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HID: logitech: Add function to enable HID++ 1.0 "scrolling acceleration"
[linux-2.6-block.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>
ff21a635
EV		 18#include <linux/input.h>
19#include <linux/usb.h>
2f31c525
BT		 20#include <linux/hid.h>
21#include <linux/module.h>
22#include <linux/slab.h>
23#include <linux/sched.h>
24#include <linux/kfifo.h>
25#include <linux/input/mt.h>
ff21a635
EV		 26#include <linux/workqueue.h>
27#include <linux/atomic.h>
28#include <linux/fixp-arith.h>
2f31c525 29#include <asm/unaligned.h>
ff21a635 30#include "usbhid/usbhid.h"
2f31c525
BT		 31#include "hid-ids.h"
32
33MODULE_LICENSE("GPL");
34MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
35MODULE_AUTHOR("Nestor Lopez Casado <nlopezcasad@logitech.com>");
36
9188dbae
BT		 37static bool disable_raw_mode;
38module_param(disable_raw_mode, bool, 0644);
39MODULE_PARM_DESC(disable_raw_mode,
40 "Disable Raw mode reporting for touchpads and keep firmware gestures.");
41
90cdd986
BT		 42static bool disable_tap_to_click;
43module_param(disable_tap_to_click, bool, 0644);
44MODULE_PARM_DESC(disable_tap_to_click,
45 "Disable Tap-To-Click mode reporting for touchpads (only on the K400 currently).");
46
2f31c525
BT		 47#define REPORT_ID_HIDPP_SHORT 0x10
48#define REPORT_ID_HIDPP_LONG 0x11
a5ce8f5b 49#define REPORT_ID_HIDPP_VERY_LONG 0x12
2f31c525
BT		 50
51#define HIDPP_REPORT_SHORT_LENGTH 7
52#define HIDPP_REPORT_LONG_LENGTH 20
a5ce8f5b 53#define HIDPP_REPORT_VERY_LONG_LENGTH 64
2f31c525
BT		 54
55#define HIDPP_QUIRK_CLASS_WTP BIT(0)
8a09b4fa 56#define HIDPP_QUIRK_CLASS_M560 BIT(1)
90cdd986 57#define HIDPP_QUIRK_CLASS_K400 BIT(2)
7bfd2927 58#define HIDPP_QUIRK_CLASS_G920 BIT(3)
696ecef9 59#define HIDPP_QUIRK_CLASS_K750 BIT(4)
2f31c525 60
8a09b4fa 61/* bits 2..20 are reserved for classes */
6bd4e65d 62/* #define HIDPP_QUIRK_CONNECT_EVENTS BIT(21) disabled */
57ac86cf 63#define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS BIT(22)
580a7e82 64#define HIDPP_QUIRK_NO_HIDINPUT BIT(23)
7bfd2927 65#define HIDPP_QUIRK_FORCE_OUTPUT_REPORTS BIT(24)
843c624e 66#define HIDPP_QUIRK_UNIFYING BIT(25)
580a7e82 67
6bd4e65d 68#define HIDPP_QUIRK_DELAYED_INIT HIDPP_QUIRK_NO_HIDINPUT
c39e3d5f 69
206d7c68
BT		 70#define HIDPP_CAPABILITY_HIDPP10_BATTERY BIT(0)
71#define HIDPP_CAPABILITY_HIDPP20_BATTERY BIT(1)
5b036ea1
BT		 72#define HIDPP_CAPABILITY_BATTERY_MILEAGE BIT(2)
73#define HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS BIT(3)
206d7c68 74
2f31c525
BT		 75/*
76 * There are two hidpp protocols in use, the first version hidpp10 is known
77 * as register access protocol or RAP, the second version hidpp20 is known as
78 * feature access protocol or FAP
79 *
80 * Most older devices (including the Unifying usb receiver) use the RAP protocol
81 * where as most newer devices use the FAP protocol. Both protocols are
82 * compatible with the underlying transport, which could be usb, Unifiying, or
83 * bluetooth. The message lengths are defined by the hid vendor specific report
84 * descriptor for the HIDPP_SHORT report type (total message lenth 7 bytes) and
85 * the HIDPP_LONG report type (total message length 20 bytes)
86 *
87 * The RAP protocol uses both report types, whereas the FAP only uses HIDPP_LONG
88 * messages. The Unifying receiver itself responds to RAP messages (device index
89 * is 0xFF for the receiver), and all messages (short or long) with a device
90 * index between 1 and 6 are passed untouched to the corresponding paired
91 * Unifying device.
92 *
93 * The paired device can be RAP or FAP, it will receive the message untouched
94 * from the Unifiying receiver.
95 */
96
97struct fap {
98 u8 feature_index;
99 u8 funcindex_clientid;
a5ce8f5b 100 u8 params[HIDPP_REPORT_VERY_LONG_LENGTH - 4U];
2f31c525
BT		 101};
102
103struct rap {
104 u8 sub_id;
105 u8 reg_address;
a5ce8f5b 106 u8 params[HIDPP_REPORT_VERY_LONG_LENGTH - 4U];
2f31c525
BT		 107};
108
109struct hidpp_report {
110 u8 report_id;
111 u8 device_index;
112 union {
113 struct fap fap;
114 struct rap rap;
115 u8 rawbytes[sizeof(struct fap)];
116 };
117} __packed;
118
5a2b190c
PH		 119struct hidpp_battery {
120 u8 feature_index;
696ecef9 121 u8 solar_feature_index;
5a2b190c
PH		 122 struct power_supply_desc desc;
123 struct power_supply *ps;
124 char name[64];
125 int status;
14f437a1 126 int capacity;
5b036ea1 127 int level;
284f8d75 128 bool online;
5a2b190c
PH		 129};
130
2f31c525
BT		 131struct hidpp_device {
132 struct hid_device *hid_dev;
133 struct mutex send_mutex;
134 void *send_receive_buf;
005b3f57 135 char *name; /* will never be NULL and should not be freed */
2f31c525
BT		 136 wait_queue_head_t wait;
137 bool answer_available;
138 u8 protocol_major;
139 u8 protocol_minor;
140
141 void *private_data;
142
c39e3d5f
BT		 143 struct work_struct work;
144 struct kfifo delayed_work_fifo;
145 atomic_t connected;
146 struct input_dev *delayed_input;
147
2f31c525 148 unsigned long quirks;
206d7c68 149 unsigned long capabilities;
2f31c525 150
5a2b190c
PH		 151 struct hidpp_battery battery;
152};
2f31c525 153
f677bb15 154/* HID++ 1.0 error codes */
2f31c525
BT		 155#define HIDPP_ERROR 0x8f
156#define HIDPP_ERROR_SUCCESS 0x00
157#define HIDPP_ERROR_INVALID_SUBID 0x01
158#define HIDPP_ERROR_INVALID_ADRESS 0x02
159#define HIDPP_ERROR_INVALID_VALUE 0x03
160#define HIDPP_ERROR_CONNECT_FAIL 0x04
161#define HIDPP_ERROR_TOO_MANY_DEVICES 0x05
162#define HIDPP_ERROR_ALREADY_EXISTS 0x06
163#define HIDPP_ERROR_BUSY 0x07
164#define HIDPP_ERROR_UNKNOWN_DEVICE 0x08
165#define HIDPP_ERROR_RESOURCE_ERROR 0x09
166#define HIDPP_ERROR_REQUEST_UNAVAILABLE 0x0a
167#define HIDPP_ERROR_INVALID_PARAM_VALUE 0x0b
168#define HIDPP_ERROR_WRONG_PIN_CODE 0x0c
f677bb15
PW		 169/* HID++ 2.0 error codes */
170#define HIDPP20_ERROR 0xff
2f31c525 171
c39e3d5f
BT		 172static void hidpp_connect_event(struct hidpp_device *hidpp_dev);
173
2f31c525
BT		 174static int __hidpp_send_report(struct hid_device *hdev,
175 struct hidpp_report *hidpp_report)
176{
7bfd2927 177 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2f31c525
BT		 178 int fields_count, ret;
179
7bfd2927
SW		 180 hidpp = hid_get_drvdata(hdev);
181
2f31c525
BT		 182 switch (hidpp_report->report_id) {
183 case REPORT_ID_HIDPP_SHORT:
184 fields_count = HIDPP_REPORT_SHORT_LENGTH;
185 break;
186 case REPORT_ID_HIDPP_LONG:
187 fields_count = HIDPP_REPORT_LONG_LENGTH;
188 break;
a5ce8f5b
SW		 189 case REPORT_ID_HIDPP_VERY_LONG:
190 fields_count = HIDPP_REPORT_VERY_LONG_LENGTH;
191 break;
2f31c525
BT		 192 default:
193 return -ENODEV;
194 }
195
196 /*
197 * set the device_index as the receiver, it will be overwritten by
198 * hid_hw_request if needed
199 */
200 hidpp_report->device_index = 0xff;
201
7bfd2927
SW		 202 if (hidpp->quirks & HIDPP_QUIRK_FORCE_OUTPUT_REPORTS) {
203 ret = hid_hw_output_report(hdev, (u8 *)hidpp_report, fields_count);
204 } else {
205 ret = hid_hw_raw_request(hdev, hidpp_report->report_id,
206 (u8 *)hidpp_report, fields_count, HID_OUTPUT_REPORT,
207 HID_REQ_SET_REPORT);
208 }
2f31c525
BT		 209
210 return ret == fields_count ? 0 : -1;
211}
212
8c9952b2
BT		 213/**
214 * hidpp_send_message_sync() returns 0 in case of success, and something else
215 * in case of a failure.
216 * - If ' something else' is positive, that means that an error has been raised
217 * by the protocol itself.
218 * - If ' something else' is negative, that means that we had a classic error
219 * (-ENOMEM, -EPIPE, etc...)
