projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge branch 'x86/ras' into x86/core, to fix conflicts
[deliverable/linux.git] / drivers / hid / hid-logitech-hidpp.c
CommitLineData
2f31c525
BT		 1/*
2 * HIDPP protocol for Logitech Unifying receivers
3 *
4 * Copyright (c) 2011 Logitech (c)
5 * Copyright (c) 2012-2013 Google (c)
6 * Copyright (c) 2013-2014 Red Hat Inc.
7 */
8
9/*
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the Free
12 * Software Foundation; version 2 of the License.
13 */
14
15#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
16
17#include <linux/device.h>
18#include <linux/hid.h>
19#include <linux/module.h>
20#include <linux/slab.h>
21#include <linux/sched.h>
22#include <linux/kfifo.h>
23#include <linux/input/mt.h>
24#include <asm/unaligned.h>
25#include "hid-ids.h"
26
27MODULE_LICENSE("GPL");
28MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
29MODULE_AUTHOR("Nestor Lopez Casado <nlopezcasad@logitech.com>");
30
9188dbae
BT		 31static bool disable_raw_mode;
32module_param(disable_raw_mode, bool, 0644);
33MODULE_PARM_DESC(disable_raw_mode,
34 "Disable Raw mode reporting for touchpads and keep firmware gestures.");
35
2f31c525
BT		 36#define REPORT_ID_HIDPP_SHORT 0x10
37#define REPORT_ID_HIDPP_LONG 0x11
38
39#define HIDPP_REPORT_SHORT_LENGTH 7
40#define HIDPP_REPORT_LONG_LENGTH 20
41
42#define HIDPP_QUIRK_CLASS_WTP BIT(0)
43
c39e3d5f
BT		 44/* bits 1..20 are reserved for classes */
45#define HIDPP_QUIRK_DELAYED_INIT BIT(21)
57ac86cf 46#define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS BIT(22)
c39e3d5f 47
2f31c525
BT		 48/*
49 * There are two hidpp protocols in use, the first version hidpp10 is known
50 * as register access protocol or RAP, the second version hidpp20 is known as
51 * feature access protocol or FAP
52 *
53 * Most older devices (including the Unifying usb receiver) use the RAP protocol
54 * where as most newer devices use the FAP protocol. Both protocols are
55 * compatible with the underlying transport, which could be usb, Unifiying, or
56 * bluetooth. The message lengths are defined by the hid vendor specific report
57 * descriptor for the HIDPP_SHORT report type (total message lenth 7 bytes) and
58 * the HIDPP_LONG report type (total message length 20 bytes)
59 *
60 * The RAP protocol uses both report types, whereas the FAP only uses HIDPP_LONG
61 * messages. The Unifying receiver itself responds to RAP messages (device index
62 * is 0xFF for the receiver), and all messages (short or long) with a device
63 * index between 1 and 6 are passed untouched to the corresponding paired
64 * Unifying device.
65 *
66 * The paired device can be RAP or FAP, it will receive the message untouched
67 * from the Unifiying receiver.
68 */
69
70struct fap {
71 u8 feature_index;
72 u8 funcindex_clientid;
73 u8 params[HIDPP_REPORT_LONG_LENGTH - 4U];
74};
75
76struct rap {
77 u8 sub_id;
78 u8 reg_address;
79 u8 params[HIDPP_REPORT_LONG_LENGTH - 4U];
80};
81
82struct hidpp_report {
83 u8 report_id;
84 u8 device_index;
85 union {
86 struct fap fap;
87 struct rap rap;
88 u8 rawbytes[sizeof(struct fap)];
89 };
90} __packed;
91
92struct hidpp_device {
93 struct hid_device *hid_dev;
94 struct mutex send_mutex;
95 void *send_receive_buf;
005b3f57 96 char *name; /* will never be NULL and should not be freed */
2f31c525
BT		 97 wait_queue_head_t wait;
98 bool answer_available;
99 u8 protocol_major;
100 u8 protocol_minor;
101
102 void *private_data;
103
c39e3d5f
BT		 104 struct work_struct work;
105 struct kfifo delayed_work_fifo;
106 atomic_t connected;
107 struct input_dev *delayed_input;
108
2f31c525
BT		 109 unsigned long quirks;
110};
111
112
f677bb15 113/* HID++ 1.0 error codes */
2f31c525
BT		 114#define HIDPP_ERROR 0x8f
115#define HIDPP_ERROR_SUCCESS 0x00
116#define HIDPP_ERROR_INVALID_SUBID 0x01
117#define HIDPP_ERROR_INVALID_ADRESS 0x02
118#define HIDPP_ERROR_INVALID_VALUE 0x03
119#define HIDPP_ERROR_CONNECT_FAIL 0x04
120#define HIDPP_ERROR_TOO_MANY_DEVICES 0x05
121#define HIDPP_ERROR_ALREADY_EXISTS 0x06
122#define HIDPP_ERROR_BUSY 0x07
123#define HIDPP_ERROR_UNKNOWN_DEVICE 0x08
124#define HIDPP_ERROR_RESOURCE_ERROR 0x09
125#define HIDPP_ERROR_REQUEST_UNAVAILABLE 0x0a
126#define HIDPP_ERROR_INVALID_PARAM_VALUE 0x0b
127#define HIDPP_ERROR_WRONG_PIN_CODE 0x0c
f677bb15
PW		 128/* HID++ 2.0 error codes */
129#define HIDPP20_ERROR 0xff
2f31c525 130
c39e3d5f
BT		 131static void hidpp_connect_event(struct hidpp_device *hidpp_dev);
132
2f31c525
BT		 133static int __hidpp_send_report(struct hid_device *hdev,
134 struct hidpp_report *hidpp_report)
135{
136 int fields_count, ret;
137
138 switch (hidpp_report->report_id) {
139 case REPORT_ID_HIDPP_SHORT:
140 fields_count = HIDPP_REPORT_SHORT_LENGTH;
141 break;
142 case REPORT_ID_HIDPP_LONG:
143 fields_count = HIDPP_REPORT_LONG_LENGTH;
144 break;
145 default:
146 return -ENODEV;
147 }
148
149 /*
150 * set the device_index as the receiver, it will be overwritten by
151 * hid_hw_request if needed
152 */
153 hidpp_report->device_index = 0xff;
154
155 ret = hid_hw_raw_request(hdev, hidpp_report->report_id,
156 (u8 *)hidpp_report, fields_count, HID_OUTPUT_REPORT,
157 HID_REQ_SET_REPORT);
158
159 return ret == fields_count ? 0 : -1;
160}
161
8c9952b2
BT		 162/**
163 * hidpp_send_message_sync() returns 0 in case of success, and something else
164 * in case of a failure.
