type == REPORT_TYPE_NOTIF_DEVICE_UNPAIRED)
908 workitem.type = WORKITEM_TYPE_UNPAIRED;
534a7b8e
NLC		 909 break;
910 default:
b6aeedde
HG		 911 logi_dj_recv_queue_unknown_work(djrcv_dev);
912 return;
534a7b8e 913 }
534a7b8e 914
4fcad95a 915 kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
e316aa6e 916 schedule_work(&djrcv_dev->work);
534a7b8e
NLC		 917}
918
ee5e5841
HG		 919/*
920 * Some quad/bluetooth keyboards have a builtin touchpad in this case we see
921 * only 1 paired device with a device_type of REPORT_TYPE_KEYBOARD. For the
922 * touchpad to work we must also forward mouse input reports to the dj_hiddev
923 * created for the keyboard (instead of forwarding them to a second paired
924 * device with a device_type of REPORT_TYPE_MOUSE as we normally would).
434f7709
HG		 925 *
926 * On Dinovo receivers the keyboard's touchpad and an optional paired actual
927 * mouse send separate input reports, INPUT(2) aka STD_MOUSE for the mouse
928 * and INPUT(5) aka KBD_MOUSE for the keyboard's touchpad.
929 *
930 * On MX5x00 receivers (which can also be paired with a Dinovo keyboard)
931 * INPUT(2) is used for both an optional paired actual mouse and for the
932 * keyboard's touchpad.
ee5e5841
HG		 933 */
934static const u16 kbd_builtin_touchpad_ids[] = {
935 0xb309, /* Dinovo Edge */
b4c00e79 936 0xb30c, /* Dinovo Mini */
ee5e5841
HG		 937};
938
3ed224e2
HG		 939static void logi_hidpp_dev_conn_notif_equad(struct hid_device *hdev,
940 struct hidpp_event *hidpp_report,
74808f91
HG		 941 struct dj_workitem *workitem)
942{
3ed224e2 943 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
ee5e5841 944 int i, id;
3ed224e2 945
74808f91 946 workitem->type = WORKITEM_TYPE_PAIRED;
de76b1d3
HG		 947 workitem->device_type = hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
948 HIDPP_DEVICE_TYPE_MASK;
74808f91
HG		 949 workitem->quad_id_msb = hidpp_report->params[HIDPP_PARAM_EQUAD_MSB];
950 workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_EQUAD_LSB];
de76b1d3 951 switch (workitem->device_type) {
74808f91
HG		 952 case REPORT_TYPE_KEYBOARD:
953 workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
6d3c3f03
HG		 954 POWER_KEYS | MEDIA_CENTER |
955 HIDPP;
ee5e5841
HG		 956 id = (workitem->quad_id_msb << 8) | workitem->quad_id_lsb;
957 for (i = 0; i < ARRAY_SIZE(kbd_builtin_touchpad_ids); i++) {
958 if (id == kbd_builtin_touchpad_ids[i]) {
434f7709
HG		 959 if (djrcv_dev->type == recvr_type_dinovo)
960 workitem->reports_supported |= KBD_MOUSE;
961 else
962 workitem->reports_supported |= STD_MOUSE;
ee5e5841
HG		 963 break;
964 }
965 }
74808f91
HG		 966 break;
967 case REPORT_TYPE_MOUSE:
6d3c3f03 968 workitem->reports_supported |= STD_MOUSE | HIDPP;
3ed224e2
HG		 969 if (djrcv_dev->type == recvr_type_mouse_only)
970 workitem->reports_supported |= MULTIMEDIA;
74808f91
HG		 971 break;
972 }
973}
974
c9121cf6
HG		 975static void logi_hidpp_dev_conn_notif_27mhz(struct hid_device *hdev,
976 struct hidpp_event *hidpp_report,
977 struct dj_workitem *workitem)
978{
979 workitem->type = WORKITEM_TYPE_PAIRED;
980 workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_27MHZ_DEVID];
981 switch (hidpp_report->device_index) {
982 case 1: /* Index 1 is always a mouse */
983 case 2: /* Index 2 is always a mouse */
de76b1d3 984 workitem->device_type = HIDPP_DEVICE_TYPE_MOUSE;
6d3c3f03 985 workitem->reports_supported |= STD_MOUSE | HIDPP;
c9121cf6
HG		 986 break;
987 case 3: /* Index 3 is always the keyboard */
7383354a
HG		 988 if (hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] & HIDPP_27MHZ_SECURE_MASK) {
989 hid_info(hdev, "Keyboard connection is encrypted\n");
990 } else {
991 hid_warn(hdev, "Keyboard events are send over the air in plain-text / unencrypted\n");
992 hid_warn(hdev, "See: https://gitlab.freedesktop.org/jwrdegoede/logitech-27mhz-keyboard-encryption-setup/\n");
993 }
994 fallthrough;
c9121cf6 995 case 4: /* Index 4 is used for an optional separate numpad */
de76b1d3 996 workitem->device_type = HIDPP_DEVICE_TYPE_KEYBOARD;
c9121cf6 997 workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
6d3c3f03 998 POWER_KEYS | HIDPP;
c9121cf6
HG		 999 break;
1000 default:
1001 hid_warn(hdev, "%s: unexpected device-index %d", __func__,
1002 hidpp_report->device_index);
1003 }
1004}
1005
74808f91
HG		 1006static void logi_hidpp_recv_queue_notif(struct hid_device *hdev,
1007 struct hidpp_event *hidpp_report)
1008{
1009 /* We are called from atomic context (tasklet && djrcv->lock held) */
1010 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
1011 const char *device_type = "UNKNOWN";
1012 struct dj_workitem workitem = {
1013 .type = WORKITEM_TYPE_EMPTY,
1014 .device_index = hidpp_report->device_index,
1015 };
1016
1017 switch (hidpp_report->params[HIDPP_PARAM_PROTO_TYPE]) {
1018 case 0x01:
1019 device_type = "Bluetooth";
f2113c30 1020 /* Bluetooth connect packet contents is the same as (e)QUAD */
3ed224e2 1021 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
f2113c30
HG		 1022 if (!(hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
1023 HIDPP_MANUFACTURER_MASK)) {
1024 hid_info(hdev, "Non Logitech device connected on slot %d\n",
1025 hidpp_report->device_index);