220 */
2f31c525
BT		 221static int hidpp_send_message_sync(struct hidpp_device *hidpp,
222 struct hidpp_report *message,
223 struct hidpp_report *response)
224{
225 int ret;
226
227 mutex_lock(&hidpp->send_mutex);
228
229 hidpp->send_receive_buf = response;
230 hidpp->answer_available = false;
231
232 /*
233 * So that we can later validate the answer when it arrives
234 * in hidpp_raw_event
235 */
236 *response = *message;
237
238 ret = __hidpp_send_report(hidpp->hid_dev, message);
239
240 if (ret) {
241 dbg_hid("__hidpp_send_report returned err: %d\n", ret);
242 memset(response, 0, sizeof(struct hidpp_report));
243 goto exit;
244 }
245
246 if (!wait_event_timeout(hidpp->wait, hidpp->answer_available,
247 5*HZ)) {
248 dbg_hid("%s:timeout waiting for response\n", __func__);
249 memset(response, 0, sizeof(struct hidpp_report));
250 ret = -ETIMEDOUT;
251 }
252
253 if (response->report_id == REPORT_ID_HIDPP_SHORT &&
f677bb15
PW		 254 response->rap.sub_id == HIDPP_ERROR) {
255 ret = response->rap.params[1];
256 dbg_hid("%s:got hidpp error %02X\n", __func__, ret);
257 goto exit;
258 }
259
a5ce8f5b
SW		 260 if ((response->report_id == REPORT_ID_HIDPP_LONG ||
261 response->report_id == REPORT_ID_HIDPP_VERY_LONG) &&
262 response->fap.feature_index == HIDPP20_ERROR) {
2f31c525 263 ret = response->fap.params[1];
f677bb15 264 dbg_hid("%s:got hidpp 2.0 error %02X\n", __func__, ret);
2f31c525
BT		 265 goto exit;
266 }
267
268exit:
269 mutex_unlock(&hidpp->send_mutex);
270 return ret;
271
272}
273
274static int hidpp_send_fap_command_sync(struct hidpp_device *hidpp,
275 u8 feat_index, u8 funcindex_clientid, u8 *params, int param_count,
276 struct hidpp_report *response)
277{
3e7830ce 278 struct hidpp_report *message;
2f31c525
BT		 279 int ret;
280
281 if (param_count > sizeof(message->fap.params))
282 return -EINVAL;
283
3e7830ce
DC		 284 message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
285 if (!message)
286 return -ENOMEM;
a5ce8f5b
SW		 287
288 if (param_count > (HIDPP_REPORT_LONG_LENGTH - 4))
289 message->report_id = REPORT_ID_HIDPP_VERY_LONG;
290 else
291 message->report_id = REPORT_ID_HIDPP_LONG;
2f31c525
BT		 292 message->fap.feature_index = feat_index;
293 message->fap.funcindex_clientid = funcindex_clientid;
294 memcpy(&message->fap.params, params, param_count);
295
296 ret = hidpp_send_message_sync(hidpp, message, response);
297 kfree(message);
298 return ret;
299}
300
33797820
BT		 301static int hidpp_send_rap_command_sync(struct hidpp_device *hidpp_dev,
302 u8 report_id, u8 sub_id, u8 reg_address, u8 *params, int param_count,
303 struct hidpp_report *response)
304{
3e7830ce 305 struct hidpp_report *message;
a5ce8f5b 306 int ret, max_count;
33797820 307
a5ce8f5b
SW		 308 switch (report_id) {
309 case REPORT_ID_HIDPP_SHORT:
310 max_count = HIDPP_REPORT_SHORT_LENGTH - 4;
311 break;
312 case REPORT_ID_HIDPP_LONG:
313 max_count = HIDPP_REPORT_LONG_LENGTH - 4;
314 break;
315 case REPORT_ID_HIDPP_VERY_LONG:
316 max_count = HIDPP_REPORT_VERY_LONG_LENGTH - 4;
317 break;
318 default:
33797820 319 return -EINVAL;
a5ce8f5b 320 }
33797820 321
a5ce8f5b 322 if (param_count > max_count)
33797820
BT		 323 return -EINVAL;
324
3e7830ce
DC		 325 message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
326 if (!message)
327 return -ENOMEM;
33797820
BT		 328 message->report_id = report_id;
329 message->rap.sub_id = sub_id;
330 message->rap.reg_address = reg_address;
331 memcpy(&message->rap.params, params, param_count);
332
333 ret = hidpp_send_message_sync(hidpp_dev, message, response);
334 kfree(message);
335 return ret;
336}
337
c39e3d5f
BT		 338static void delayed_work_cb(struct work_struct *work)
339{
340 struct hidpp_device *hidpp = container_of(work, struct hidpp_device,
341 work);
342 hidpp_connect_event(hidpp);
343}
344
2f31c525
BT		 345static inline bool hidpp_match_answer(struct hidpp_report *question,
346 struct hidpp_report *answer)
347{
348 return (answer->fap.feature_index == question->fap.feature_index) &&
349 (answer->fap.funcindex_clientid == question->fap.funcindex_clientid);
350}
351
352static inline bool hidpp_match_error(struct hidpp_report *question,
353 struct hidpp_report *answer)
354{
f677bb15
PW		 355 return ((answer->rap.sub_id == HIDPP_ERROR) ||
356 (answer->fap.feature_index == HIDPP20_ERROR)) &&
2f31c525
BT		 357 (answer->fap.funcindex_clientid == question->fap.feature_index) &&
358 (answer->fap.params[0] == question->fap.funcindex_clientid);
359}
360
c39e3d5f
BT		 361static inline bool hidpp_report_is_connect_event(struct hidpp_report *report)
362{
363 return (report->report_id == REPORT_ID_HIDPP_SHORT) &&
364 (report->rap.sub_id == 0x41);
365}
366
a0e625f8
BT		 367/**
368 * hidpp_prefix_name() prefixes the current given name with "Logitech ".
369 */
370static void hidpp_prefix_name(char **name, int name_length)
371{
372#define PREFIX_LENGTH 9 /* "Logitech " */
373
374 int new_length;
375 char *new_name;
376
377 if (name_length > PREFIX_LENGTH &&
378 strncmp(*name, "Logitech ", PREFIX_LENGTH) == 0)
379 /* The prefix has is already in the name */
380 return;
381
382 new_length = PREFIX_LENGTH + name_length;
383 new_name = kzalloc(new_length, GFP_KERNEL);
384 if (!new_name)
385 return;
386
387 snprintf(new_name, new_length, "Logitech %s", *name);
388
389 kfree(*name);
390
391 *name = new_name;
392}
393
33797820
BT		 394/* -------------------------------------------------------------------------- */
395/* HIDP++ 1.0 commands */
396/* -------------------------------------------------------------------------- */
397
398#define HIDPP_SET_REGISTER 0x80
399#define HIDPP_GET_REGISTER 0x81
400#define HIDPP_SET_LONG_REGISTER 0x82
401#define HIDPP_GET_LONG_REGISTER 0x83
402
95c3d002
HC		 403/**
404 * hidpp10_set_register_bit() - Sets a single bit in a HID++ 1.0 register.
405 * @hidpp_dev: the device to set the register on.
406 * @register_address: the address of the register to modify.
407 * @byte: the byte of the register to modify. Should be less than 3.
408 * Return: 0 if successful, otherwise a negative error code.