165 * - If ' something else' is positive, that means that an error has been raised
166 * by the protocol itself.
167 * - If ' something else' is negative, that means that we had a classic error
168 * (-ENOMEM, -EPIPE, etc...)
169 */
2f31c525
BT		 170static int hidpp_send_message_sync(struct hidpp_device *hidpp,
171 struct hidpp_report *message,
172 struct hidpp_report *response)
173{
174 int ret;
175
176 mutex_lock(&hidpp->send_mutex);
177
178 hidpp->send_receive_buf = response;
179 hidpp->answer_available = false;
180
181 /*
182 * So that we can later validate the answer when it arrives
183 * in hidpp_raw_event
184 */
185 *response = *message;
186
187 ret = __hidpp_send_report(hidpp->hid_dev, message);
188
189 if (ret) {
190 dbg_hid("__hidpp_send_report returned err: %d\n", ret);
191 memset(response, 0, sizeof(struct hidpp_report));
192 goto exit;
193 }
194
195 if (!wait_event_timeout(hidpp->wait, hidpp->answer_available,
196 5*HZ)) {
197 dbg_hid("%s:timeout waiting for response\n", __func__);
198 memset(response, 0, sizeof(struct hidpp_report));
199 ret = -ETIMEDOUT;
200 }
201
202 if (response->report_id == REPORT_ID_HIDPP_SHORT &&
f677bb15
PW		 203 response->rap.sub_id == HIDPP_ERROR) {
204 ret = response->rap.params[1];
205 dbg_hid("%s:got hidpp error %02X\n", __func__, ret);
206 goto exit;
207 }
208
209 if (response->report_id == REPORT_ID_HIDPP_LONG &&
210 response->fap.feature_index == HIDPP20_ERROR) {
2f31c525 211 ret = response->fap.params[1];
f677bb15 212 dbg_hid("%s:got hidpp 2.0 error %02X\n", __func__, ret);
2f31c525
BT		 213 goto exit;
214 }
215
216exit:
217 mutex_unlock(&hidpp->send_mutex);
218 return ret;
219
220}
221
222static int hidpp_send_fap_command_sync(struct hidpp_device *hidpp,
223 u8 feat_index, u8 funcindex_clientid, u8 *params, int param_count,
224 struct hidpp_report *response)
225{
3e7830ce 226 struct hidpp_report *message;
2f31c525
BT		 227 int ret;
228
229 if (param_count > sizeof(message->fap.params))
230 return -EINVAL;
231
3e7830ce
DC		 232 message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
233 if (!message)
234 return -ENOMEM;
2f31c525
BT		 235 message->report_id = REPORT_ID_HIDPP_LONG;
236 message->fap.feature_index = feat_index;
237 message->fap.funcindex_clientid = funcindex_clientid;
238 memcpy(&message->fap.params, params, param_count);
239
240 ret = hidpp_send_message_sync(hidpp, message, response);
241 kfree(message);
242 return ret;
243}
244
33797820
BT		 245static int hidpp_send_rap_command_sync(struct hidpp_device *hidpp_dev,
246 u8 report_id, u8 sub_id, u8 reg_address, u8 *params, int param_count,
247 struct hidpp_report *response)
248{
3e7830ce 249 struct hidpp_report *message;
33797820
BT		 250 int ret;
251
252 if ((report_id != REPORT_ID_HIDPP_SHORT) &&
253 (report_id != REPORT_ID_HIDPP_LONG))
254 return -EINVAL;
255
256 if (param_count > sizeof(message->rap.params))
257 return -EINVAL;
258
3e7830ce
DC		 259 message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
260 if (!message)
261 return -ENOMEM;
33797820
BT		 262 message->report_id = report_id;
263 message->rap.sub_id = sub_id;
264 message->rap.reg_address = reg_address;
265 memcpy(&message->rap.params, params, param_count);
266
267 ret = hidpp_send_message_sync(hidpp_dev, message, response);
268 kfree(message);
269 return ret;
270}
271
c39e3d5f
BT		 272static void delayed_work_cb(struct work_struct *work)
273{
274 struct hidpp_device *hidpp = container_of(work, struct hidpp_device,
275 work);
276 hidpp_connect_event(hidpp);
277}
278
2f31c525
BT		 279static inline bool hidpp_match_answer(struct hidpp_report *question,
280 struct hidpp_report *answer)
281{
282 return (answer->fap.feature_index == question->fap.feature_index) &&
283 (answer->fap.funcindex_clientid == question->fap.funcindex_clientid);
284}
285
286static inline bool hidpp_match_error(struct hidpp_report *question,
287 struct hidpp_report *answer)
288{
f677bb15
PW		 289 return ((answer->rap.sub_id == HIDPP_ERROR) ||
290 (answer->fap.feature_index == HIDPP20_ERROR)) &&
2f31c525
BT		 291 (answer->fap.funcindex_clientid == question->fap.feature_index) &&
292 (answer->fap.params[0] == question->fap.funcindex_clientid);
293}
294
c39e3d5f
BT		 295static inline bool hidpp_report_is_connect_event(struct hidpp_report *report)
296{
297 return (report->report_id == REPORT_ID_HIDPP_SHORT) &&
298 (report->rap.sub_id == 0x41);
299}
300
a0e625f8
BT		 301/**
302 * hidpp_prefix_name() prefixes the current given name with "Logitech ".