1026 workitem.reports_supported &= ~HIDPP;
1027 }
74808f91
HG		 1028 break;
1029 case 0x02:
1030 device_type = "27 Mhz";
c9121cf6 1031 logi_hidpp_dev_conn_notif_27mhz(hdev, hidpp_report, &workitem);
74808f91
HG		 1032 break;
1033 case 0x03:
1034 device_type = "QUAD or eQUAD";
3ed224e2 1035 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
74808f91
HG		 1036 break;
1037 case 0x04:
1038 device_type = "eQUAD step 4 DJ";
3ed224e2 1039 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
74808f91
HG		 1040 break;
1041 case 0x05:
1042 device_type = "DFU Lite";
1043 break;
1044 case 0x06:
1045 device_type = "eQUAD step 4 Lite";
3ed224e2 1046 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
74808f91
HG		 1047 break;
1048 case 0x07:
1049 device_type = "eQUAD step 4 Gaming";
992ff2cc 1050 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
ef07c116 1051 workitem.reports_supported |= STD_KEYBOARD;
74808f91
HG		 1052 break;
1053 case 0x08:
1054 device_type = "eQUAD step 4 for gamepads";
1055 break;
1056 case 0x0a:
1057 device_type = "eQUAD nano Lite";
3ed224e2 1058 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
74808f91
HG		 1059 break;
1060 case 0x0c:
5722f338
FL		 1061 device_type = "eQUAD Lightspeed 1";
1062 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
1063 workitem.reports_supported |= STD_KEYBOARD;
1064 break;
1065 case 0x0d:
fab3a956
FL		 1066 device_type = "eQUAD Lightspeed 1.1";
1067 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
1068 workitem.reports_supported |= STD_KEYBOARD;
1069 break;
1070 case 0x0f:
0298038e 1071 case 0x11:
fab3a956 1072 device_type = "eQUAD Lightspeed 1.2";
3ed224e2 1073 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
f5fb57a7 1074 workitem.reports_supported |= STD_KEYBOARD;
74808f91
HG		 1075 break;
1076 }
1077
8c9d734c
FL		 1078 /* custom receiver device (eg. powerplay) */
1079 if (hidpp_report->device_index == 7) {
1080 workitem.reports_supported |= HIDPP;
1081 }
1082
74808f91
HG		 1083 if (workitem.type == WORKITEM_TYPE_EMPTY) {
1084 hid_warn(hdev,
1085 "unusable device of type %s (0x%02x) connected on slot %d",
1086 device_type,
1087 hidpp_report->params[HIDPP_PARAM_PROTO_TYPE],
1088 hidpp_report->device_index);
1089 return;
1090 }
1091
1092 hid_info(hdev, "device of type %s (0x%02x) connected on slot %d",
1093 device_type, hidpp_report->params[HIDPP_PARAM_PROTO_TYPE],
1094 hidpp_report->device_index);
1095
74808f91 1096 kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
e316aa6e 1097 schedule_work(&djrcv_dev->work);
74808f91
HG		 1098}
1099
534a7b8e
NLC		 1100static void logi_dj_recv_forward_null_report(struct dj_receiver_dev *djrcv_dev,
1101 struct dj_report *dj_report)
1102{
1103 /* We are called from atomic context (tasklet && djrcv->lock held) */
1104 unsigned int i;
1105 u8 reportbuffer[MAX_REPORT_SIZE];
1106 struct dj_device *djdev;
1107
1108 djdev = djrcv_dev->paired_dj_devices[dj_report->device_index];
1109
534a7b8e
NLC		 1110 memset(reportbuffer, 0, sizeof(reportbuffer));
1111
1112 for (i = 0; i < NUMBER_OF_HID_REPORTS; i++) {
1113 if (djdev->reports_supported & (1 << i)) {
1114 reportbuffer[0] = i;
1115 if (hid_input_report(djdev->hdev,
1116 HID_INPUT_REPORT,
1117 reportbuffer,
1118 hid_reportid_size_map[i], 1)) {
1119 dbg_hid("hid_input_report error sending null "
1120 "report\n");
1121 }
1122 }
1123 }
1124}
1125
83898234
BT		 1126static void logi_dj_recv_forward_dj(struct dj_receiver_dev *djrcv_dev,
1127 struct dj_report *dj_report)
534a7b8e
NLC		 1128{
1129 /* We are called from atomic context (tasklet && djrcv->lock held) */
1130 struct dj_device *dj_device;
1131
1132 dj_device = djrcv_dev->paired_dj_devices[dj_report->device_index];
1133
534a7b8e
NLC		 1134 if ((dj_report->report_type > ARRAY_SIZE(hid_reportid_size_map) - 1) ||
1135 (hid_reportid_size_map[dj_report->report_type] == 0)) {
1136 dbg_hid("invalid report type:%x\n", dj_report->report_type);
1137 return;
1138 }
1139
1140 if (hid_input_report(dj_device->hdev,
1141 HID_INPUT_REPORT, &dj_report->report_type,
1142 hid_reportid_size_map[dj_report->report_type], 1)) {
1143 dbg_hid("hid_input_report error\n");
1144 }
1145}
1146
83898234
BT		 1147static void logi_dj_recv_forward_report(struct dj_device *dj_dev, u8 *data,
1148 int size)
925f0f3e
BT		 1149{
1150 /* We are called from atomic context (tasklet && djrcv->lock held) */
1151 if (hid_input_report(dj_dev->hdev, HID_INPUT_REPORT, data, size, 1))
1152 dbg_hid("hid_input_report error\n");
1153}
534a7b8e 1154
74808f91
HG		 1155static void logi_dj_recv_forward_input_report(struct hid_device *hdev,
1156 u8 *data, int size)
1157{
1158 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
1159 struct dj_device *dj_dev;
1160 unsigned long flags;
1161 u8 report = data[0];
1162 int i;
1163
1164 if (report > REPORT_TYPE_RFREPORT_LAST) {
640d4ea8 1165 hid_err(hdev, "Unexpected input report number %d\n", report);
74808f91
HG		 1166 return;
1167 }
1168
1169 spin_lock_irqsave(&djrcv_dev->lock, flags);
1170 for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) {
1171 dj_dev = djrcv_dev->paired_dj_devices[i];
1172 if (dj_dev && (dj_dev->reports_supported & BIT(report))) {
1173 logi_dj_recv_forward_report(dj_dev, data, size);