409 */
410static int hidpp10_set_register_bit(struct hidpp_device *hidpp_dev,
411 u8 register_address, u8 byte, u8 bit)
7f7ce2a2
BT		 412{
413 struct hidpp_report response;
414 int ret;
415 u8 params[3] = { 0 };
416
417 ret = hidpp_send_rap_command_sync(hidpp_dev,
95c3d002
HC		 418 REPORT_ID_HIDPP_SHORT,
419 HIDPP_GET_REGISTER,
420 register_address,
421 NULL, 0, &response);
7f7ce2a2
BT		 422 if (ret)
423 return ret;
424
425 memcpy(params, response.rap.params, 3);
426
95c3d002 427 params[byte] |= BIT(bit);
7f7ce2a2
BT		 428
429 return hidpp_send_rap_command_sync(hidpp_dev,
95c3d002
HC		 430 REPORT_ID_HIDPP_SHORT,
431 HIDPP_SET_REGISTER,
432 register_address,
433 params, 3, &response);
434}
435
436
437#define HIDPP_REG_GENERAL 0x00
438
439static int hidpp10_enable_battery_reporting(struct hidpp_device *hidpp_dev)
440{
441 return hidpp10_set_register_bit(hidpp_dev, HIDPP_REG_GENERAL, 0, 4);
442}
443
444#define HIDPP_REG_FEATURES 0x01
445
446/* On HID++ 1.0 devices, high-res scroll was called "scrolling acceleration". */
447static int hidpp10_enable_scrolling_acceleration(struct hidpp_device *hidpp_dev)
448{
449 return hidpp10_set_register_bit(hidpp_dev, HIDPP_REG_FEATURES, 0, 6);
7f7ce2a2
BT		 450}
451
452#define HIDPP_REG_BATTERY_STATUS 0x07
453
454static int hidpp10_battery_status_map_level(u8 param)
455{
456 int level;
457
458 switch (param) {
459 case 1 ... 2:
460 level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
461 break;
462 case 3 ... 4:
463 level = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
464 break;
465 case 5 ... 6:
466 level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
467 break;
468 case 7:
469 level = POWER_SUPPLY_CAPACITY_LEVEL_HIGH;
470 break;
471 default:
472 level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
473 }
474
475 return level;
476}
477
478static int hidpp10_battery_status_map_status(u8 param)
479{
480 int status;
481
482 switch (param) {
483 case 0x00:
484 /* discharging (in use) */
485 status = POWER_SUPPLY_STATUS_DISCHARGING;
486 break;
487 case 0x21: /* (standard) charging */
488 case 0x24: /* fast charging */
489 case 0x25: /* slow charging */
490 status = POWER_SUPPLY_STATUS_CHARGING;
491 break;
492 case 0x26: /* topping charge */
493 case 0x22: /* charge complete */
494 status = POWER_SUPPLY_STATUS_FULL;
495 break;
496 case 0x20: /* unknown */
497 status = POWER_SUPPLY_STATUS_UNKNOWN;
498 break;
499 /*
500 * 0x01...0x1F = reserved (not charging)
501 * 0x23 = charging error
502 * 0x27..0xff = reserved
503 */
504 default:
505 status = POWER_SUPPLY_STATUS_NOT_CHARGING;
506 break;
507 }
508
509 return status;
510}
511
512static int hidpp10_query_battery_status(struct hidpp_device *hidpp)
513{
514 struct hidpp_report response;
515 int ret, status;
516
517 ret = hidpp_send_rap_command_sync(hidpp,
518 REPORT_ID_HIDPP_SHORT,
519 HIDPP_GET_REGISTER,
520 HIDPP_REG_BATTERY_STATUS,
521 NULL, 0, &response);
522 if (ret)
523 return ret;
524
525 hidpp->battery.level =
526 hidpp10_battery_status_map_level(response.rap.params[0]);
527 status = hidpp10_battery_status_map_status(response.rap.params[1]);
528 hidpp->battery.status = status;
529 /* the capacity is only available when discharging or full */
530 hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
531 status == POWER_SUPPLY_STATUS_FULL;
532
533 return 0;
534}
535
536#define HIDPP_REG_BATTERY_MILEAGE 0x0D
537
538static int hidpp10_battery_mileage_map_status(u8 param)
539{
540 int status;
541
542 switch (param >> 6) {
543 case 0x00:
544 /* discharging (in use) */
545 status = POWER_SUPPLY_STATUS_DISCHARGING;
546 break;
547 case 0x01: /* charging */
548 status = POWER_SUPPLY_STATUS_CHARGING;
549 break;
550 case 0x02: /* charge complete */
551 status = POWER_SUPPLY_STATUS_FULL;
552 break;
553 /*
554 * 0x03 = charging error
555 */
556 default:
557 status = POWER_SUPPLY_STATUS_NOT_CHARGING;
558 break;
559 }
560
561 return status;
562}
563
564static int hidpp10_query_battery_mileage(struct hidpp_device *hidpp)
565{
566 struct hidpp_report response;
567 int ret, status;
568
569 ret = hidpp_send_rap_command_sync(hidpp,
570 REPORT_ID_HIDPP_SHORT,
571 HIDPP_GET_REGISTER,
572 HIDPP_REG_BATTERY_MILEAGE,
573 NULL, 0, &response);
574 if (ret)
575 return ret;
576
577 hidpp->battery.capacity = response.rap.params[0];
578 status = hidpp10_battery_mileage_map_status(response.rap.params[2]);
579 hidpp->battery.status = status;
580 /* the capacity is only available when discharging or full */
581 hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
582 status == POWER_SUPPLY_STATUS_FULL;
583
584 return 0;
585}
586
587static int hidpp10_battery_event(struct hidpp_device *hidpp, u8 *data, int size)
588{
589 struct hidpp_report *report = (struct hidpp_report *)data;
590 int status, capacity, level;
591 bool changed;
592
593 if (report->report_id != REPORT_ID_HIDPP_SHORT)
594 return 0;
595
596 switch (report->rap.sub_id) {
597 case HIDPP_REG_BATTERY_STATUS:
598 capacity = hidpp->battery.capacity;
599 level = hidpp10_battery_status_map_level(report->rawbytes[1]);
600 status = hidpp10_battery_status_map_status(report->rawbytes[2]);
601 break;
602 case HIDPP_REG_BATTERY_MILEAGE:
603 capacity = report->rap.params[0];
604 level = hidpp->battery.level;
605 status = hidpp10_battery_mileage_map_status(report->rawbytes[3]);
606 break;
607 default:
608 return 0;
609 }
610
611 changed = capacity != hidpp->battery.capacity ||
612 level != hidpp->battery.level ||
613 status != hidpp->battery.status;
614
615 /* the capacity is only available when discharging or full */
616 hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
617 status == POWER_SUPPLY_STATUS_FULL;
618
619 if (changed) {
620 hidpp->battery.level = level;
621 hidpp->battery.status = status;
622 if (hidpp->battery.ps)
623 power_supply_changed(hidpp->battery.ps);
624 }
625
626 return 0;
627}
628
33797820 629#define HIDPP_REG_PAIRING_INFORMATION 0xB5
843c624e
BT		 630#define HIDPP_EXTENDED_PAIRING 0x30
631#define HIDPP_DEVICE_NAME 0x40
33797820 632
843c624e 633static char *hidpp_unifying_get_name(struct hidpp_device *hidpp_dev)
33797820
BT		 634{
635 struct hidpp_report response;
636 int ret;
843c624e 637 u8 params[1] = { HIDPP_DEVICE_NAME };
33797820
BT		 638 char *name;
639 int len;
640
641 ret = hidpp_send_rap_command_sync(hidpp_dev,
642 REPORT_ID_HIDPP_SHORT,
643 HIDPP_GET_LONG_REGISTER,
644 HIDPP_REG_PAIRING_INFORMATION,
645 params, 1, &response);
646 if (ret)
647 return NULL;
648
649 len = response.rap.params[1];
650
3a034a7a
PW		 651 if (2 + len > sizeof(response.rap.params))
652 return NULL;
653
33797820
BT		 654 name = kzalloc(len + 1, GFP_KERNEL);
655 if (!name)
656 return NULL;
657
658 memcpy(name, &response.rap.params[2], len);
a0e625f8
BT		 659
660 /* include the terminating '\0' */
661 hidpp_prefix_name(&name, len + 1);
662
33797820
BT		 663 return name;
664}
665
843c624e
BT		 666static int hidpp_unifying_get_serial(struct hidpp_device *hidpp, u32 *serial)
667{
668 struct hidpp_report response;
669 int ret;
670 u8 params[1] = { HIDPP_EXTENDED_PAIRING };
671
672 ret = hidpp_send_rap_command_sync(hidpp,
673 REPORT_ID_HIDPP_SHORT,
674 HIDPP_GET_LONG_REGISTER,
675 HIDPP_REG_PAIRING_INFORMATION,
676 params, 1, &response);
677 if (ret)
678 return ret;
679
680 /*
681 * We don't care about LE or BE, we will output it as a string
682 * with %4phD, so we need to keep the order.
683 */
684 *serial = *((u32 *)&response.rap.params[1]);
685 return 0;
686}
687
688static int hidpp_unifying_init(struct hidpp_device *hidpp)
689{
690 struct hid_device *hdev = hidpp->hid_dev;
691 const char *name;
692 u32 serial;
693 int ret;
694
695 ret = hidpp_unifying_get_serial(hidpp, &serial);
696 if (ret)
697 return ret;
698
699 snprintf(hdev->uniq, sizeof(hdev->uniq), "%04x-%4phD",
700 hdev->product, &serial);
701 dbg_hid("HID++ Unifying: Got serial: %s\n", hdev->uniq);
702
703 name = hidpp_unifying_get_name(hidpp);
704 if (!name)
705 return -EIO;
706
707 snprintf(hdev->name, sizeof(hdev->name), "%s", name);
708 dbg_hid("HID++ Unifying: Got name: %s\n", name);
709
710 kfree(name);
711 return 0;
712}
713
2f31c525
BT		 714/* -------------------------------------------------------------------------- */
715/* 0x0000: Root */
716/* -------------------------------------------------------------------------- */
717
718#define HIDPP_PAGE_ROOT 0x0000
719#define HIDPP_PAGE_ROOT_IDX 0x00
720