303 */
304static void hidpp_prefix_name(char **name, int name_length)
305{
306#define PREFIX_LENGTH 9 /* "Logitech " */
307
308 int new_length;
309 char *new_name;
310
311 if (name_length > PREFIX_LENGTH &&
312 strncmp(*name, "Logitech ", PREFIX_LENGTH) == 0)
313 /* The prefix has is already in the name */
314 return;
315
316 new_length = PREFIX_LENGTH + name_length;
317 new_name = kzalloc(new_length, GFP_KERNEL);
318 if (!new_name)
319 return;
320
321 snprintf(new_name, new_length, "Logitech %s", *name);
322
323 kfree(*name);
324
325 *name = new_name;
326}
327
33797820
BT		 328/* -------------------------------------------------------------------------- */
329/* HIDP++ 1.0 commands */
330/* -------------------------------------------------------------------------- */
331
332#define HIDPP_SET_REGISTER 0x80
333#define HIDPP_GET_REGISTER 0x81
334#define HIDPP_SET_LONG_REGISTER 0x82
335#define HIDPP_GET_LONG_REGISTER 0x83
336
337#define HIDPP_REG_PAIRING_INFORMATION 0xB5
338#define DEVICE_NAME 0x40
339
340static char *hidpp_get_unifying_name(struct hidpp_device *hidpp_dev)
341{
342 struct hidpp_report response;
343 int ret;
344 /* hid-logitech-dj is in charge of setting the right device index */
345 u8 params[1] = { DEVICE_NAME };
346 char *name;
347 int len;
348
349 ret = hidpp_send_rap_command_sync(hidpp_dev,
350 REPORT_ID_HIDPP_SHORT,
351 HIDPP_GET_LONG_REGISTER,
352 HIDPP_REG_PAIRING_INFORMATION,
353 params, 1, &response);
354 if (ret)
355 return NULL;
356
357 len = response.rap.params[1];
358
3a034a7a
PW		 359 if (2 + len > sizeof(response.rap.params))
360 return NULL;
361
33797820
BT		 362 name = kzalloc(len + 1, GFP_KERNEL);
363 if (!name)
364 return NULL;
365
366 memcpy(name, &response.rap.params[2], len);
a0e625f8
BT		 367
368 /* include the terminating '\0' */
369 hidpp_prefix_name(&name, len + 1);
370
33797820
BT		 371 return name;
372}
373
2f31c525
BT		 374/* -------------------------------------------------------------------------- */
375/* 0x0000: Root */
376/* -------------------------------------------------------------------------- */
377
378#define HIDPP_PAGE_ROOT 0x0000
379#define HIDPP_PAGE_ROOT_IDX 0x00
380
381#define CMD_ROOT_GET_FEATURE 0x01
382#define CMD_ROOT_GET_PROTOCOL_VERSION 0x11
383
384static int hidpp_root_get_feature(struct hidpp_device *hidpp, u16 feature,
385 u8 *feature_index, u8 *feature_type)
386{
387 struct hidpp_report response;
388 int ret;
389 u8 params[2] = { feature >> 8, feature & 0x00FF };
390
391 ret = hidpp_send_fap_command_sync(hidpp,
392 HIDPP_PAGE_ROOT_IDX,
393 CMD_ROOT_GET_FEATURE,
394 params, 2, &response);
395 if (ret)
396 return ret;
397
398 *feature_index = response.fap.params[0];
399 *feature_type = response.fap.params[1];
400
401 return ret;
402}
403
404static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp)
405{
406 struct hidpp_report response;
407 int ret;
408
409 ret = hidpp_send_fap_command_sync(hidpp,
410 HIDPP_PAGE_ROOT_IDX,
411 CMD_ROOT_GET_PROTOCOL_VERSION,
412 NULL, 0, &response);
413
552f12eb 414 if (ret == HIDPP_ERROR_INVALID_SUBID) {
2f31c525
BT		 415 hidpp->protocol_major = 1;
416 hidpp->protocol_minor = 0;
417 return 0;
418 }
419
552f12eb
BT		 420 /* the device might not be connected */
421 if (ret == HIDPP_ERROR_RESOURCE_ERROR)
422 return -EIO;
423
8c9952b2
BT		 424 if (ret > 0) {
425 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
426 __func__, ret);
427 return -EPROTO;
428 }
2f31c525 429 if (ret)
8c9952b2 430 return ret;
2f31c525
BT		 431
432 hidpp->protocol_major = response.fap.params[0];
433 hidpp->protocol_minor = response.fap.params[1];
434
435 return ret;
436}
437
438static bool hidpp_is_connected(struct hidpp_device *hidpp)
439{
440 int ret;
441
442 ret = hidpp_root_get_protocol_version(hidpp);
443 if (!ret)
444 hid_dbg(hidpp->hid_dev, "HID++ %u.%u device connected.\n",
445 hidpp->protocol_major, hidpp->protocol_minor);
446 return ret == 0;
447}
448
449/* -------------------------------------------------------------------------- */
450/* 0x0005: GetDeviceNameType */
451/* -------------------------------------------------------------------------- */
452
453#define HIDPP_PAGE_GET_DEVICE_NAME_TYPE 0x0005
454
455#define CMD_GET_DEVICE_NAME_TYPE_GET_COUNT 0x01
456#define CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME 0x11
457#define CMD_GET_DEVICE_NAME_TYPE_GET_TYPE 0x21
458
459static int hidpp_devicenametype_get_count(struct hidpp_device *hidpp,
460 u8 feature_index, u8 *nameLength)
461{
462 struct hidpp_report response;
463 int ret;
464
465 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
466 CMD_GET_DEVICE_NAME_TYPE_GET_COUNT, NULL, 0, &response);
467
8c9952b2
BT		 468 if (ret > 0) {
469 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
470 __func__, ret);
471 return -EPROTO;
472 }
2f31c525 473 if (ret)
8c9952b2 474 return ret;
2f31c525
BT		 475
476 *nameLength = response.fap.params[0];
477
478 return ret;
479}
480
481static int hidpp_devicenametype_get_device_name(struct hidpp_device *hidpp,