1174 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
1175 return;
1176 }
1177 }
1178
1179 logi_dj_recv_queue_unknown_work(djrcv_dev);
1180 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
1181
1182 dbg_hid("No dj-devs handling input report number %d\n", report);
1183}
1184
534a7b8e
NLC		 1185static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev,
1186 struct dj_report *dj_report)
1187{
0ee75544 1188 struct hid_device *hdev = djrcv_dev->hidpp;
dcd9006b
BT		 1189 struct hid_report *report;
1190 struct hid_report_enum *output_report_enum;
1191 u8 *data = (u8 *)(&dj_report->device_index);
297502ab 1192 unsigned int i;
534a7b8e 1193
dcd9006b
BT		 1194 output_report_enum = &hdev->report_enum[HID_OUTPUT_REPORT];
1195 report = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT];
1196
1197 if (!report) {
aca22a35 1198 hid_err(hdev, "%s: unable to find dj report\n", __func__);
534a7b8e
NLC		 1199 return -ENODEV;
1200 }
1201
297502ab 1202 for (i = 0; i < DJREPORT_SHORT_LENGTH - 1; i++)
dcd9006b
BT		 1203 report->field[0]->value[i] = data[i];
1204
83a44ac8 1205 hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
534a7b8e 1206
dcd9006b 1207 return 0;
534a7b8e
NLC		 1208}
1209
74808f91
HG		 1210static int logi_dj_recv_query_hidpp_devices(struct dj_receiver_dev *djrcv_dev)
1211{
39d21e7e
CIK		 1212 static const u8 template[] = {
1213 REPORT_ID_HIDPP_SHORT,
1214 HIDPP_RECEIVER_INDEX,
1215 HIDPP_SET_REGISTER,
1216 HIDPP_REG_CONNECTION_STATE,
1217 HIDPP_FAKE_DEVICE_ARRIVAL,
1218 0x00, 0x00
1219 };
74808f91
HG		 1220 u8 *hidpp_report;
1221 int retval;
1222
1223 hidpp_report = kmemdup(template, sizeof(template), GFP_KERNEL);
1224 if (!hidpp_report)
1225 return -ENOMEM;
1226
1227 retval = hid_hw_raw_request(djrcv_dev->hidpp,
1228 REPORT_ID_HIDPP_SHORT,
1229 hidpp_report, sizeof(template),
1230 HID_OUTPUT_REPORT,
1231 HID_REQ_SET_REPORT);
1232
1233 kfree(hidpp_report);
6fb08f1a 1234 return (retval < 0) ? retval : 0;
74808f91
HG		 1235}
1236
534a7b8e
NLC		 1237static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev)
1238{
d8dc3494
MD		 1239 struct dj_report *dj_report;
1240 int retval;
534a7b8e 1241
b6aeedde
HG		 1242 djrcv_dev->last_query = jiffies;
1243
74808f91
HG		 1244 if (djrcv_dev->type != recvr_type_dj)
1245 return logi_dj_recv_query_hidpp_devices(djrcv_dev);
1246
8a55ade7 1247 dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL);
d8dc3494
MD		 1248 if (!dj_report)
1249 return -ENOMEM;
1250 dj_report->report_id = REPORT_ID_DJ_SHORT;
7f02bb62 1251 dj_report->device_index = HIDPP_RECEIVER_INDEX;
d8dc3494
MD		 1252 dj_report->report_type = REPORT_TYPE_CMD_GET_PAIRED_DEVICES;
1253 retval = logi_dj_recv_send_report(djrcv_dev, dj_report);
1254 kfree(dj_report);
1255 return retval;
534a7b8e
NLC		 1256}
1257
c63e0e37 1258
534a7b8e
NLC		 1259static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev,
1260 unsigned timeout)
1261{
0ee75544 1262 struct hid_device *hdev = djrcv_dev->hidpp;
d8dc3494 1263 struct dj_report *dj_report;
6a9ddc89 1264 u8 *buf;
74808f91 1265 int retval = 0;
534a7b8e 1266
8a55ade7 1267 dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL);
d8dc3494
MD		 1268 if (!dj_report)
1269 return -ENOMEM;
42c22dbf 1270
74808f91
HG		 1271 if (djrcv_dev->type == recvr_type_dj) {
1272 dj_report->report_id = REPORT_ID_DJ_SHORT;
7f02bb62 1273 dj_report->device_index = HIDPP_RECEIVER_INDEX;
74808f91
HG		 1274 dj_report->report_type = REPORT_TYPE_CMD_SWITCH;
1275 dj_report->report_params[CMD_SWITCH_PARAM_DEVBITFIELD] = 0x3F;
1276 dj_report->report_params[CMD_SWITCH_PARAM_TIMEOUT_SECONDS] =
1277 (u8)timeout;
1278
1279 retval = logi_dj_recv_send_report(djrcv_dev, dj_report);
1280
1281 /*
1282 * Ugly sleep to work around a USB 3.0 bug when the receiver is
1283 * still processing the "switch-to-dj" command while we send an
1284 * other command.
1285 * 50 msec should gives enough time to the receiver to be ready.
1286 */
1287 msleep(50);
1288 }
42c22dbf 1289
6a9ddc89
BT		 1290 /*
1291 * Magical bits to set up hidpp notifications when the dj devices
1292 * are connected/disconnected.
1293 *
1294 * We can reuse dj_report because HIDPP_REPORT_SHORT_LENGTH is smaller
1295 * than DJREPORT_SHORT_LENGTH.
1296 */
1297 buf = (u8 *)dj_report;
1298
1299 memset(buf, 0, HIDPP_REPORT_SHORT_LENGTH);
1300
1301 buf[0] = REPORT_ID_HIDPP_SHORT;
7f02bb62 1302 buf[1] = HIDPP_RECEIVER_INDEX;
6a9ddc89
BT		 1303 buf[2] = 0x80;
1304 buf[3] = 0x00;
1305 buf[4] = 0x00;
1306 buf[5] = 0x09;
1307 buf[6] = 0x00;
1308
1309 hid_hw_raw_request(hdev, REPORT_ID_HIDPP_SHORT, buf,
1310 HIDPP_REPORT_SHORT_LENGTH, HID_OUTPUT_REPORT,
1311 HID_REQ_SET_REPORT);
1312
1313 kfree(dj_report);
d8dc3494 1314 return retval;
534a7b8e
NLC		 1315}
1316
1317
1318static int logi_dj_ll_open(struct hid_device *hid)
1319{
aca22a35 1320 dbg_hid("%s: %s\n", __func__, hid->phys);
534a7b8e
NLC		 1321 return 0;
1322
1323}
1324
1325static void logi_dj_ll_close(struct hid_device *hid)
1326{
aca22a35 1327 dbg_hid("%s: %s\n", __func__, hid->phys);
534a7b8e
NLC		 1328}
1329
8dba3026
BT		 1330/*
1331 * Register 0xB5 is "pairing information". It is solely intended for the
1332 * receiver, so do not overwrite the device index.