721#define CMD_ROOT_GET_FEATURE 0x01
722#define CMD_ROOT_GET_PROTOCOL_VERSION 0x11
723
724static int hidpp_root_get_feature(struct hidpp_device *hidpp, u16 feature,
725 u8 *feature_index, u8 *feature_type)
726{
727 struct hidpp_report response;
728 int ret;
729 u8 params[2] = { feature >> 8, feature & 0x00FF };
730
731 ret = hidpp_send_fap_command_sync(hidpp,
732 HIDPP_PAGE_ROOT_IDX,
733 CMD_ROOT_GET_FEATURE,
734 params, 2, &response);
735 if (ret)
736 return ret;
737
a9525b80
BT		 738 if (response.fap.params[0] == 0)
739 return -ENOENT;
740
2f31c525
BT		 741 *feature_index = response.fap.params[0];
742 *feature_type = response.fap.params[1];
743
744 return ret;
745}
746
747static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp)
748{
749 struct hidpp_report response;
750 int ret;
751
752 ret = hidpp_send_fap_command_sync(hidpp,
753 HIDPP_PAGE_ROOT_IDX,
754 CMD_ROOT_GET_PROTOCOL_VERSION,
755 NULL, 0, &response);
756
552f12eb 757 if (ret == HIDPP_ERROR_INVALID_SUBID) {
2f31c525
BT		 758 hidpp->protocol_major = 1;
759 hidpp->protocol_minor = 0;
760 return 0;
761 }
762
552f12eb
BT		 763 /* the device might not be connected */
764 if (ret == HIDPP_ERROR_RESOURCE_ERROR)
765 return -EIO;
766
8c9952b2
BT		 767 if (ret > 0) {
768 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
769 __func__, ret);
770 return -EPROTO;
771 }
2f31c525 772 if (ret)
8c9952b2 773 return ret;
2f31c525
BT		 774
775 hidpp->protocol_major = response.fap.params[0];
776 hidpp->protocol_minor = response.fap.params[1];
777
778 return ret;
779}
780
781static bool hidpp_is_connected(struct hidpp_device *hidpp)
782{
783 int ret;
784
785 ret = hidpp_root_get_protocol_version(hidpp);
786 if (!ret)
787 hid_dbg(hidpp->hid_dev, "HID++ %u.%u device connected.\n",
788 hidpp->protocol_major, hidpp->protocol_minor);
789 return ret == 0;
790}
791
792/* -------------------------------------------------------------------------- */
793/* 0x0005: GetDeviceNameType */
794/* -------------------------------------------------------------------------- */
795
796#define HIDPP_PAGE_GET_DEVICE_NAME_TYPE 0x0005
797
798#define CMD_GET_DEVICE_NAME_TYPE_GET_COUNT 0x01
799#define CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME 0x11
800#define CMD_GET_DEVICE_NAME_TYPE_GET_TYPE 0x21
801
802static int hidpp_devicenametype_get_count(struct hidpp_device *hidpp,
803 u8 feature_index, u8 *nameLength)
804{
805 struct hidpp_report response;
806 int ret;
807
808 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
809 CMD_GET_DEVICE_NAME_TYPE_GET_COUNT, NULL, 0, &response);
810
8c9952b2
BT		 811 if (ret > 0) {
812 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
813 __func__, ret);
814 return -EPROTO;
815 }
2f31c525 816 if (ret)
8c9952b2 817 return ret;
2f31c525
BT		 818
819 *nameLength = response.fap.params[0];
820
821 return ret;
822}
823
824static int hidpp_devicenametype_get_device_name(struct hidpp_device *hidpp,
825 u8 feature_index, u8 char_index, char *device_name, int len_buf)
826{
827 struct hidpp_report response;
828 int ret, i;
829 int count;
830
831 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
832 CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME, &char_index, 1,
833 &response);
834
8c9952b2
BT		 835 if (ret > 0) {
836 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
837 __func__, ret);
838 return -EPROTO;
839 }
2f31c525 840 if (ret)
8c9952b2 841 return ret;
2f31c525 842
a5ce8f5b
SW		 843 switch (response.report_id) {
844 case REPORT_ID_HIDPP_VERY_LONG:
845 count = HIDPP_REPORT_VERY_LONG_LENGTH - 4;
846 break;
847 case REPORT_ID_HIDPP_LONG:
2f31c525 848 count = HIDPP_REPORT_LONG_LENGTH - 4;
a5ce8f5b
SW		 849 break;
850 case REPORT_ID_HIDPP_SHORT:
2f31c525 851 count = HIDPP_REPORT_SHORT_LENGTH - 4;
a5ce8f5b
SW		 852 break;
853 default:
854 return -EPROTO;
855 }
2f31c525
BT		 856
857 if (len_buf < count)
858 count = len_buf;
859
860 for (i = 0; i < count; i++)
861 device_name[i] = response.fap.params[i];
862
863 return count;
864}
865
02cc097e 866static char *hidpp_get_device_name(struct hidpp_device *hidpp)
2f31c525
BT		 867{
868 u8 feature_type;
869 u8 feature_index;
870 u8 __name_length;
871 char *name;
872 unsigned index = 0;
873 int ret;
874
875 ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_GET_DEVICE_NAME_TYPE,
876 &feature_index, &feature_type);
877 if (ret)
02cc097e 878 return NULL;
2f31c525
BT		 879
880 ret = hidpp_devicenametype_get_count(hidpp, feature_index,
881 &__name_length);
882 if (ret)
02cc097e 883 return NULL;
2f31c525
BT		 884
885 name = kzalloc(__name_length + 1, GFP_KERNEL);
886 if (!name)
02cc097e 887 return NULL;
2f31c525 888
1430ee73
PW		 889 while (index < __name_length) {
890 ret = hidpp_devicenametype_get_device_name(hidpp,
2f31c525
BT		 891 feature_index, index, name + index,
892 __name_length - index);
1430ee73
PW		 893 if (ret <= 0) {
894 kfree(name);
895 return NULL;
896 }
897 index += ret;
898 }
2f31c525 899
a0e625f8
BT		 900 /* include the terminating '\0' */
901 hidpp_prefix_name(&name, __name_length + 1);
902
2f31c525 903 return name;
2f31c525
BT		 904}
905
5a2b190c
PH		 906/* -------------------------------------------------------------------------- */
907/* 0x1000: Battery level status */
908/* -------------------------------------------------------------------------- */
909
910#define HIDPP_PAGE_BATTERY_LEVEL_STATUS 0x1000
911
912#define CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_LEVEL_STATUS 0x00
913#define CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_CAPABILITY 0x10
914
915#define EVENT_BATTERY_LEVEL_STATUS_BROADCAST 0x00
916
5b036ea1
BT		 917#define FLAG_BATTERY_LEVEL_DISABLE_OSD BIT(0)
918#define FLAG_BATTERY_LEVEL_MILEAGE BIT(1)
919#define FLAG_BATTERY_LEVEL_RECHARGEABLE BIT(2)
920
921static int hidpp_map_battery_level(int capacity)
922{
923 if (capacity < 11)
924 return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
925 else if (capacity < 31)
926 return POWER_SUPPLY_CAPACITY_LEVEL_LOW;
927 else if (capacity < 81)
928 return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
929 return POWER_SUPPLY_CAPACITY_LEVEL_FULL;
930}
931
14f437a1 932static int hidpp20_batterylevel_map_status_capacity(u8 data[3], int *capacity,
5b036ea1
BT		 933 int *next_capacity,
934 int *level)
5a2b190c
PH		 935{
936 int status;
5a2b190c 937
14f437a1
BT		 938 *capacity = data[0];
939 *next_capacity = data[1];
5b036ea1 940 *level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
5a2b190c 941
14f437a1
BT		 942 /* When discharging, we can rely on the device reported capacity.
943 * For all other states the device reports 0 (unknown).
5a2b190c
PH		 944 */
945 switch (data[2]) {
946 case 0: /* discharging (in use) */
947 status = POWER_SUPPLY_STATUS_DISCHARGING;
5b036ea1 948 *level = hidpp_map_battery_level(*capacity);
5a2b190c
PH		 949 break;
950 case 1: /* recharging */
951 status = POWER_SUPPLY_STATUS_CHARGING;
5a2b190c
PH		 952 break;
953 case 2: /* charge in final stage */
954 status = POWER_SUPPLY_STATUS_CHARGING;
5a2b190c
PH		 955 break;
956 case 3: /* charge complete */
957 status = POWER_SUPPLY_STATUS_FULL;
5b036ea1 958 *level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
14f437a1 959 *capacity = 100;
5a2b190c
PH		 960 break;
961 case 4: /* recharging below optimal speed */
962 status = POWER_SUPPLY_STATUS_CHARGING;
5a2b190c
PH		 963 break;
964 /* 5 = invalid battery type
965 6 = thermal error
966 7 = other charging error */
967 default:
968 status = POWER_SUPPLY_STATUS_NOT_CHARGING;
5a2b190c
PH		 969 break;
970 }
971
5a2b190c
PH		 972 return status;
973}
974
14f437a1
BT		 975static int hidpp20_batterylevel_get_battery_capacity(struct hidpp_device *hidpp,
976 u8 feature_index,
977 int *status,
978 int *capacity,
5b036ea1
BT		 979 int *next_capacity,
980 int *level)
5a2b190c
PH		 981{
982 struct hidpp_report response;
983 int ret;
984 u8 *params = (u8 *)response.fap.params;
985
986 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
987 CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_LEVEL_STATUS,
988 NULL, 0, &response);
989 if (ret > 0) {
990 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
991 __func__, ret);
992 return -EPROTO;
993 }
994 if (ret)
995 return ret;
996
14f437a1 997 *status = hidpp20_batterylevel_map_status_capacity(params, capacity,
5b036ea1
BT		 998 next_capacity,
999 level);
1000
1001 return 0;
1002}
1003