482 u8 feature_index, u8 char_index, char *device_name, int len_buf)
483{
484 struct hidpp_report response;
485 int ret, i;
486 int count;
487
488 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
489 CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME, &char_index, 1,
490 &response);
491
8c9952b2
BT		 492 if (ret > 0) {
493 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
494 __func__, ret);
495 return -EPROTO;
496 }
2f31c525 497 if (ret)
8c9952b2 498 return ret;
2f31c525
BT		 499
500 if (response.report_id == REPORT_ID_HIDPP_LONG)
501 count = HIDPP_REPORT_LONG_LENGTH - 4;
502 else
503 count = HIDPP_REPORT_SHORT_LENGTH - 4;
504
505 if (len_buf < count)
506 count = len_buf;
507
508 for (i = 0; i < count; i++)
509 device_name[i] = response.fap.params[i];
510
511 return count;
512}
513
02cc097e 514static char *hidpp_get_device_name(struct hidpp_device *hidpp)
2f31c525
BT		 515{
516 u8 feature_type;
517 u8 feature_index;
518 u8 __name_length;
519 char *name;
520 unsigned index = 0;
521 int ret;
522
523 ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_GET_DEVICE_NAME_TYPE,
524 &feature_index, &feature_type);
525 if (ret)
02cc097e 526 return NULL;
2f31c525
BT		 527
528 ret = hidpp_devicenametype_get_count(hidpp, feature_index,
529 &__name_length);
530 if (ret)
02cc097e 531 return NULL;
2f31c525
BT		 532
533 name = kzalloc(__name_length + 1, GFP_KERNEL);
534 if (!name)
02cc097e 535 return NULL;
2f31c525 536
1430ee73
PW		 537 while (index < __name_length) {
538 ret = hidpp_devicenametype_get_device_name(hidpp,
2f31c525
BT		 539 feature_index, index, name + index,
540 __name_length - index);
1430ee73
PW		 541 if (ret <= 0) {
542 kfree(name);
543 return NULL;
544 }
545 index += ret;
546 }
2f31c525 547
a0e625f8
BT		 548 /* include the terminating '\0' */
549 hidpp_prefix_name(&name, __name_length + 1);
550
2f31c525 551 return name;
2f31c525
BT		 552}
553
554/* -------------------------------------------------------------------------- */
555/* 0x6100: TouchPadRawXY */
556/* -------------------------------------------------------------------------- */
557
558#define HIDPP_PAGE_TOUCHPAD_RAW_XY 0x6100
559
560#define CMD_TOUCHPAD_GET_RAW_INFO 0x01
586bdc4e
BT		 561#define CMD_TOUCHPAD_SET_RAW_REPORT_STATE 0x21
562
563#define EVENT_TOUCHPAD_RAW_XY 0x00
2f31c525
BT		 564
565#define TOUCHPAD_RAW_XY_ORIGIN_LOWER_LEFT 0x01
566#define TOUCHPAD_RAW_XY_ORIGIN_UPPER_LEFT 0x03
567
568struct hidpp_touchpad_raw_info {
569 u16 x_size;
570 u16 y_size;
571 u8 z_range;
572 u8 area_range;
573 u8 timestamp_unit;
574 u8 maxcontacts;
575 u8 origin;
576 u16 res;
577};
578
579struct hidpp_touchpad_raw_xy_finger {
580 u8 contact_type;
581 u8 contact_status;
582 u16 x;
583 u16 y;
584 u8 z;
585 u8 area;
586 u8 finger_id;
587};
588
589struct hidpp_touchpad_raw_xy {
590 u16 timestamp;
591 struct hidpp_touchpad_raw_xy_finger fingers[2];
592 u8 spurious_flag;
593 u8 end_of_frame;
594 u8 finger_count;
595 u8 button;
596};
597
598static int hidpp_touchpad_get_raw_info(struct hidpp_device *hidpp,
599 u8 feature_index, struct hidpp_touchpad_raw_info *raw_info)
600{
601 struct hidpp_report response;
602 int ret;
603 u8 *params = (u8 *)response.fap.params;
604
605 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
606 CMD_TOUCHPAD_GET_RAW_INFO, NULL, 0, &response);
607
8c9952b2
BT		 608 if (ret > 0) {
609 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
610 __func__, ret);
611 return -EPROTO;
612 }
2f31c525 613 if (ret)
8c9952b2 614 return ret;
2f31c525
BT		 615
616 raw_info->x_size = get_unaligned_be16(&params[0]);
617 raw_info->y_size = get_unaligned_be16(&params[2]);
618 raw_info->z_range = params[4];
619 raw_info->area_range = params[5];
620 raw_info->maxcontacts = params[7];
621 raw_info->origin = params[8];
622 /* res is given in unit per inch */
623 raw_info->res = get_unaligned_be16(&params[13]) * 2 / 51;
624
625 return ret;
626}
627
586bdc4e
BT		 628static int hidpp_touchpad_set_raw_report_state(struct hidpp_device *hidpp_dev,
629 u8 feature_index, bool send_raw_reports,
630 bool sensor_enhanced_settings)
631{
632 struct hidpp_report response;
633
634 /*
635 * Params:
636 * bit 0 - enable raw
637 * bit 1 - 16bit Z, no area
638 * bit 2 - enhanced sensitivity
639 * bit 3 - width, height (4 bits each) instead of area
640 * bit 4 - send raw + gestures (degrades smoothness)
641 * remaining bits - reserved
642 */
643 u8 params = send_raw_reports | (sensor_enhanced_settings << 2);
644
645 return hidpp_send_fap_command_sync(hidpp_dev, feature_index,
646 CMD_TOUCHPAD_SET_RAW_REPORT_STATE, &params, 1, &response);
647}
648
649static void hidpp_touchpad_touch_event(u8 *data,
650 struct hidpp_touchpad_raw_xy_finger *finger)
651{
652 u8 x_m = data[0] << 2;
653 u8 y_m = data[2] << 2;
654
655 finger->x = x_m << 6 | data[1];
656 finger->y = y_m << 6 | data[3];
657
658 finger->contact_type = data[0] >> 6;
659 finger->contact_status = data[2] >> 6;
660