1333 */
c0340412
BT		 1334static u8 unifying_pairing_query[] = { REPORT_ID_HIDPP_SHORT,
1335 HIDPP_RECEIVER_INDEX,
1336 HIDPP_GET_LONG_REGISTER,
1337 HIDPP_REG_PAIRING_INFORMATION };
1338static u8 unifying_pairing_answer[] = { REPORT_ID_HIDPP_LONG,
1339 HIDPP_RECEIVER_INDEX,
1340 HIDPP_GET_LONG_REGISTER,
1341 HIDPP_REG_PAIRING_INFORMATION };
33797820 1342
bd27e202
BT		 1343static int logi_dj_ll_raw_request(struct hid_device *hid,
1344 unsigned char reportnum, __u8 *buf,
1345 size_t count, unsigned char report_type,
1346 int reqtype)
534a7b8e 1347{
0e40d356
BT		 1348 struct dj_device *djdev = hid->driver_data;
1349 struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev;
1350 u8 *out_buf;
1351 int ret;
534a7b8e 1352
925f0f3e 1353 if ((buf[0] == REPORT_ID_HIDPP_SHORT) ||
3a9a2c86
HG		 1354 (buf[0] == REPORT_ID_HIDPP_LONG) ||
1355 (buf[0] == REPORT_ID_HIDPP_VERY_LONG)) {
925f0f3e
BT		 1356 if (count < 2)
1357 return -EINVAL;
1358
33797820
BT		 1359 /* special case where we should not overwrite
1360 * the device_index */
8dba3026
BT		 1361 if (count == 7 && !memcmp(buf, unifying_pairing_query,
1362 sizeof(unifying_pairing_query)))
1363 buf[4] = (buf[4] & 0xf0) | (djdev->device_index - 1);
33797820
BT		 1364 else
1365 buf[1] = djdev->device_index;
0ee75544 1366 return hid_hw_raw_request(djrcv_dev->hidpp, reportnum, buf,
925f0f3e
BT		 1367 count, report_type, reqtype);
1368 }
1369
0e40d356
BT		 1370 if (buf[0] != REPORT_TYPE_LEDS)
1371 return -EINVAL;
1372
74808f91
HG		 1373 if (djrcv_dev->type != recvr_type_dj && count >= 2) {
1374 if (!djrcv_dev->keyboard) {
1375 hid_warn(hid, "Received REPORT_TYPE_LEDS request before the keyboard interface was enumerated\n");
1376 return 0;
1377 }
1378 /* usbhid overrides the report ID and ignores the first byte */
1379 return hid_hw_raw_request(djrcv_dev->keyboard, 0, buf, count,
1380 report_type, reqtype);
1381 }
1382
0e40d356
BT		 1383 out_buf = kzalloc(DJREPORT_SHORT_LENGTH, GFP_ATOMIC);
1384 if (!out_buf)
1385 return -ENOMEM;
1386
51217e69 1387 if (count > DJREPORT_SHORT_LENGTH - 2)
0e40d356
BT		 1388 count = DJREPORT_SHORT_LENGTH - 2;
1389
1390 out_buf[0] = REPORT_ID_DJ_SHORT;
1391 out_buf[1] = djdev->device_index;
1392 memcpy(out_buf + 2, buf, count);
1393
0ee75544 1394 ret = hid_hw_raw_request(djrcv_dev->hidpp, out_buf[0], out_buf,
bd27e202 1395 DJREPORT_SHORT_LENGTH, report_type, reqtype);
0e40d356
BT		 1396
1397 kfree(out_buf);
1398 return ret;
534a7b8e
NLC		 1399}
1400
6d603326 1401static void rdcat(char *rdesc, unsigned int *rsize, const char *data, unsigned int size)
2a039bf5 1402{
6d603326 1403 memcpy(rdesc + *rsize, data, size);
2a039bf5
HR		 1404 *rsize += size;
1405}
1406
534a7b8e
NLC		 1407static int logi_dj_ll_parse(struct hid_device *hid)
1408{
1409 struct dj_device *djdev = hid->driver_data;
2a039bf5
HR		 1410 unsigned int rsize = 0;
1411 char *rdesc;
534a7b8e
NLC		 1412 int retval;
1413
1414 dbg_hid("%s\n", __func__);
1415
1416 djdev->hdev->version = 0x0111;
1417 djdev->hdev->country = 0x00;
1418
2a039bf5
HR		 1419 rdesc = kmalloc(MAX_RDESC_SIZE, GFP_KERNEL);
1420 if (!rdesc)
1421 return -ENOMEM;
1422
534a7b8e 1423 if (djdev->reports_supported & STD_KEYBOARD) {
6d3c3f03 1424 dbg_hid("%s: sending a kbd descriptor, reports_supported: %llx\n",
534a7b8e 1425 __func__, djdev->reports_supported);
6d603326 1426 rdcat(rdesc, &rsize, kbd_descriptor, sizeof(kbd_descriptor));
534a7b8e
NLC		 1427 }
1428
1429 if (djdev->reports_supported & STD_MOUSE) {
6d3c3f03
HG		 1430 dbg_hid("%s: sending a mouse descriptor, reports_supported: %llx\n",
1431 __func__, djdev->reports_supported);
3ed224e2
HG		 1432 if (djdev->dj_receiver_dev->type == recvr_type_gaming_hidpp ||
1433 djdev->dj_receiver_dev->type == recvr_type_mouse_only)
f5fb57a7
BT		 1434 rdcat(rdesc, &rsize, mse_high_res_descriptor,
1435 sizeof(mse_high_res_descriptor));
c9121cf6
HG		 1436 else if (djdev->dj_receiver_dev->type == recvr_type_27mhz)
1437 rdcat(rdesc, &rsize, mse_27mhz_descriptor,
1438 sizeof(mse_27mhz_descriptor));
434f7709 1439 else if (recvr_type_is_bluetooth(djdev->dj_receiver_dev->type))
f2113c30
HG		 1440 rdcat(rdesc, &rsize, mse_bluetooth_descriptor,
1441 sizeof(mse_bluetooth_descriptor));
f5fb57a7
BT		 1442 else
1443 rdcat(rdesc, &rsize, mse_descriptor,
1444 sizeof(mse_descriptor));
534a7b8e
NLC		 1445 }
1446
434f7709
HG		 1447 if (djdev->reports_supported & KBD_MOUSE) {
1448 dbg_hid("%s: sending a kbd-mouse descriptor, reports_supported: %llx\n",
1449 __func__, djdev->reports_supported);
1450 rdcat(rdesc, &rsize, mse5_bluetooth_descriptor,
1451 sizeof(mse5_bluetooth_descriptor));
1452 }
1453
534a7b8e 1454 if (djdev->reports_supported & MULTIMEDIA) {
6d3c3f03 1455 dbg_hid("%s: sending a multimedia report descriptor: %llx\n",
534a7b8e 1456 __func__, djdev->reports_supported);
6d603326 1457 rdcat(rdesc, &rsize, consumer_descriptor, sizeof(consumer_descriptor));
534a7b8e
NLC		 1458 }
1459
1460 if (djdev->reports_supported & POWER_KEYS) {
6d3c3f03 1461 dbg_hid("%s: sending a power keys report descriptor: %llx\n",
534a7b8e 1462 __func__, djdev->reports_supported);
6d603326 1463 rdcat(rdesc, &rsize, syscontrol_descriptor, sizeof(syscontrol_descriptor));
534a7b8e
NLC		 1464 }
1465
1466 if (djdev->reports_supported & MEDIA_CENTER) {
6d3c3f03 1467 dbg_hid("%s: sending a media center report descriptor: %llx\n",
534a7b8e 1468 __func__, djdev->reports_supported);
6d603326 1469 rdcat(rdesc, &rsize, media_descriptor, sizeof(media_descriptor));
534a7b8e
NLC		 1470 }
1471
1472 if (djdev->reports_supported & KBD_LEDS) {
6d3c3f03 1473 dbg_hid("%s: need to send kbd leds report descriptor: %llx\n",