1004static int hidpp20_batterylevel_get_battery_info(struct hidpp_device *hidpp,
1005 u8 feature_index)
1006{
1007 struct hidpp_report response;
1008 int ret;
1009 u8 *params = (u8 *)response.fap.params;
1010 unsigned int level_count, flags;
1011
1012 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
1013 CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_CAPABILITY,
1014 NULL, 0, &response);
1015 if (ret > 0) {
1016 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
1017 __func__, ret);
1018 return -EPROTO;
1019 }
1020 if (ret)
1021 return ret;
1022
1023 level_count = params[0];
1024 flags = params[1];
1025
1026 if (level_count < 10 || !(flags & FLAG_BATTERY_LEVEL_MILEAGE))
1027 hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS;
1028 else
1029 hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_MILEAGE;
5a2b190c
PH		 1030
1031 return 0;
1032}
1033
1034static int hidpp20_query_battery_info(struct hidpp_device *hidpp)
1035{
1036 u8 feature_type;
1037 int ret;
5b036ea1 1038 int status, capacity, next_capacity, level;
5a2b190c 1039
696ecef9 1040 if (hidpp->battery.feature_index == 0xff) {
5a2b190c
PH		 1041 ret = hidpp_root_get_feature(hidpp,
1042 HIDPP_PAGE_BATTERY_LEVEL_STATUS,
1043 &hidpp->battery.feature_index,
1044 &feature_type);
1045 if (ret)
1046 return ret;
1047 }
1048
14f437a1
BT		 1049 ret = hidpp20_batterylevel_get_battery_capacity(hidpp,
1050 hidpp->battery.feature_index,
1051 &status, &capacity,
5b036ea1
BT		 1052 &next_capacity, &level);
1053 if (ret)
1054 return ret;
1055
1056 ret = hidpp20_batterylevel_get_battery_info(hidpp,
1057 hidpp->battery.feature_index);
5a2b190c
PH		 1058 if (ret)
1059 return ret;
1060
1061 hidpp->battery.status = status;
14f437a1 1062 hidpp->battery.capacity = capacity;
5b036ea1 1063 hidpp->battery.level = level;
284f8d75
BT		 1064 /* the capacity is only available when discharging or full */
1065 hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
1066 status == POWER_SUPPLY_STATUS_FULL;
5a2b190c
PH		 1067
1068 return 0;
1069}
1070
1071static int hidpp20_battery_event(struct hidpp_device *hidpp,
1072 u8 *data, int size)
1073{
1074 struct hidpp_report *report = (struct hidpp_report *)data;
5b036ea1 1075 int status, capacity, next_capacity, level;
5a2b190c
PH		 1076 bool changed;
1077
1078 if (report->fap.feature_index != hidpp->battery.feature_index ||
1079 report->fap.funcindex_clientid != EVENT_BATTERY_LEVEL_STATUS_BROADCAST)
1080 return 0;
1081
14f437a1
BT		 1082 status = hidpp20_batterylevel_map_status_capacity(report->fap.params,
1083 &capacity,
5b036ea1
BT		 1084 &next_capacity,
1085 &level);
5a2b190c 1086
284f8d75
BT		 1087 /* the capacity is only available when discharging or full */
1088 hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
1089 status == POWER_SUPPLY_STATUS_FULL;
1090
14f437a1 1091 changed = capacity != hidpp->battery.capacity ||
5b036ea1 1092 level != hidpp->battery.level ||
5a2b190c
PH		 1093 status != hidpp->battery.status;
1094
1095 if (changed) {
5b036ea1 1096 hidpp->battery.level = level;
14f437a1 1097 hidpp->battery.capacity = capacity;
5a2b190c
PH		 1098 hidpp->battery.status = status;
1099 if (hidpp->battery.ps)
1100 power_supply_changed(hidpp->battery.ps);
1101 }
1102
1103 return 0;
1104}
1105
1106static enum power_supply_property hidpp_battery_props[] = {
284f8d75 1107 POWER_SUPPLY_PROP_ONLINE,
5a2b190c 1108 POWER_SUPPLY_PROP_STATUS,
3861e6ca 1109 POWER_SUPPLY_PROP_SCOPE,
32043d0f
BT		 1110 POWER_SUPPLY_PROP_MODEL_NAME,
1111 POWER_SUPPLY_PROP_MANUFACTURER,
1112 POWER_SUPPLY_PROP_SERIAL_NUMBER,
5b036ea1
BT		 1113 0, /* placeholder for POWER_SUPPLY_PROP_CAPACITY, */
1114 0, /* placeholder for POWER_SUPPLY_PROP_CAPACITY_LEVEL, */
5a2b190c
PH		 1115};
1116
1117static int hidpp_battery_get_property(struct power_supply *psy,
1118 enum power_supply_property psp,
1119 union power_supply_propval *val)
1120{
1121 struct hidpp_device *hidpp = power_supply_get_drvdata(psy);
1122 int ret = 0;
1123
1124 switch(psp) {
1125 case POWER_SUPPLY_PROP_STATUS:
1126 val->intval = hidpp->battery.status;
1127 break;
1128 case POWER_SUPPLY_PROP_CAPACITY:
14f437a1 1129 val->intval = hidpp->battery.capacity;
5a2b190c 1130 break;
5b036ea1
BT		 1131 case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
1132 val->intval = hidpp->battery.level;
1133 break;
3861e6ca
BN		 1134 case POWER_SUPPLY_PROP_SCOPE:
1135 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
1136 break;
284f8d75
BT		 1137 case POWER_SUPPLY_PROP_ONLINE:
1138 val->intval = hidpp->battery.online;
1139 break;
32043d0f
BT		 1140 case POWER_SUPPLY_PROP_MODEL_NAME:
1141 if (!strncmp(hidpp->name, "Logitech ", 9))
1142 val->strval = hidpp->name + 9;
1143 else
1144 val->strval = hidpp->name;
1145 break;
1146 case POWER_SUPPLY_PROP_MANUFACTURER:
1147 val->strval = "Logitech";
1148 break;
1149 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
1150 val->strval = hidpp->hid_dev->uniq;
1151 break;
5a2b190c
PH		 1152 default:
1153 ret = -EINVAL;
1154 break;
1155 }
1156
1157 return ret;
1158}
1159
696ecef9
BT		 1160/* -------------------------------------------------------------------------- */
1161/* 0x4301: Solar Keyboard */
1162/* -------------------------------------------------------------------------- */
1163
1164#define HIDPP_PAGE_SOLAR_KEYBOARD 0x4301
1165
1166#define CMD_SOLAR_SET_LIGHT_MEASURE 0x00
1167
1168#define EVENT_SOLAR_BATTERY_BROADCAST 0x00
1169#define EVENT_SOLAR_BATTERY_LIGHT_MEASURE 0x10
1170#define EVENT_SOLAR_CHECK_LIGHT_BUTTON 0x20
1171
1172static int hidpp_solar_request_battery_event(struct hidpp_device *hidpp)
1173{
1174 struct hidpp_report response;
1175 u8 params[2] = { 1, 1 };
1176 u8 feature_type;
1177 int ret;
1178
1179 if (hidpp->battery.feature_index == 0xff) {
1180 ret = hidpp_root_get_feature(hidpp,
1181 HIDPP_PAGE_SOLAR_KEYBOARD,
1182 &hidpp->battery.solar_feature_index,
1183 &feature_type);
1184 if (ret)
1185 return ret;
1186 }
1187
1188 ret = hidpp_send_fap_command_sync(hidpp,
1189 hidpp->battery.solar_feature_index,
1190 CMD_SOLAR_SET_LIGHT_MEASURE,
1191 params, 2, &response);
1192 if (ret > 0) {
1193 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
1194 __func__, ret);
1195 return -EPROTO;
1196 }
1197 if (ret)
1198 return ret;
1199
1200 hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_MILEAGE;
1201
1202 return 0;
1203}
1204
1205static int hidpp_solar_battery_event(struct hidpp_device *hidpp,
1206 u8 *data, int size)
1207{
1208 struct hidpp_report *report = (struct hidpp_report *)data;
1209 int capacity, lux, status;
1210 u8 function;
1211
1212 function = report->fap.funcindex_clientid;
1213
1214
1215 if (report->fap.feature_index != hidpp->battery.solar_feature_index ||
1216 !(function == EVENT_SOLAR_BATTERY_BROADCAST ||
1217 function == EVENT_SOLAR_BATTERY_LIGHT_MEASURE ||
1218 function == EVENT_SOLAR_CHECK_LIGHT_BUTTON))
1219 return 0;
1220
1221 capacity = report->fap.params[0];
1222
1223 switch (function) {
1224 case EVENT_SOLAR_BATTERY_LIGHT_MEASURE:
1225 lux = (report->fap.params[1] << 8) | report->fap.params[2];
1226 if (lux > 200)
1227 status = POWER_SUPPLY_STATUS_CHARGING;
1228 else
1229 status = POWER_SUPPLY_STATUS_DISCHARGING;
1230 break;
1231 case EVENT_SOLAR_CHECK_LIGHT_BUTTON:
1232 default:
1233 if (capacity < hidpp->battery.capacity)
1234 status = POWER_SUPPLY_STATUS_DISCHARGING;
1235 else
1236 status = POWER_SUPPLY_STATUS_CHARGING;
1237
1238 }
1239
1240 if (capacity == 100)
1241 status = POWER_SUPPLY_STATUS_FULL;
1242
1243 hidpp->battery.online = true;
1244 if (capacity != hidpp->battery.capacity ||
1245 status != hidpp->battery.status) {
1246 hidpp->battery.capacity = capacity;
1247 hidpp->battery.status = status;
1248 if (hidpp->battery.ps)
1249 power_supply_changed(hidpp->battery.ps);
1250 }
1251
1252 return 0;
1253}
1254
90cdd986
BT		 1255/* -------------------------------------------------------------------------- */
1256/* 0x6010: Touchpad FW items */
1257/* -------------------------------------------------------------------------- */
1258
1259#define HIDPP_PAGE_TOUCHPAD_FW_ITEMS 0x6010
1260
1261#define CMD_TOUCHPAD_FW_ITEMS_SET 0x10
1262
1263struct hidpp_touchpad_fw_items {
1264 uint8_t presence;
1265 uint8_t desired_state;
1266 uint8_t state;
1267 uint8_t persistent;
1268};
1269
1270/**
1271 * send a set state command to the device by reading the current items->state
1272 * field. items is then filled with the current state.