661 finger->z = data[4];
662 finger->area = data[5];
663 finger->finger_id = data[6] >> 4;
664}
665
666static void hidpp_touchpad_raw_xy_event(struct hidpp_device *hidpp_dev,
667 u8 *data, struct hidpp_touchpad_raw_xy *raw_xy)
668{
669 memset(raw_xy, 0, sizeof(struct hidpp_touchpad_raw_xy));
670 raw_xy->end_of_frame = data[8] & 0x01;
671 raw_xy->spurious_flag = (data[8] >> 1) & 0x01;
672 raw_xy->finger_count = data[15] & 0x0f;
673 raw_xy->button = (data[8] >> 2) & 0x01;
674
675 if (raw_xy->finger_count) {
676 hidpp_touchpad_touch_event(&data[2], &raw_xy->fingers[0]);
677 hidpp_touchpad_touch_event(&data[9], &raw_xy->fingers[1]);
678 }
679}
680
2f31c525
BT		 681/* ************************************************************************** */
682/* */
683/* Device Support */
684/* */
685/* ************************************************************************** */
686
687/* -------------------------------------------------------------------------- */
688/* Touchpad HID++ devices */
689/* -------------------------------------------------------------------------- */
690
57ac86cf
BT		 691#define WTP_MANUAL_RESOLUTION 39
692
2f31c525
BT		 693struct wtp_data {
694 struct input_dev *input;
695 u16 x_size, y_size;
696 u8 finger_count;
697 u8 mt_feature_index;
698 u8 button_feature_index;
699 u8 maxcontacts;
700 bool flip_y;
701 unsigned int resolution;
702};
703
704static int wtp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
705 struct hid_field *field, struct hid_usage *usage,
706 unsigned long **bit, int *max)
707{
708 return -1;
709}
710
c39e3d5f
BT		 711static void wtp_populate_input(struct hidpp_device *hidpp,
712 struct input_dev *input_dev, bool origin_is_hid_core)
2f31c525 713{
2f31c525 714 struct wtp_data *wd = hidpp->private_data;
2f31c525
BT		 715
716 __set_bit(EV_ABS, input_dev->evbit);
717 __set_bit(EV_KEY, input_dev->evbit);
718 __clear_bit(EV_REL, input_dev->evbit);
719 __clear_bit(EV_LED, input_dev->evbit);
720
721 input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0, wd->x_size, 0, 0);
722 input_abs_set_res(input_dev, ABS_MT_POSITION_X, wd->resolution);
723 input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0, wd->y_size, 0, 0);
724 input_abs_set_res(input_dev, ABS_MT_POSITION_Y, wd->resolution);
725
726 /* Max pressure is not given by the devices, pick one */
727 input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 50, 0, 0);
728
729 input_set_capability(input_dev, EV_KEY, BTN_LEFT);
730
57ac86cf
BT		 731 if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS)
732 input_set_capability(input_dev, EV_KEY, BTN_RIGHT);
733 else
734 __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit);
2f31c525
BT		 735
736 input_mt_init_slots(input_dev, wd->maxcontacts, INPUT_MT_POINTER |
737 INPUT_MT_DROP_UNUSED);
738
739 wd->input = input_dev;
740}
741
742static void wtp_touch_event(struct wtp_data *wd,
743 struct hidpp_touchpad_raw_xy_finger *touch_report)
744{
745 int slot;
746
747 if (!touch_report->finger_id || touch_report->contact_type)
748 /* no actual data */
749 return;
750
751 slot = input_mt_get_slot_by_key(wd->input, touch_report->finger_id);
752
753 input_mt_slot(wd->input, slot);
754 input_mt_report_slot_state(wd->input, MT_TOOL_FINGER,
755 touch_report->contact_status);
756 if (touch_report->contact_status) {
757 input_event(wd->input, EV_ABS, ABS_MT_POSITION_X,
758 touch_report->x);
759 input_event(wd->input, EV_ABS, ABS_MT_POSITION_Y,
760 wd->flip_y ? wd->y_size - touch_report->y :
761 touch_report->y);
762 input_event(wd->input, EV_ABS, ABS_MT_PRESSURE,
763 touch_report->area);
764 }
765}
766
767static void wtp_send_raw_xy_event(struct hidpp_device *hidpp,
768 struct hidpp_touchpad_raw_xy *raw)
769{
770 struct wtp_data *wd = hidpp->private_data;
771 int i;
772
773 for (i = 0; i < 2; i++)
774 wtp_touch_event(wd, &(raw->fingers[i]));
775
57ac86cf
BT		 776 if (raw->end_of_frame &&
777 !(hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS))
2f31c525
BT		 778 input_event(wd->input, EV_KEY, BTN_LEFT, raw->button);
779
780 if (raw->end_of_frame || raw->finger_count <= 2) {
781 input_mt_sync_frame(wd->input);
782 input_sync(wd->input);
783 }
784}
785
786static int wtp_mouse_raw_xy_event(struct hidpp_device *hidpp, u8 *data)
787{
788 struct wtp_data *wd = hidpp->private_data;
789 u8 c1_area = ((data[7] & 0xf) * (data[7] & 0xf) +
790 (data[7] >> 4) * (data[7] >> 4)) / 2;
791 u8 c2_area = ((data[13] & 0xf) * (data[13] & 0xf) +
792 (data[13] >> 4) * (data[13] >> 4)) / 2;
793 struct hidpp_touchpad_raw_xy raw = {
794 .timestamp = data[1],
795 .fingers = {
796 {
797 .contact_type = 0,
798 .contact_status = !!data[7],
799 .x = get_unaligned_le16(&data[3]),
800 .y = get_unaligned_le16(&data[5]),
801 .z = c1_area,
802 .area = c1_area,
803 .finger_id = data[2],
804 }, {
805 .contact_type = 0,
806 .contact_status = !!data[13],
807 .x = get_unaligned_le16(&data[9]),
808 .y = get_unaligned_le16(&data[11]),
809 .z = c2_area,
810 .area = c2_area,