534a7b8e
NLC		 1474 __func__, djdev->reports_supported);
1475 }
1476
6d3c3f03 1477 if (djdev->reports_supported & HIDPP) {
630dd6ea
FL		 1478 dbg_hid("%s: sending a HID++ descriptor, reports_supported: %llx\n",
1479 __func__, djdev->reports_supported);
6d3c3f03
HG		 1480 rdcat(rdesc, &rsize, hidpp_descriptor,
1481 sizeof(hidpp_descriptor));
1482 }
925f0f3e 1483
2a039bf5
HR		 1484 retval = hid_parse_report(hid, rdesc, rsize);
1485 kfree(rdesc);
1486
1487 return retval;
534a7b8e
NLC		 1488}
1489
534a7b8e
NLC		 1490static int logi_dj_ll_start(struct hid_device *hid)
1491{
1492 dbg_hid("%s\n", __func__);
1493 return 0;
1494}
1495
1496static void logi_dj_ll_stop(struct hid_device *hid)
1497{
1498 dbg_hid("%s\n", __func__);
1499}
1500
622d97cf
HG		 1501static bool logi_dj_ll_may_wakeup(struct hid_device *hid)
1502{
1503 struct dj_device *djdev = hid->driver_data;
1504 struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev;
1505
1506 return hid_hw_may_wakeup(djrcv_dev->hidpp);
1507}
534a7b8e
NLC		 1508
1509static struct hid_ll_driver logi_dj_ll_driver = {
1510 .parse = logi_dj_ll_parse,
1511 .start = logi_dj_ll_start,
1512 .stop = logi_dj_ll_stop,
1513 .open = logi_dj_ll_open,
1514 .close = logi_dj_ll_close,
bd27e202 1515 .raw_request = logi_dj_ll_raw_request,
622d97cf 1516 .may_wakeup = logi_dj_ll_may_wakeup,
534a7b8e
NLC		 1517};
1518
925f0f3e 1519static int logi_dj_dj_event(struct hid_device *hdev,
534a7b8e
NLC		 1520 struct hid_report *report, u8 *data,
1521 int size)
1522{
1523 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
1524 struct dj_report *dj_report = (struct dj_report *) data;
1525 unsigned long flags;
534a7b8e 1526
925f0f3e
BT		 1527 /*
1528 * Here we receive all data coming from iface 2, there are 3 cases:
534a7b8e 1529 *
925f0f3e
BT		 1530 * 1) Data is intended for this driver i. e. data contains arrival,
1531 * departure, etc notifications, in which case we queue them for delayed
1532 * processing by the work queue. We return 1 to hid-core as no further
1533 * processing is required from it.
534a7b8e 1534 *
925f0f3e
BT		 1535 * 2) Data informs a connection change, if the change means rf link
1536 * loss, then we must send a null report to the upper layer to discard
1537 * potentially pressed keys that may be repeated forever by the input
1538 * layer. Return 1 to hid-core as no further processing is required.
534a7b8e 1539 *
925f0f3e
BT		 1540 * 3) Data is an actual input event from a paired DJ device in which
1541 * case we forward it to the correct hid device (via hid_input_report()
1542 * ) and return 1 so hid-core does not anything else with it.
534a7b8e 1543 */
5abfe85c 1544
ad3e14d7
JK		 1545 if ((dj_report->device_index < DJ_DEVICE_INDEX_MIN) ||
1546 (dj_report->device_index > DJ_DEVICE_INDEX_MAX)) {
5abfe85c
BT		 1547 /*
1548 * Device index is wrong, bail out.
1549 * This driver can ignore safely the receiver notifications,
1550 * so ignore those reports too.
1551 */
1552 if (dj_report->device_index != DJ_RECEIVER_INDEX)
aca22a35 1553 hid_err(hdev, "%s: invalid device index:%d\n",
ad3e14d7
JK		 1554 __func__, dj_report->device_index);
1555 return false;
1556 }
534a7b8e
NLC		 1557
1558 spin_lock_irqsave(&djrcv_dev->lock, flags);
368d4e59
BT		 1559
1560 if (!djrcv_dev->paired_dj_devices[dj_report->device_index]) {
1561 /* received an event for an unknown device, bail out */
1562 logi_dj_recv_queue_notification(djrcv_dev, dj_report);
1563 goto out;
1564 }
1565
5abfe85c
BT		 1566 switch (dj_report->report_type) {
1567 case REPORT_TYPE_NOTIF_DEVICE_PAIRED:
368d4e59
BT		 1568 /* pairing notifications are handled above the switch */
1569 break;
5abfe85c
BT		 1570 case REPORT_TYPE_NOTIF_DEVICE_UNPAIRED:
1571 logi_dj_recv_queue_notification(djrcv_dev, dj_report);
1572 break;
1573 case REPORT_TYPE_NOTIF_CONNECTION_STATUS:
1574 if (dj_report->report_params[CONNECTION_STATUS_PARAM_STATUS] ==
1575 STATUS_LINKLOSS) {
1576 logi_dj_recv_forward_null_report(djrcv_dev, dj_report);
534a7b8e 1577 }
5abfe85c
BT		 1578 break;
1579 default:
83898234 1580 logi_dj_recv_forward_dj(djrcv_dev, dj_report);
534a7b8e 1581 }
368d4e59
BT		 1582
1583out:
534a7b8e
NLC		 1584 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
1585
5abfe85c 1586 return true;
534a7b8e
NLC		 1587}
1588
925f0f3e
BT		 1589static int logi_dj_hidpp_event(struct hid_device *hdev,
1590 struct hid_report *report, u8 *data,
1591 int size)
1592{
1593 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
7bb56a5f 1594 struct hidpp_event *hidpp_report = (struct hidpp_event *) data;
74808f91 1595 struct dj_device *dj_dev;
925f0f3e 1596 unsigned long flags;
7bb56a5f 1597 u8 device_index = hidpp_report->device_index;
925f0f3e 1598
33797820
BT		 1599 if (device_index == HIDPP_RECEIVER_INDEX) {
1600 /* special case were the device wants to know its unifying
1601 * name */
1602 if (size == HIDPP_REPORT_LONG_LENGTH &&
8dba3026
BT		 1603 !memcmp(data, unifying_pairing_answer,
1604 sizeof(unifying_pairing_answer)))
33797820
BT		 1605 device_index = (data[4] & 0x0F) + 1;
1606 else
1607 return false;
1608 }
925f0f3e
BT		 1609
1610 /*
1611 * Data is from the HID++ collection, in this case, we forward the
1612 * data to the corresponding child dj device and return 0 to hid-core
1613 * so he data also goes to the hidraw device of the receiver. This
1614 * allows a user space application to implement the full HID++ routing
1615 * via the receiver.
1616 */
1617
1618 if ((device_index < DJ_DEVICE_INDEX_MIN) ||
1619 (device_index > DJ_DEVICE_INDEX_MAX)) {
1620 /*
1621 * Device index is wrong, bail out.