1273 */
1274static int hidpp_touchpad_fw_items_set(struct hidpp_device *hidpp,
1275 u8 feature_index,
1276 struct hidpp_touchpad_fw_items *items)
1277{
1278 struct hidpp_report response;
1279 int ret;
1280 u8 *params = (u8 *)response.fap.params;
1281
1282 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
1283 CMD_TOUCHPAD_FW_ITEMS_SET, &items->state, 1, &response);
1284
1285 if (ret > 0) {
1286 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
1287 __func__, ret);
1288 return -EPROTO;
1289 }
1290 if (ret)
1291 return ret;
1292
1293 items->presence = params[0];
1294 items->desired_state = params[1];
1295 items->state = params[2];
1296 items->persistent = params[3];
1297
1298 return 0;
1299}
1300
2f31c525
BT		 1301/* -------------------------------------------------------------------------- */
1302/* 0x6100: TouchPadRawXY */
1303/* -------------------------------------------------------------------------- */
1304
1305#define HIDPP_PAGE_TOUCHPAD_RAW_XY 0x6100
1306
1307#define CMD_TOUCHPAD_GET_RAW_INFO 0x01
586bdc4e
BT		 1308#define CMD_TOUCHPAD_SET_RAW_REPORT_STATE 0x21
1309
1310#define EVENT_TOUCHPAD_RAW_XY 0x00
2f31c525
BT		 1311
1312#define TOUCHPAD_RAW_XY_ORIGIN_LOWER_LEFT 0x01
1313#define TOUCHPAD_RAW_XY_ORIGIN_UPPER_LEFT 0x03
1314
1315struct hidpp_touchpad_raw_info {
1316 u16 x_size;
1317 u16 y_size;
1318 u8 z_range;
1319 u8 area_range;
1320 u8 timestamp_unit;
1321 u8 maxcontacts;
1322 u8 origin;
1323 u16 res;
1324};
1325
1326struct hidpp_touchpad_raw_xy_finger {
1327 u8 contact_type;
1328 u8 contact_status;
1329 u16 x;
1330 u16 y;
1331 u8 z;
1332 u8 area;
1333 u8 finger_id;
1334};
1335
1336struct hidpp_touchpad_raw_xy {
1337 u16 timestamp;
1338 struct hidpp_touchpad_raw_xy_finger fingers[2];
1339 u8 spurious_flag;
1340 u8 end_of_frame;
1341 u8 finger_count;
1342 u8 button;
1343};
1344
1345static int hidpp_touchpad_get_raw_info(struct hidpp_device *hidpp,
1346 u8 feature_index, struct hidpp_touchpad_raw_info *raw_info)
1347{
1348 struct hidpp_report response;
1349 int ret;
1350 u8 *params = (u8 *)response.fap.params;
1351
1352 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
1353 CMD_TOUCHPAD_GET_RAW_INFO, NULL, 0, &response);
1354
8c9952b2
BT		 1355 if (ret > 0) {
1356 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
1357 __func__, ret);
1358 return -EPROTO;
1359 }
2f31c525 1360 if (ret)
8c9952b2 1361 return ret;
2f31c525
BT		 1362
1363 raw_info->x_size = get_unaligned_be16(&params[0]);
1364 raw_info->y_size = get_unaligned_be16(&params[2]);
1365 raw_info->z_range = params[4];
1366 raw_info->area_range = params[5];
1367 raw_info->maxcontacts = params[7];
1368 raw_info->origin = params[8];
1369 /* res is given in unit per inch */
1370 raw_info->res = get_unaligned_be16(&params[13]) * 2 / 51;
1371
1372 return ret;
1373}
1374
586bdc4e
BT		 1375static int hidpp_touchpad_set_raw_report_state(struct hidpp_device *hidpp_dev,
1376 u8 feature_index, bool send_raw_reports,
1377 bool sensor_enhanced_settings)
1378{
1379 struct hidpp_report response;
1380
1381 /*
1382 * Params:
1383 * bit 0 - enable raw
1384 * bit 1 - 16bit Z, no area
1385 * bit 2 - enhanced sensitivity
1386 * bit 3 - width, height (4 bits each) instead of area
1387 * bit 4 - send raw + gestures (degrades smoothness)
1388 * remaining bits - reserved
1389 */
1390 u8 params = send_raw_reports | (sensor_enhanced_settings << 2);
1391
1392 return hidpp_send_fap_command_sync(hidpp_dev, feature_index,
1393 CMD_TOUCHPAD_SET_RAW_REPORT_STATE, &params, 1, &response);
1394}
1395
1396static void hidpp_touchpad_touch_event(u8 *data,
1397 struct hidpp_touchpad_raw_xy_finger *finger)
1398{
1399 u8 x_m = data[0] << 2;
1400 u8 y_m = data[2] << 2;
1401
1402 finger->x = x_m << 6 | data[1];
1403 finger->y = y_m << 6 | data[3];
1404
1405 finger->contact_type = data[0] >> 6;
1406 finger->contact_status = data[2] >> 6;
1407
1408 finger->z = data[4];
1409 finger->area = data[5];
1410 finger->finger_id = data[6] >> 4;
1411}
1412
1413static void hidpp_touchpad_raw_xy_event(struct hidpp_device *hidpp_dev,
1414 u8 *data, struct hidpp_touchpad_raw_xy *raw_xy)
1415{
1416 memset(raw_xy, 0, sizeof(struct hidpp_touchpad_raw_xy));
1417 raw_xy->end_of_frame = data[8] & 0x01;
1418 raw_xy->spurious_flag = (data[8] >> 1) & 0x01;
1419 raw_xy->finger_count = data[15] & 0x0f;
1420 raw_xy->button = (data[8] >> 2) & 0x01;
1421
1422 if (raw_xy->finger_count) {
1423 hidpp_touchpad_touch_event(&data[2], &raw_xy->fingers[0]);
1424 hidpp_touchpad_touch_event(&data[9], &raw_xy->fingers[1]);
1425 }
1426}
1427
ff21a635
EV		 1428/* -------------------------------------------------------------------------- */
1429/* 0x8123: Force feedback support */
1430/* -------------------------------------------------------------------------- */
1431
1432#define HIDPP_FF_GET_INFO 0x01
1433#define HIDPP_FF_RESET_ALL 0x11
1434#define HIDPP_FF_DOWNLOAD_EFFECT 0x21
1435#define HIDPP_FF_SET_EFFECT_STATE 0x31
1436#define HIDPP_FF_DESTROY_EFFECT 0x41
1437#define HIDPP_FF_GET_APERTURE 0x51
1438#define HIDPP_FF_SET_APERTURE 0x61
1439#define HIDPP_FF_GET_GLOBAL_GAINS 0x71
1440#define HIDPP_FF_SET_GLOBAL_GAINS 0x81
1441
1442#define HIDPP_FF_EFFECT_STATE_GET 0x00
1443#define HIDPP_FF_EFFECT_STATE_STOP 0x01
1444#define HIDPP_FF_EFFECT_STATE_PLAY 0x02
1445#define HIDPP_FF_EFFECT_STATE_PAUSE 0x03
1446
1447#define HIDPP_FF_EFFECT_CONSTANT 0x00
1448#define HIDPP_FF_EFFECT_PERIODIC_SINE 0x01
1449#define HIDPP_FF_EFFECT_PERIODIC_SQUARE 0x02
1450#define HIDPP_FF_EFFECT_PERIODIC_TRIANGLE 0x03
1451#define HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHUP 0x04
1452#define HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHDOWN 0x05
1453#define HIDPP_FF_EFFECT_SPRING 0x06
1454#define HIDPP_FF_EFFECT_DAMPER 0x07
1455#define HIDPP_FF_EFFECT_FRICTION 0x08
1456#define HIDPP_FF_EFFECT_INERTIA 0x09
1457#define HIDPP_FF_EFFECT_RAMP 0x0A
1458
1459#define HIDPP_FF_EFFECT_AUTOSTART 0x80
1460
1461#define HIDPP_FF_EFFECTID_NONE -1
1462#define HIDPP_FF_EFFECTID_AUTOCENTER -2
1463
1464#define HIDPP_FF_MAX_PARAMS 20
1465#define HIDPP_FF_RESERVED_SLOTS 1
1466
1467struct hidpp_ff_private_data {
1468 struct hidpp_device *hidpp;
1469 u8 feature_index;
1470 u8 version;
1471 u16 gain;
1472 s16 range;
1473 u8 slot_autocenter;
1474 u8 num_effects;
1475 int *effect_ids;
1476 struct workqueue_struct *wq;
1477 atomic_t workqueue_size;
1478};
1479
1480struct hidpp_ff_work_data {
1481 struct work_struct work;
1482 struct hidpp_ff_private_data *data;
1483 int effect_id;
1484 u8 command;
1485 u8 params[HIDPP_FF_MAX_PARAMS];
1486 u8 size;
1487};
1488
fef33601 1489static const signed short hidpp_ff_effects[] = {
ff21a635
EV		 1490 FF_CONSTANT,
1491 FF_PERIODIC,
1492 FF_SINE,
1493 FF_SQUARE,
1494 FF_SAW_UP,
1495 FF_SAW_DOWN,
1496 FF_TRIANGLE,
1497 FF_SPRING,
1498 FF_DAMPER,
1499 FF_AUTOCENTER,
1500 FF_GAIN,
1501 -1
1502};
1503
fef33601 1504static const signed short hidpp_ff_effects_v2[] = {
ff21a635
EV		 1505 FF_RAMP,
1506 FF_FRICTION,
1507 FF_INERTIA,
1508 -1
1509};
1510
1511static const u8 HIDPP_FF_CONDITION_CMDS[] = {
1512 HIDPP_FF_EFFECT_SPRING,
1513 HIDPP_FF_EFFECT_FRICTION,
1514 HIDPP_FF_EFFECT_DAMPER,
1515 HIDPP_FF_EFFECT_INERTIA
1516};
1517
1518static const char *HIDPP_FF_CONDITION_NAMES[] = {
1519 "spring",
1520 "friction",
1521 "damper",
1522 "inertia"
1523};
1524
1525
1526static u8 hidpp_ff_find_effect(struct hidpp_ff_private_data *data, int effect_id)
1527{
1528 int i;
1529
1530 for (i = 0; i < data->num_effects; i++)
1531 if (data->effect_ids[i] == effect_id)
1532 return i+1;
1533
1534 return 0;
1535}
1536
1537static void hidpp_ff_work_handler(struct work_struct *w)
1538{
1539 struct hidpp_ff_work_data *wd = container_of(w, struct hidpp_ff_work_data, work);
1540 struct hidpp_ff_private_data *data = wd->data;
1541 struct hidpp_report response;
1542 u8 slot;
1543 int ret;
1544
1545 /* add slot number if needed */
1546 switch (wd->effect_id) {
1547 case HIDPP_FF_EFFECTID_AUTOCENTER:
1548 wd->params[0] = data->slot_autocenter;
1549 break;
1550 case HIDPP_FF_EFFECTID_NONE:
1551 /* leave slot as zero */
1552 break;
1553 default:
1554 /* find current slot for effect */
1555 wd->params[0] = hidpp_ff_find_effect(data, wd->effect_id);
1556 break;
1557 }
1558
1559 /* send command and wait for reply */
1560 ret = hidpp_send_fap_command_sync(data->hidpp, data->feature_index,
1561 wd->command, wd->params, wd->size, &response);
1562
1563 if (ret) {
1564 hid_err(data->hidpp->hid_dev, "Failed to send command to device!\n");