811 .finger_id = data[8],
812 }
813 },
814 .finger_count = wd->maxcontacts,
815 .spurious_flag = 0,
816 .end_of_frame = (data[0] >> 7) == 0,
817 .button = data[0] & 0x01,
818 };
819
820 wtp_send_raw_xy_event(hidpp, &raw);
821
822 return 1;
823}
824
825static int wtp_raw_event(struct hid_device *hdev, u8 *data, int size)
826{
827 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
828 struct wtp_data *wd = hidpp->private_data;
586bdc4e
BT		 829 struct hidpp_report *report = (struct hidpp_report *)data;
830 struct hidpp_touchpad_raw_xy raw;
2f31c525 831
586bdc4e 832 if (!wd || !wd->input)
2f31c525
BT		 833 return 1;
834
586bdc4e
BT		 835 switch (data[0]) {
836 case 0x02:
0b3f6569
PW		 837 if (size < 2) {
838 hid_err(hdev, "Received HID report of bad size (%d)",
839 size);
840 return 1;
841 }
57ac86cf
BT		 842 if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS) {
843 input_event(wd->input, EV_KEY, BTN_LEFT,
844 !!(data[1] & 0x01));
845 input_event(wd->input, EV_KEY, BTN_RIGHT,
846 !!(data[1] & 0x02));
847 input_sync(wd->input);
8abd8205 848 return 0;
57ac86cf
BT		 849 } else {
850 if (size < 21)
851 return 1;
852 return wtp_mouse_raw_xy_event(hidpp, &data[7]);
853 }
586bdc4e 854 case REPORT_ID_HIDPP_LONG:
0b3f6569 855 /* size is already checked in hidpp_raw_event. */
586bdc4e
BT		 856 if ((report->fap.feature_index != wd->mt_feature_index) ||
857 (report->fap.funcindex_clientid != EVENT_TOUCHPAD_RAW_XY))
858 return 1;
859 hidpp_touchpad_raw_xy_event(hidpp, data + 4, &raw);
860
861 wtp_send_raw_xy_event(hidpp, &raw);
862 return 0;
863 }
864
865 return 0;
2f31c525
BT		 866}
867
868static int wtp_get_config(struct hidpp_device *hidpp)
869{
870 struct wtp_data *wd = hidpp->private_data;
871 struct hidpp_touchpad_raw_info raw_info = {0};
872 u8 feature_type;
873 int ret;
874
875 ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_TOUCHPAD_RAW_XY,
876 &wd->mt_feature_index, &feature_type);
877 if (ret)
878 /* means that the device is not powered up */
879 return ret;
880
881 ret = hidpp_touchpad_get_raw_info(hidpp, wd->mt_feature_index,
882 &raw_info);
883 if (ret)
884 return ret;
885
886 wd->x_size = raw_info.x_size;
887 wd->y_size = raw_info.y_size;
888 wd->maxcontacts = raw_info.maxcontacts;
889 wd->flip_y = raw_info.origin == TOUCHPAD_RAW_XY_ORIGIN_LOWER_LEFT;
890 wd->resolution = raw_info.res;
57ac86cf
BT		 891 if (!wd->resolution)
892 wd->resolution = WTP_MANUAL_RESOLUTION;
2f31c525
BT		 893
894 return 0;
895}
896
897static int wtp_allocate(struct hid_device *hdev, const struct hid_device_id *id)
898{
899 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
900 struct wtp_data *wd;
901
902 wd = devm_kzalloc(&hdev->dev, sizeof(struct wtp_data),
903 GFP_KERNEL);
904 if (!wd)
905 return -ENOMEM;
906
907 hidpp->private_data = wd;
908
909 return 0;
910};
911
bf159447 912static int wtp_connect(struct hid_device *hdev, bool connected)
586bdc4e
BT		 913{
914 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
915 struct wtp_data *wd = hidpp->private_data;
916 int ret;
917
918 if (!connected)
bf159447 919 return 0;
586bdc4e
BT		 920
921 if (!wd->x_size) {
922 ret = wtp_get_config(hidpp);
923 if (ret) {
924 hid_err(hdev, "Can not get wtp config: %d\n", ret);
bf159447 925 return ret;
586bdc4e
BT		 926 }
927 }
928
bf159447 929 return hidpp_touchpad_set_raw_report_state(hidpp, wd->mt_feature_index,
586bdc4e
BT		 930 true, true);
931}
932
2f31c525
BT		 933/* -------------------------------------------------------------------------- */
934/* Generic HID++ devices */
935/* -------------------------------------------------------------------------- */
936
937static int hidpp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
938 struct hid_field *field, struct hid_usage *usage,
939 unsigned long **bit, int *max)
940{
941 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
942
943 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
944 return wtp_input_mapping(hdev, hi, field, usage, bit, max);
945
946 return 0;
947}
948
c39e3d5f
BT		 949static void hidpp_populate_input(struct hidpp_device *hidpp,
950 struct input_dev *input, bool origin_is_hid_core)
951{
952 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
953 wtp_populate_input(hidpp, input, origin_is_hid_core);
954}
955
2f31c525
BT		 956static void hidpp_input_configured(struct hid_device *hdev,
957 struct hid_input *hidinput)
958{
959 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
c39e3d5f 960 struct input_dev *input = hidinput->input;
2f31c525 961
c39e3d5f 962 hidpp_populate_input(hidpp, input, true);
2f31c525
BT		 963}
964
965static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data,
966 int size)
967{
968 struct hidpp_report *question = hidpp->send_receive_buf;
969 struct hidpp_report *answer = hidpp->send_receive_buf;
970 struct hidpp_report *report = (struct hidpp_report *)data;
971
972 /*
973 * If the mutex is locked then we have a pending answer from a
e529fea9 974 * previously sent command.