1622 * This driver can ignore safely the receiver notifications,
1623 * so ignore those reports too.
1624 */
aca22a35
HG		 1625 hid_err(hdev, "%s: invalid device index:%d\n", __func__,
1626 hidpp_report->device_index);
925f0f3e
BT		 1627 return false;
1628 }
1629
1630 spin_lock_irqsave(&djrcv_dev->lock, flags);
1631
74808f91 1632 dj_dev = djrcv_dev->paired_dj_devices[device_index];
c9121cf6
HG		 1633
1634 /*
1635 * With 27 MHz receivers, we do not get an explicit unpair event,
1636 * remove the old device if the user has paired a *different* device.
1637 */
1638 if (djrcv_dev->type == recvr_type_27mhz && dj_dev &&
1639 hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED &&
1640 hidpp_report->params[HIDPP_PARAM_PROTO_TYPE] == 0x02 &&
1641 hidpp_report->params[HIDPP_PARAM_27MHZ_DEVID] !=
1642 dj_dev->hdev->product) {
1643 struct dj_workitem workitem = {
1644 .device_index = hidpp_report->device_index,
1645 .type = WORKITEM_TYPE_UNPAIRED,
1646 };
1647 kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
1648 /* logi_hidpp_recv_queue_notif will queue the work */
1649 dj_dev = NULL;
1650 }
1651
74808f91
HG		 1652 if (dj_dev) {
1653 logi_dj_recv_forward_report(dj_dev, data, size);
1654 } else {
1655 if (hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED)
1656 logi_hidpp_recv_queue_notif(hdev, hidpp_report);
1657 else
1658 logi_dj_recv_queue_unknown_work(djrcv_dev);
1659 }
925f0f3e 1660
925f0f3e
BT		 1661 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
1662
1663 return false;
1664}
1665
1666static int logi_dj_raw_event(struct hid_device *hdev,
1667 struct hid_report *report, u8 *data,
1668 int size)
1669{
74808f91 1670 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
925f0f3e
BT		 1671 dbg_hid("%s, size:%d\n", __func__, size);
1672
da12b224
HG		 1673 if (!djrcv_dev)
1674 return 0;
1675
74808f91
HG		 1676 if (!hdev->report_enum[HID_INPUT_REPORT].numbered) {
1677
1678 if (djrcv_dev->unnumbered_application == HID_GD_KEYBOARD) {
1679 /*
1680 * For the keyboard, we can reuse the same report by
1681 * using the second byte which is constant in the USB
1682 * HID report descriptor.
1683 */
1684 data[1] = data[0];
1685 data[0] = REPORT_TYPE_KEYBOARD;
1686
1687 logi_dj_recv_forward_input_report(hdev, data, size);
1688
1689 /* restore previous state */
1690 data[0] = data[1];
1691 data[1] = 0;
1692 }
3ed224e2
HG		 1693 /*
1694 * Mouse-only receivers send unnumbered mouse data. The 27 MHz
1695 * receiver uses 6 byte packets, the nano receiver 8 bytes.
1696 */
1f944ac6 1697 if (djrcv_dev->unnumbered_application == HID_GD_MOUSE &&
3ed224e2
HG		 1698 size <= 8) {
1699 u8 mouse_report[9];
1f944ac6
HG		 1700
1701 /* Prepend report id */
1702 mouse_report[0] = REPORT_TYPE_MOUSE;
3ed224e2
HG		 1703 memcpy(mouse_report + 1, data, size);
1704 logi_dj_recv_forward_input_report(hdev, mouse_report,
1705 size + 1);
1f944ac6 1706 }
74808f91
HG		 1707
1708 return false;
1709 }
1710
925f0f3e
BT		 1711 switch (data[0]) {
1712 case REPORT_ID_DJ_SHORT:
f254ae93 1713 if (size != DJREPORT_SHORT_LENGTH) {
aca22a35 1714 hid_err(hdev, "Short DJ report bad size (%d)", size);
f254ae93
PW		 1715 return false;
1716 }
925f0f3e 1717 return logi_dj_dj_event(hdev, report, data, size);
f5fb57a7
BT		 1718 case REPORT_ID_DJ_LONG:
1719 if (size != DJREPORT_LONG_LENGTH) {
aca22a35 1720 hid_err(hdev, "Long DJ report bad size (%d)", size);
f5fb57a7
BT		 1721 return false;
1722 }
1723 return logi_dj_dj_event(hdev, report, data, size);
925f0f3e 1724 case REPORT_ID_HIDPP_SHORT:
f254ae93 1725 if (size != HIDPP_REPORT_SHORT_LENGTH) {
aca22a35 1726 hid_err(hdev, "Short HID++ report bad size (%d)", size);
f254ae93
PW		 1727 return false;
1728 }
1729 return logi_dj_hidpp_event(hdev, report, data, size);
925f0f3e 1730 case REPORT_ID_HIDPP_LONG:
f254ae93 1731 if (size != HIDPP_REPORT_LONG_LENGTH) {
aca22a35 1732 hid_err(hdev, "Long HID++ report bad size (%d)", size);
f254ae93
PW		 1733 return false;
1734 }
925f0f3e
BT		 1735 return logi_dj_hidpp_event(hdev, report, data, size);
1736 }
1737
74808f91
HG		 1738 logi_dj_recv_forward_input_report(hdev, data, size);
1739
925f0f3e
BT		 1740 return false;
1741}
1742
534a7b8e
NLC		 1743static int logi_dj_probe(struct hid_device *hdev,
1744 const struct hid_device_id *id)
1745{
82c0beb8
BT		 1746 struct hid_report_enum *rep_enum;
1747 struct hid_report *rep;
534a7b8e 1748 struct dj_receiver_dev *djrcv_dev;
da12b224
HG		 1749 struct usb_interface *intf;
1750 unsigned int no_dj_interfaces = 0;
82c0beb8 1751 bool has_hidpp = false;
a1d97ccb 1752 unsigned long flags;
534a7b8e
NLC		 1753 int retval;
1754
82c0beb8
BT		 1755 /*
1756 * Call to usbhid to fetch the HID descriptors of the current
1757 * interface subsequently call to the hid/hid-core to parse the
1758 * fetched descriptors.
1759 */
1760 retval = hid_parse(hdev);
1761 if (retval) {
aca22a35 1762 hid_err(hdev, "%s: parse failed\n", __func__);
82c0beb8
BT		 1763 return retval;
1764 }
534a7b8e 1765
da12b224
HG		 1766 /*
1767 * Some KVMs add an extra interface for e.g. mouse emulation. If we
1768 * treat these as logitech-dj interfaces then this causes input events
1769 * reported through this extra interface to not be reported correctly.
1770 * To avoid this, we treat these as generic-hid devices.