1565 goto out;
1566 }
1567
1568 /* parse return data */
1569 switch (wd->command) {
1570 case HIDPP_FF_DOWNLOAD_EFFECT:
1571 slot = response.fap.params[0];
1572 if (slot > 0 && slot <= data->num_effects) {
1573 if (wd->effect_id >= 0)
1574 /* regular effect uploaded */
1575 data->effect_ids[slot-1] = wd->effect_id;
1576 else if (wd->effect_id >= HIDPP_FF_EFFECTID_AUTOCENTER)
1577 /* autocenter spring uploaded */
1578 data->slot_autocenter = slot;
1579 }
1580 break;
1581 case HIDPP_FF_DESTROY_EFFECT:
1582 if (wd->effect_id >= 0)
1583 /* regular effect destroyed */
1584 data->effect_ids[wd->params[0]-1] = -1;
1585 else if (wd->effect_id >= HIDPP_FF_EFFECTID_AUTOCENTER)
1586 /* autocenter spring destoyed */
1587 data->slot_autocenter = 0;
1588 break;
1589 case HIDPP_FF_SET_GLOBAL_GAINS:
1590 data->gain = (wd->params[0] << 8) + wd->params[1];
1591 break;
1592 case HIDPP_FF_SET_APERTURE:
1593 data->range = (wd->params[0] << 8) + wd->params[1];
1594 break;
1595 default:
1596 /* no action needed */
1597 break;
1598 }
1599
1600out:
1601 atomic_dec(&data->workqueue_size);
1602 kfree(wd);
1603}
1604
1605static int hidpp_ff_queue_work(struct hidpp_ff_private_data *data, int effect_id, u8 command, u8 *params, u8 size)
1606{
1607 struct hidpp_ff_work_data *wd = kzalloc(sizeof(*wd), GFP_KERNEL);
1608 int s;
1609
1610 if (!wd)
1611 return -ENOMEM;
1612
1613 INIT_WORK(&wd->work, hidpp_ff_work_handler);
1614
1615 wd->data = data;
1616 wd->effect_id = effect_id;
1617 wd->command = command;
1618 wd->size = size;
1619 memcpy(wd->params, params, size);
1620
1621 atomic_inc(&data->workqueue_size);
1622 queue_work(data->wq, &wd->work);
1623
1624 /* warn about excessive queue size */
1625 s = atomic_read(&data->workqueue_size);
1626 if (s >= 20 && s % 20 == 0)
1627 hid_warn(data->hidpp->hid_dev, "Force feedback command queue contains %d commands, causing substantial delays!", s);
1628
1629 return 0;
1630}
1631
1632static int hidpp_ff_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
1633{
1634 struct hidpp_ff_private_data *data = dev->ff->private;
1635 u8 params[20];
1636 u8 size;
1637 int force;
1638
1639 /* set common parameters */
1640 params[2] = effect->replay.length >> 8;
1641 params[3] = effect->replay.length & 255;
1642 params[4] = effect->replay.delay >> 8;
1643 params[5] = effect->replay.delay & 255;
1644
1645 switch (effect->type) {
1646 case FF_CONSTANT:
1647 force = (effect->u.constant.level * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
1648 params[1] = HIDPP_FF_EFFECT_CONSTANT;
1649 params[6] = force >> 8;
1650 params[7] = force & 255;
1651 params[8] = effect->u.constant.envelope.attack_level >> 7;
1652 params[9] = effect->u.constant.envelope.attack_length >> 8;
1653 params[10] = effect->u.constant.envelope.attack_length & 255;
1654 params[11] = effect->u.constant.envelope.fade_level >> 7;
1655 params[12] = effect->u.constant.envelope.fade_length >> 8;
1656 params[13] = effect->u.constant.envelope.fade_length & 255;
1657 size = 14;
1658 dbg_hid("Uploading constant force level=%d in dir %d = %d\n",
1659 effect->u.constant.level,
1660 effect->direction, force);
1661 dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n",
1662 effect->u.constant.envelope.attack_level,
1663 effect->u.constant.envelope.attack_length,
1664 effect->u.constant.envelope.fade_level,
1665 effect->u.constant.envelope.fade_length);
1666 break;
1667 case FF_PERIODIC:
1668 {
1669 switch (effect->u.periodic.waveform) {
1670 case FF_SINE:
1671 params[1] = HIDPP_FF_EFFECT_PERIODIC_SINE;
1672 break;
1673 case FF_SQUARE:
1674 params[1] = HIDPP_FF_EFFECT_PERIODIC_SQUARE;
1675 break;
1676 case FF_SAW_UP:
1677 params[1] = HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHUP;
1678 break;
1679 case FF_SAW_DOWN:
1680 params[1] = HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHDOWN;
1681 break;
1682 case FF_TRIANGLE:
1683 params[1] = HIDPP_FF_EFFECT_PERIODIC_TRIANGLE;
1684 break;
1685 default:
1686 hid_err(data->hidpp->hid_dev, "Unexpected periodic waveform type %i!\n", effect->u.periodic.waveform);
1687 return -EINVAL;
1688 }
1689 force = (effect->u.periodic.magnitude * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
1690 params[6] = effect->u.periodic.magnitude >> 8;
1691 params[7] = effect->u.periodic.magnitude & 255;
1692 params[8] = effect->u.periodic.offset >> 8;
1693 params[9] = effect->u.periodic.offset & 255;
1694 params[10] = effect->u.periodic.period >> 8;
1695 params[11] = effect->u.periodic.period & 255;
1696 params[12] = effect->u.periodic.phase >> 8;
1697 params[13] = effect->u.periodic.phase & 255;
1698 params[14] = effect->u.periodic.envelope.attack_level >> 7;
1699 params[15] = effect->u.periodic.envelope.attack_length >> 8;
1700 params[16] = effect->u.periodic.envelope.attack_length & 255;
1701 params[17] = effect->u.periodic.envelope.fade_level >> 7;
1702 params[18] = effect->u.periodic.envelope.fade_length >> 8;
1703 params[19] = effect->u.periodic.envelope.fade_length & 255;
1704 size = 20;
1705 dbg_hid("Uploading periodic force mag=%d/dir=%d, offset=%d, period=%d ms, phase=%d\n",
1706 effect->u.periodic.magnitude, effect->direction,
1707 effect->u.periodic.offset,
1708 effect->u.periodic.period,
1709 effect->u.periodic.phase);
1710 dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n",
1711 effect->u.periodic.envelope.attack_level,
1712 effect->u.periodic.envelope.attack_length,
1713 effect->u.periodic.envelope.fade_level,
1714 effect->u.periodic.envelope.fade_length);
1715 break;
1716 }
1717 case FF_RAMP:
1718 params[1] = HIDPP_FF_EFFECT_RAMP;
1719 force = (effect->u.ramp.start_level * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
1720 params[6] = force >> 8;
1721 params[7] = force & 255;
1722 force = (effect->u.ramp.end_level * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
1723 params[8] = force >> 8;
1724 params[9] = force & 255;
1725 params[10] = effect->u.ramp.envelope.attack_level >> 7;
1726 params[11] = effect->u.ramp.envelope.attack_length >> 8;
1727 params[12] = effect->u.ramp.envelope.attack_length & 255;
1728 params[13] = effect->u.ramp.envelope.fade_level >> 7;
1729 params[14] = effect->u.ramp.envelope.fade_length >> 8;
1730 params[15] = effect->u.ramp.envelope.fade_length & 255;
1731 size = 16;
1732 dbg_hid("Uploading ramp force level=%d -> %d in dir %d = %d\n",
1733 effect->u.ramp.start_level,
1734 effect->u.ramp.end_level,
1735 effect->direction, force);
1736 dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n",
1737 effect->u.ramp.envelope.attack_level,
1738 effect->u.ramp.envelope.attack_length,
1739 effect->u.ramp.envelope.fade_level,
1740 effect->u.ramp.envelope.fade_length);
1741 break;
1742 case FF_FRICTION:
1743 case FF_INERTIA:
1744 case FF_SPRING:
1745 case FF_DAMPER:
1746 params[1] = HIDPP_FF_CONDITION_CMDS[effect->type - FF_SPRING];
1747 params[6] = effect->u.condition[0].left_saturation >> 9;
1748 params[7] = (effect->u.condition[0].left_saturation >> 1) & 255;
1749 params[8] = effect->u.condition[0].left_coeff >> 8;
1750 params[9] = effect->u.condition[0].left_coeff & 255;
1751 params[10] = effect->u.condition[0].deadband >> 9;
1752 params[11] = (effect->u.condition[0].deadband >> 1) & 255;
1753 params[12] = effect->u.condition[0].center >> 8;
1754 params[13] = effect->u.condition[0].center & 255;
1755 params[14] = effect->u.condition[0].right_coeff >> 8;
1756 params[15] = effect->u.condition[0].right_coeff & 255;
1757 params[16] = effect->u.condition[0].right_saturation >> 9;
1758 params[17] = (effect->u.condition[0].right_saturation >> 1) & 255;
1759 size = 18;
1760 dbg_hid("Uploading %s force left coeff=%d, left sat=%d, right coeff=%d, right sat=%d\n",
1761 HIDPP_FF_CONDITION_NAMES[effect->type - FF_SPRING],
1762 effect->u.condition[0].left_coeff,
1763 effect->u.condition[0].left_saturation,
1764 effect->u.condition[0].right_coeff,
1765 effect->u.condition[0].right_saturation);
1766 dbg_hid(" deadband=%d, center=%d\n",
1767 effect->u.condition[0].deadband,
1768 effect->u.condition[0].center);
1769 break;
1770 default:
1771 hid_err(data->hidpp->hid_dev, "Unexpected force type %i!\n", effect->type);
1772 return -EINVAL;
1773 }
1774
1775 return hidpp_ff_queue_work(data, effect->id, HIDPP_FF_DOWNLOAD_EFFECT, params, size);
1776}
1777
1778static int hidpp_ff_playback(struct input_dev *dev, int effect_id, int value)
1779{
1780 struct hidpp_ff_private_data *data = dev->ff->private;