2f31c525
BT		 975 */
976 if (unlikely(mutex_is_locked(&hidpp->send_mutex))) {
977 /*
978 * Check for a correct hidpp20 answer or the corresponding
979 * error
980 */
981 if (hidpp_match_answer(question, report) ||
982 hidpp_match_error(question, report)) {
983 *answer = *report;
984 hidpp->answer_available = true;
985 wake_up(&hidpp->wait);
986 /*
987 * This was an answer to a command that this driver sent
988 * We return 1 to hid-core to avoid forwarding the
989 * command upstream as it has been treated by the driver
990 */
991
992 return 1;
993 }
994 }
995
c39e3d5f
BT		 996 if (unlikely(hidpp_report_is_connect_event(report))) {
997 atomic_set(&hidpp->connected,
998 !(report->rap.params[0] & (1 << 6)));
999 if ((hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT) &&
1000 (schedule_work(&hidpp->work) == 0))
1001 dbg_hid("%s: connect event already queued\n", __func__);
1002 return 1;
1003 }
1004
2f31c525
BT		 1005 return 0;
1006}
1007
1008static int hidpp_raw_event(struct hid_device *hdev, struct hid_report *report,
1009 u8 *data, int size)
1010{
1011 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
e529fea9 1012 int ret = 0;
2f31c525 1013
e529fea9 1014 /* Generic HID++ processing. */
2f31c525
BT		 1015 switch (data[0]) {
1016 case REPORT_ID_HIDPP_LONG:
1017 if (size != HIDPP_REPORT_LONG_LENGTH) {
1018 hid_err(hdev, "received hid++ report of bad size (%d)",
1019 size);
1020 return 1;
1021 }
e529fea9
PW		 1022 ret = hidpp_raw_hidpp_event(hidpp, data, size);
1023 break;
2f31c525
BT		 1024 case REPORT_ID_HIDPP_SHORT:
1025 if (size != HIDPP_REPORT_SHORT_LENGTH) {
1026 hid_err(hdev, "received hid++ report of bad size (%d)",
1027 size);
1028 return 1;
1029 }
e529fea9
PW		 1030 ret = hidpp_raw_hidpp_event(hidpp, data, size);
1031 break;
2f31c525
BT		 1032 }
1033
e529fea9
PW		 1034 /* If no report is available for further processing, skip calling
1035 * raw_event of subclasses. */
1036 if (ret != 0)
1037 return ret;
1038
2f31c525
BT		 1039 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
1040 return wtp_raw_event(hdev, data, size);
1041
1042 return 0;
1043}
1044
33797820 1045static void hidpp_overwrite_name(struct hid_device *hdev, bool use_unifying)
2f31c525
BT		 1046{
1047 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
1048 char *name;
2f31c525 1049
33797820
BT		 1050 if (use_unifying)
1051 /*
1052 * the device is connected through an Unifying receiver, and
1053 * might not be already connected.
1054 * Ask the receiver for its name.
1055 */
1056 name = hidpp_get_unifying_name(hidpp);
1057 else
02cc097e 1058 name = hidpp_get_device_name(hidpp);
2f31c525
BT		 1059
1060 if (!name)
1061 hid_err(hdev, "unable to retrieve the name of the device");
1062 else
1063 snprintf(hdev->name, sizeof(hdev->name), "%s", name);
1064
1065 kfree(name);
1066}
1067
c39e3d5f
BT		 1068static int hidpp_input_open(struct input_dev *dev)
1069{
1070 struct hid_device *hid = input_get_drvdata(dev);
1071
1072 return hid_hw_open(hid);
1073}
1074
1075static void hidpp_input_close(struct input_dev *dev)
1076{
1077 struct hid_device *hid = input_get_drvdata(dev);
1078
1079 hid_hw_close(hid);
1080}
1081
1082static struct input_dev *hidpp_allocate_input(struct hid_device *hdev)
1083{
1084 struct input_dev *input_dev = devm_input_allocate_device(&hdev->dev);
005b3f57 1085 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
c39e3d5f
BT		 1086
1087 if (!input_dev)
1088 return NULL;
1089
1090 input_set_drvdata(input_dev, hdev);
1091 input_dev->open = hidpp_input_open;
1092 input_dev->close = hidpp_input_close;
1093
005b3f57 1094 input_dev->name = hidpp->name;
c39e3d5f
BT		 1095 input_dev->phys = hdev->phys;
1096 input_dev->uniq = hdev->uniq;
1097 input_dev->id.bustype = hdev->bus;
1098 input_dev->id.vendor = hdev->vendor;
1099 input_dev->id.product = hdev->product;
1100 input_dev->id.version = hdev->version;
1101 input_dev->dev.parent = &hdev->dev;
1102
1103 return input_dev;
1104}
1105
1106static void hidpp_connect_event(struct hidpp_device *hidpp)
1107{
1108 struct hid_device *hdev = hidpp->hid_dev;
1109 int ret = 0;
1110 bool connected = atomic_read(&hidpp->connected);
1111 struct input_dev *input;
1112 char *name, *devm_name;
c39e3d5f 1113
bf159447
BT		 1114 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
1115 ret = wtp_connect(hdev, connected);
1116 if (ret)
1117 return;
1118 }
586bdc4e 1119
c39e3d5f
BT		 1120 if (!connected || hidpp->delayed_input)
1121 return;
1122
1123 if (!hidpp->protocol_major) {
1124 ret = !hidpp_is_connected(hidpp);
1125 if (ret) {
1126 hid_err(hdev, "Can not get the protocol version.\n");
1127 return;
1128 }
1129 }
1130
1131 /* the device is already connected, we can ask for its name and
1132 * protocol */
1133 hid_info(hdev, "HID++ %u.%u device connected.\n",
1134 hidpp->protocol_major, hidpp->protocol_minor);
1135
005b3f57
BT		 1136 if (!hidpp->name || hidpp->name == hdev->name) {
1137 name = hidpp_get_device_name(hidpp);
1138 if (!name) {
1139 hid_err(hdev,
1140 "unable to retrieve the name of the device");
1141 return;
1142 }
1143