1771 */
1772 switch (id->driver_data) {
1773 case recvr_type_dj: no_dj_interfaces = 3; break;
1774 case recvr_type_hidpp: no_dj_interfaces = 2; break;
1775 case recvr_type_gaming_hidpp: no_dj_interfaces = 3; break;
3ed224e2 1776 case recvr_type_mouse_only: no_dj_interfaces = 2; break;
da12b224 1777 case recvr_type_27mhz: no_dj_interfaces = 2; break;
f2113c30 1778 case recvr_type_bluetooth: no_dj_interfaces = 2; break;
434f7709 1779 case recvr_type_dinovo: no_dj_interfaces = 2; break;
da12b224 1780 }
5f93d204 1781 if (hid_is_usb(hdev)) {
da12b224
HG		 1782 intf = to_usb_interface(hdev->dev.parent);
1783 if (intf && intf->altsetting->desc.bInterfaceNumber >=
1784 no_dj_interfaces) {
1785 hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
1786 return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1787 }
1788 }
1789
82c0beb8
BT		 1790 rep_enum = &hdev->report_enum[HID_INPUT_REPORT];
1791
74808f91
HG		 1792 /* no input reports, bail out */
1793 if (list_empty(&rep_enum->report_list))
1794 return -ENODEV;
1795
82c0beb8
BT		 1796 /*
1797 * Check for the HID++ application.
1798 * Note: we should theoretically check for HID++ and DJ
1799 * collections, but this will do.
1800 */
1801 list_for_each_entry(rep, &rep_enum->report_list, list) {
1802 if (rep->application == 0xff000001)
1803 has_hidpp = true;
534a7b8e
NLC		 1804 }
1805
82c0beb8
BT		 1806 /*
1807 * Ignore interfaces without DJ/HID++ collection, they will not carry
1808 * any data, dont create any hid_device for them.
1809 */
74808f91 1810 if (!has_hidpp && id->driver_data == recvr_type_dj)
82c0beb8
BT		 1811 return -ENODEV;
1812
a1d97ccb
HG		 1813 /* get the current application attached to the node */
1814 rep = list_first_entry(&rep_enum->report_list, struct hid_report, list);
74808f91 1815 djrcv_dev = dj_get_receiver_dev(hdev, id->driver_data,
a1d97ccb 1816 rep->application, has_hidpp);
534a7b8e 1817 if (!djrcv_dev) {
aca22a35 1818 hid_err(hdev, "%s: dj_get_receiver_dev failed\n", __func__);
534a7b8e
NLC		 1819 return -ENOMEM;
1820 }
297502ab 1821
74808f91
HG		 1822 if (!rep_enum->numbered)
1823 djrcv_dev->unnumbered_application = rep->application;
1824
534a7b8e
NLC		 1825 /* Starts the usb device and connects to upper interfaces hiddev and
1826 * hidraw */
74808f91 1827 retval = hid_hw_start(hdev, HID_CONNECT_HIDRAW|HID_CONNECT_HIDDEV);
534a7b8e 1828 if (retval) {
aca22a35 1829 hid_err(hdev, "%s: hid_hw_start returned error\n", __func__);
534a7b8e
NLC		 1830 goto hid_hw_start_fail;
1831 }
1832
74808f91
HG		 1833 if (has_hidpp) {
1834 retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
1835 if (retval < 0) {
1836 hid_err(hdev, "%s: logi_dj_recv_switch_to_dj_mode returned error:%d\n",
1837 __func__, retval);
1838 goto switch_to_dj_mode_fail;
1839 }
534a7b8e
NLC		 1840 }
1841
1842 /* This is enabling the polling urb on the IN endpoint */
ddf7540e 1843 retval = hid_hw_open(hdev);
534a7b8e 1844 if (retval < 0) {
aca22a35 1845 hid_err(hdev, "%s: hid_hw_open returned error:%d\n",
ddf7540e 1846 __func__, retval);
534a7b8e
NLC		 1847 goto llopen_failed;
1848 }
1849
a9dd22b7
AR		 1850 /* Allow incoming packets to arrive: */
1851 hid_device_io_start(hdev);
1852
74808f91
HG		 1853 if (has_hidpp) {
1854 spin_lock_irqsave(&djrcv_dev->lock, flags);
1855 djrcv_dev->ready = true;
1856 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
1857 retval = logi_dj_recv_query_paired_devices(djrcv_dev);
1858 if (retval < 0) {
1859 hid_err(hdev, "%s: logi_dj_recv_query_paired_devices error:%d\n",
1860 __func__, retval);
8ccff284
HG		 1861 /*
1862 * This can happen with a KVM, let the probe succeed,
1863 * logi_dj_recv_queue_unknown_work will retry later.
1864 */
74808f91 1865 }
534a7b8e
NLC		 1866 }
1867
8ccff284 1868 return 0;
534a7b8e
NLC		 1869
1870llopen_failed:
1871switch_to_dj_mode_fail:
1872 hid_hw_stop(hdev);
1873
1874hid_hw_start_fail:
a1d97ccb 1875 dj_put_receiver_dev(hdev);
534a7b8e 1876 return retval;
534a7b8e
NLC		 1877}
1878
1879#ifdef CONFIG_PM
1880static int logi_dj_reset_resume(struct hid_device *hdev)
1881{
1882 int retval;
1883 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
1884
da12b224 1885 if (!djrcv_dev || djrcv_dev->hidpp != hdev)
74808f91
HG		 1886 return 0;
1887
534a7b8e
NLC		 1888 retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
1889 if (retval < 0) {
aca22a35 1890 hid_err(hdev, "%s: logi_dj_recv_switch_to_dj_mode returned error:%d\n",
534a7b8e
NLC		 1891 __func__, retval);
1892 }
1893
1894 return 0;
1895}
1896#endif
1897
1898static void logi_dj_remove(struct hid_device *hdev)
1899{
1900 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
1901 struct dj_device *dj_dev;
a1d97ccb 1902 unsigned long flags;
534a7b8e
NLC		 1903 int i;
1904
1905 dbg_hid("%s\n", __func__);
1906
da12b224
HG		 1907 if (!djrcv_dev)
1908 return hid_hw_stop(hdev);
1909
a1d97ccb
HG		 1910 /*
1911 * This ensures that if the work gets requeued from another
1912 * interface of the same receiver it will be a no-op.
1913 */
1914 spin_lock_irqsave(&djrcv_dev->lock, flags);
1915 djrcv_dev->ready = false;
1916 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
1917
534a7b8e
NLC		 1918 cancel_work_sync(&djrcv_dev->work);
1919
ddf7540e 1920 hid_hw_close(hdev);
534a7b8e
NLC		 1921 hid_hw_stop(hdev);
1922
a1d97ccb
HG		 1923 /*
1924 * For proper operation we need access to all interfaces, so we destroy
1925 * the paired devices when we're unbound from any interface.
1926 *
1927 * Note we may still be bound to other interfaces, sharing the same
1928 * djrcv_dev, so we need locking here.
1929 */
844580ff 1930 for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) {
a1d97ccb 1931 spin_lock_irqsave(&djrcv_dev->lock, flags);
534a7b8e 1932 dj_dev = djrcv_dev->paired_dj_devices[i];
a1d97ccb
HG		 1933 djrcv_dev->paired_dj_devices[i] = NULL;
1934 spin_unlock_irqrestore(&djrcv_dev->lock, flags);
534a7b8e
NLC		 1935 if (dj_dev != NULL) {
1936 hid_destroy_device(dj_dev->hdev);
1937 kfree(dj_dev);
534a7b8e
NLC		 1938 }
1939 }
1940
a1d97ccb 1941 dj_put_receiver_dev(hdev);
534a7b8e
NLC		 1942}
1943
534a7b8e 1944static const struct hid_device_id logi_dj_receivers[] = {
751cb651
HG		 1945 { /* Logitech unifying receiver (0xc52b) */
1946 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
74808f91
HG		 1947 USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER),
1948 .driver_data = recvr_type_dj},
751cb651
HG		 1949 { /* Logitech unifying receiver (0xc532) */
1950 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
74808f91
HG		 1951 USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2),
1952 .driver_data = recvr_type_dj},
751cb651
HG		 1953
1954 { /* Logitech Nano mouse only receiver (0xc52f) */
74808f91
HG		 1955 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
1956 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER),
3ed224e2 1957 .driver_data = recvr_type_mouse_only},
751cb651 1958 { /* Logitech Nano (non DJ) receiver (0xc534) */
74808f91
HG		 1959 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
1960 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2),
1961 .driver_data = recvr_type_hidpp},
751cb651 1962
992ff2cc
BT		 1963 { /* Logitech G700(s) receiver (0xc531) */
1964 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
751cb651 1965 USB_DEVICE_ID_LOGITECH_G700_RECEIVER),
992ff2cc 1966 .driver_data = recvr_type_gaming_hidpp},
e400071a
FL		 1967 { /* Logitech G602 receiver (0xc537) */
1968 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
1969 0xc537),
1970 .driver_data = recvr_type_gaming_hidpp},
600ea54d 1971 { /* Logitech lightspeed receiver (0xc539) */
f5fb57a7 1972 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
5722f338
FL		 1973 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1),
1974 .driver_data = recvr_type_gaming_hidpp},
751cb651
HG		 1975 { /* Logitech powerplay receiver (0xc53a) */
1976 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
1977 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_POWERPLAY),
1978 .driver_data = recvr_type_gaming_hidpp},
5722f338
FL		 1979 { /* Logitech lightspeed receiver (0xc53f) */
1980 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
1981 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_1),
f5fb57a7 1982 .driver_data = recvr_type_gaming_hidpp},
751cb651 1983
423dfbc3
HG		 1984 { /* Logitech 27 MHz HID++ 1.0 receiver (0xc513) */
1985 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER),
1986 .driver_data = recvr_type_27mhz},
c9121cf6
HG		 1987 { /* Logitech 27 MHz HID++ 1.0 receiver (0xc517) */
1988 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
1989 USB_DEVICE_ID_S510_RECEIVER_2),
1990 .driver_data = recvr_type_27mhz},
1f944ac6
HG		 1991 { /* Logitech 27 MHz HID++ 1.0 mouse-only receiver (0xc51b) */
1992 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
1993 USB_DEVICE_ID_LOGITECH_27MHZ_MOUSE_RECEIVER),
1994 .driver_data = recvr_type_27mhz},
751cb651
HG		 1995
1996 { /* Logitech MX5000 HID++ / bluetooth receiver keyboard intf. (0xc70e) */
f2113c30 1997 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
751cb651 1998 USB_DEVICE_ID_MX5000_RECEIVER_KBD_DEV),
f2113c30 1999 .driver_data = recvr_type_bluetooth},
751cb651 2000 { /* Logitech MX5000 HID++ / bluetooth receiver mouse intf. (0xc70a) */
f2113c30 2001 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
751cb651 2002 USB_DEVICE_ID_MX5000_RECEIVER_MOUSE_DEV),
f2113c30 2003 .driver_data = recvr_type_bluetooth},
751cb651 2004 { /* Logitech MX5500 HID++ / bluetooth receiver keyboard intf. (0xc71b) */
b9a94fbe 2005 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
751cb651 2006 USB_DEVICE_ID_MX5500_RECEIVER_KBD_DEV),
b9a94fbe 2007 .driver_data = recvr_type_bluetooth},
751cb651 2008 { /* Logitech MX5500 HID++ / bluetooth receiver mouse intf. (0xc71c) */
b9a94fbe 2009 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
751cb651 2010 USB_DEVICE_ID_MX5500_RECEIVER_MOUSE_DEV),
b9a94fbe 2011 .driver_data = recvr_type_bluetooth},
434f7709
HG		 2012
2013 { /* Logitech Dinovo Edge HID++ / bluetooth receiver keyboard intf. (0xc713) */
2014 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2015 USB_DEVICE_ID_DINOVO_EDGE_RECEIVER_KBD_DEV),
2016 .driver_data = recvr_type_dinovo},
2017 { /* Logitech Dinovo Edge HID++ / bluetooth receiver mouse intf. (0xc714) */
2018 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2019 USB_DEVICE_ID_DINOVO_EDGE_RECEIVER_MOUSE_DEV),
2020 .driver_data = recvr_type_dinovo},
2021 { /* Logitech DiNovo Mini HID++ / bluetooth receiver mouse intf. (0xc71e) */
2022 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2023 USB_DEVICE_ID_DINOVO_MINI_RECEIVER_KBD_DEV),
2024 .driver_data = recvr_type_dinovo},
2025 { /* Logitech DiNovo Mini HID++ / bluetooth receiver keyboard intf. (0xc71f) */
2026 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
2027 USB_DEVICE_ID_DINOVO_MINI_RECEIVER_MOUSE_DEV),
2028 .driver_data = recvr_type_dinovo},
534a7b8e
NLC		 2029 {}
2030};
2031
2032MODULE_DEVICE_TABLE(hid, logi_dj_receivers);
2033
2034static struct hid_driver logi_djreceiver_driver = {
2035 .name = "logitech-djreceiver",
2036 .id_table = logi_dj_receivers,
2037 .probe = logi_dj_probe,
2038 .remove = logi_dj_remove,
2039 .raw_event = logi_dj_raw_event,
2040#ifdef CONFIG_PM
2041 .reset_resume = logi_dj_reset_resume,
2042#endif
2043};
2044
ab94e562 2045module_hid_driver(logi_djreceiver_driver);
534a7b8e 2046
534a7b8e
NLC		 2047MODULE_LICENSE("GPL");
2048MODULE_AUTHOR("Logitech");
2049MODULE_AUTHOR("Nestor Lopez Casado");
2050MODULE_AUTHOR("nlopezcasad@logitech.com");
Ubuntu Jammy Linux kernel mirror