1144 devm_name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "%s", name);
1145 kfree(name);
1146 if (!devm_name)
1147 return;
1148
1149 hidpp->name = devm_name;
1150 }
1151
c39e3d5f
BT		 1152 input = hidpp_allocate_input(hdev);
1153 if (!input) {
1154 hid_err(hdev, "cannot allocate new input device: %d\n", ret);
1155 return;
1156 }
1157
c39e3d5f
BT		 1158 hidpp_populate_input(hidpp, input, false);
1159
1160 ret = input_register_device(input);
1161 if (ret)
1162 input_free_device(input);
1163
1164 hidpp->delayed_input = input;
1165}
1166
2f31c525
BT		 1167static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
1168{
1169 struct hidpp_device *hidpp;
1170 int ret;
1171 bool connected;
c39e3d5f 1172 unsigned int connect_mask = HID_CONNECT_DEFAULT;
2f31c525
BT		 1173
1174 hidpp = devm_kzalloc(&hdev->dev, sizeof(struct hidpp_device),
1175 GFP_KERNEL);
1176 if (!hidpp)
1177 return -ENOMEM;
1178
1179 hidpp->hid_dev = hdev;
005b3f57 1180 hidpp->name = hdev->name;
2f31c525
BT		 1181 hid_set_drvdata(hdev, hidpp);
1182
1183 hidpp->quirks = id->driver_data;
1184
9188dbae
BT		 1185 if (disable_raw_mode) {
1186 hidpp->quirks &= ~HIDPP_QUIRK_CLASS_WTP;
1187 hidpp->quirks &= ~HIDPP_QUIRK_DELAYED_INIT;
1188 }
1189
2f31c525
BT		 1190 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
1191 ret = wtp_allocate(hdev, id);
1192 if (ret)
f486d9db 1193 goto wtp_allocate_fail;
2f31c525
BT		 1194 }
1195
c39e3d5f 1196 INIT_WORK(&hidpp->work, delayed_work_cb);
2f31c525
BT		 1197 mutex_init(&hidpp->send_mutex);
1198 init_waitqueue_head(&hidpp->wait);
1199
1200 ret = hid_parse(hdev);
1201 if (ret) {
1202 hid_err(hdev, "%s:parse failed\n", __func__);
1203 goto hid_parse_fail;
1204 }
1205
1206 /* Allow incoming packets */
1207 hid_device_io_start(hdev);
1208
1209 connected = hidpp_is_connected(hidpp);
ab94e562
BT		 1210 if (id->group != HID_GROUP_LOGITECH_DJ_DEVICE) {
1211 if (!connected) {
b832da56 1212 ret = -ENODEV;
ab94e562 1213 hid_err(hdev, "Device not connected");
f486d9db 1214 hid_device_io_stop(hdev);
ab94e562
BT		 1215 goto hid_parse_fail;
1216 }
2f31c525 1217
ab94e562
BT		 1218 hid_info(hdev, "HID++ %u.%u device connected.\n",
1219 hidpp->protocol_major, hidpp->protocol_minor);
ab94e562 1220 }
2f31c525 1221
33797820 1222 hidpp_overwrite_name(hdev, id->group == HID_GROUP_LOGITECH_DJ_DEVICE);
c39e3d5f 1223 atomic_set(&hidpp->connected, connected);
33797820 1224
c39e3d5f 1225 if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)) {
2f31c525
BT		 1226 ret = wtp_get_config(hidpp);
1227 if (ret)
1228 goto hid_parse_fail;
1229 }
1230
1231 /* Block incoming packets */
1232 hid_device_io_stop(hdev);
1233
c39e3d5f
BT		 1234 if (hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT)
1235 connect_mask &= ~HID_CONNECT_HIDINPUT;
1236
1237 ret = hid_hw_start(hdev, connect_mask);
2f31c525
BT		 1238 if (ret) {
1239 hid_err(hdev, "%s:hid_hw_start returned error\n", __func__);
1240 goto hid_hw_start_fail;
1241 }
1242
c39e3d5f
BT		 1243 if (hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT) {
1244 /* Allow incoming packets */
1245 hid_device_io_start(hdev);
1246
1247 hidpp_connect_event(hidpp);
1248 }
1249
2f31c525
BT		 1250 return ret;
1251
1252hid_hw_start_fail:
1253hid_parse_fail:
c39e3d5f 1254 cancel_work_sync(&hidpp->work);
2f31c525 1255 mutex_destroy(&hidpp->send_mutex);
f486d9db 1256wtp_allocate_fail:
2f31c525
BT		 1257 hid_set_drvdata(hdev, NULL);
1258 return ret;
1259}
1260
1261static void hidpp_remove(struct hid_device *hdev)
1262{
1263 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
1264
c39e3d5f 1265 cancel_work_sync(&hidpp->work);
2f31c525
BT		 1266 mutex_destroy(&hidpp->send_mutex);
1267 hid_hw_stop(hdev);
1268}
1269
1270static const struct hid_device_id hidpp_devices[] = {
57ac86cf
BT		 1271 { /* wireless touchpad */
1272 HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
1273 USB_VENDOR_ID_LOGITECH, 0x4011),
1274 .driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT |
1275 HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS },
586bdc4e
BT		 1276 { /* wireless touchpad T650 */
1277 HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
1278 USB_VENDOR_ID_LOGITECH, 0x4101),
1279 .driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT },
2f31c525
BT		 1280 { /* wireless touchpad T651 */
1281 HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
1282 USB_DEVICE_ID_LOGITECH_T651),
1283 .driver_data = HIDPP_QUIRK_CLASS_WTP },
ab94e562
BT		 1284
1285 { HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
1286 USB_VENDOR_ID_LOGITECH, HID_ANY_ID)},
2f31c525
BT		 1287 {}
1288};
1289
1290MODULE_DEVICE_TABLE(hid, hidpp_devices);
1291
1292static struct hid_driver hidpp_driver = {
1293 .name = "logitech-hidpp-device",
1294 .id_table = hidpp_devices,
1295 .probe = hidpp_probe,
1296 .remove = hidpp_remove,
1297 .raw_event = hidpp_raw_event,
1298 .input_configured = hidpp_input_configured,
1299 .input_mapping = hidpp_input_mapping,
1300};
1301
1302module_hid_driver(hidpp_driver);
Linux kernel - Deliverables
This page took 0.11406 seconds and 5 git commands to generate.