1781 u8 params[2];
1782
1783 params[1] = value ? HIDPP_FF_EFFECT_STATE_PLAY : HIDPP_FF_EFFECT_STATE_STOP;
1784
1785 dbg_hid("St%sing playback of effect %d.\n", value?"art":"opp", effect_id);
1786
1787 return hidpp_ff_queue_work(data, effect_id, HIDPP_FF_SET_EFFECT_STATE, params, ARRAY_SIZE(params));
1788}
1789
1790static int hidpp_ff_erase_effect(struct input_dev *dev, int effect_id)
1791{
1792 struct hidpp_ff_private_data *data = dev->ff->private;
1793 u8 slot = 0;
1794
1795 dbg_hid("Erasing effect %d.\n", effect_id);
1796
1797 return hidpp_ff_queue_work(data, effect_id, HIDPP_FF_DESTROY_EFFECT, &slot, 1);
1798}
1799
1800static void hidpp_ff_set_autocenter(struct input_dev *dev, u16 magnitude)
1801{
1802 struct hidpp_ff_private_data *data = dev->ff->private;
1803 u8 params[18];
1804
1805 dbg_hid("Setting autocenter to %d.\n", magnitude);
1806
1807 /* start a standard spring effect */
1808 params[1] = HIDPP_FF_EFFECT_SPRING | HIDPP_FF_EFFECT_AUTOSTART;
1809 /* zero delay and duration */
1810 params[2] = params[3] = params[4] = params[5] = 0;
1811 /* set coeff to 25% of saturation */
1812 params[8] = params[14] = magnitude >> 11;
1813 params[9] = params[15] = (magnitude >> 3) & 255;
1814 params[6] = params[16] = magnitude >> 9;
1815 params[7] = params[17] = (magnitude >> 1) & 255;
1816 /* zero deadband and center */
1817 params[10] = params[11] = params[12] = params[13] = 0;
1818
1819 hidpp_ff_queue_work(data, HIDPP_FF_EFFECTID_AUTOCENTER, HIDPP_FF_DOWNLOAD_EFFECT, params, ARRAY_SIZE(params));
1820}
1821
1822static void hidpp_ff_set_gain(struct input_dev *dev, u16 gain)
1823{
1824 struct hidpp_ff_private_data *data = dev->ff->private;
1825 u8 params[4];
1826
1827 dbg_hid("Setting gain to %d.\n", gain);
1828
1829 params[0] = gain >> 8;
1830 params[1] = gain & 255;
1831 params[2] = 0; /* no boost */
1832 params[3] = 0;
1833
1834 hidpp_ff_queue_work(data, HIDPP_FF_EFFECTID_NONE, HIDPP_FF_SET_GLOBAL_GAINS, params, ARRAY_SIZE(params));
1835}
1836
1837static ssize_t hidpp_ff_range_show(struct device *dev, struct device_attribute *attr, char *buf)
1838{
1839 struct hid_device *hid = to_hid_device(dev);
1840 struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
1841 struct input_dev *idev = hidinput->input;
1842 struct hidpp_ff_private_data *data = idev->ff->private;
1843
1844 return scnprintf(buf, PAGE_SIZE, "%u\n", data->range);
1845}
1846
1847static ssize_t hidpp_ff_range_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1848{
1849 struct hid_device *hid = to_hid_device(dev);
1850 struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
1851 struct input_dev *idev = hidinput->input;
1852 struct hidpp_ff_private_data *data = idev->ff->private;
1853 u8 params[2];
1854 int range = simple_strtoul(buf, NULL, 10);
1855
1856 range = clamp(range, 180, 900);
1857
1858 params[0] = range >> 8;
1859 params[1] = range & 0x00FF;
1860
1861 hidpp_ff_queue_work(data, -1, HIDPP_FF_SET_APERTURE, params, ARRAY_SIZE(params));
1862
1863 return count;
1864}
1865
1866static DEVICE_ATTR(range, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, hidpp_ff_range_show, hidpp_ff_range_store);
1867
1868static void hidpp_ff_destroy(struct ff_device *ff)
1869{
1870 struct hidpp_ff_private_data *data = ff->private;
1871
1872 kfree(data->effect_ids);
1873}
1874
af2e628d 1875static int hidpp_ff_init(struct hidpp_device *hidpp, u8 feature_index)
ff21a635
EV		 1876{
1877 struct hid_device *hid = hidpp->hid_dev;
1878 struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
1879 struct input_dev *dev = hidinput->input;
1880 const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor);
1881 const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice);
1882 struct ff_device *ff;
1883 struct hidpp_report response;
1884 struct hidpp_ff_private_data *data;
1885 int error, j, num_slots;
1886 u8 version;
1887
1888 if (!dev) {
1889 hid_err(hid, "Struct input_dev not set!\n");
1890 return -EINVAL;
1891 }
1892
1893 /* Get firmware release */
1894 version = bcdDevice & 255;
1895
1896 /* Set supported force feedback capabilities */
fef33601
PH		 1897 for (j = 0; hidpp_ff_effects[j] >= 0; j++)
1898 set_bit(hidpp_ff_effects[j], dev->ffbit);
ff21a635 1899 if (version > 1)
fef33601
PH		 1900 for (j = 0; hidpp_ff_effects_v2[j] >= 0; j++)
1901 set_bit(hidpp_ff_effects_v2[j], dev->ffbit);
ff21a635
EV		 1902
1903 /* Read number of slots available in device */
1904 error = hidpp_send_fap_command_sync(hidpp, feature_index,
1905 HIDPP_FF_GET_INFO, NULL, 0, &response);
1906 if (error) {
1907 if (error < 0)
1908 return error;
1909 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
1910 __func__, error);
1911 return -EPROTO;
1912 }
1913
1914 num_slots = response.fap.params[0] - HIDPP_FF_RESERVED_SLOTS;
1915
1916 error = input_ff_create(dev, num_slots);
1917
1918 if (error) {
1919 hid_err(dev, "Failed to create FF device!\n");
1920 return error;
1921 }
1922
1923 data = kzalloc(sizeof(*data), GFP_KERNEL);
1924 if (!data)
1925 return -ENOMEM;
1926 data->effect_ids = kcalloc(num_slots, sizeof(int), GFP_KERNEL);
1927 if (!data->effect_ids) {
1928 kfree(data);
1929 return -ENOMEM;
1930 }
1931 data->hidpp = hidpp;
1932 data->feature_index = feature_index;
1933 data->version = version;
1934 data->slot_autocenter = 0;
1935 data->num_effects = num_slots;
1936 for (j = 0; j < num_slots; j++)
1937 data->effect_ids[j] = -1;
1938
1939 ff = dev->ff;
1940 ff->private = data;
1941
1942 ff->upload = hidpp_ff_upload_effect;
1943 ff->erase = hidpp_ff_erase_effect;
1944 ff->playback = hidpp_ff_playback;
1945 ff->set_gain = hidpp_ff_set_gain;
1946 ff->set_autocenter = hidpp_ff_set_autocenter;
1947 ff->destroy = hidpp_ff_destroy;
1948
1949
1950 /* reset all forces */
1951 error = hidpp_send_fap_command_sync(hidpp, feature_index,
1952 HIDPP_FF_RESET_ALL, NULL, 0, &response);
1953
1954 /* Read current Range */
1955 error = hidpp_send_fap_command_sync(hidpp, feature_index,
1956 HIDPP_FF_GET_APERTURE, NULL, 0, &response);
1957 if (error)
1958 hid_warn(hidpp->hid_dev, "Failed to read range from device!\n");
1959 data->range = error ? 900 : get_unaligned_be16(&response.fap.params[0]);
1960
1961 /* Create sysfs interface */
1962 error = device_create_file(&(hidpp->hid_dev->dev), &dev_attr_range);
1963 if (error)
1964 hid_warn(hidpp->hid_dev, "Unable to create sysfs interface for \"range\", errno %d!\n", error);
1965
1966 /* Read the current gain values */
1967 error = hidpp_send_fap_command_sync(hidpp, feature_index,
1968 HIDPP_FF_GET_GLOBAL_GAINS, NULL, 0, &response);
1969 if (error)
1970 hid_warn(hidpp->hid_dev, "Failed to read gain values from device!\n");
1971 data->gain = error ? 0xffff : get_unaligned_be16(&response.fap.params[0]);
1972 /* ignore boost value at response.fap.params[2] */
1973
1974 /* init the hardware command queue */
1975 data->wq = create_singlethread_workqueue("hidpp-ff-sendqueue");
1976 atomic_set(&data->workqueue_size, 0);
1977
1978 /* initialize with zero autocenter to get wheel in usable state */
1979 hidpp_ff_set_autocenter(dev, 0);
1980
df47b246
CIK		 1981 hid_info(hid, "Force feedback support loaded (firmware release %d).\n",
1982 version);
ff21a635
EV		 1983
1984 return 0;
1985}
1986
af2e628d 1987static int hidpp_ff_deinit(struct hid_device *hid)
ff21a635
EV		 1988{
1989 struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
1990 struct input_dev *dev = hidinput->input;
1991 struct hidpp_ff_private_data *data;
1992
1993 if (!dev) {
1994 hid_err(hid, "Struct input_dev not found!\n");
1995 return -EINVAL;
1996 }
1997
1998 hid_info(hid, "Unloading HID++ force feedback.\n");
1999 data = dev->ff->private;
2000 if (!data) {
2001 hid_err(hid, "Private data not found!\n");
2002 return -EINVAL;
2003 }
2004
2005 destroy_workqueue(data->wq);
2006 device_remove_file(&hid->dev, &dev_attr_range);
2007
2008 return 0;
2009}
2010
2011
2f31c525
BT		 2012/* ************************************************************************** */
2013/* */
2014/* Device Support */
2015/* */
2016/* ************************************************************************** */
2017
2018/* -------------------------------------------------------------------------- */
2019/* Touchpad HID++ devices */
2020/* -------------------------------------------------------------------------- */
2021
57ac86cf
BT		 2022#define WTP_MANUAL_RESOLUTION 39
2023
2f31c525
BT		 2024struct wtp_data {
2025 struct input_dev *input;
2026 u16 x_size, y_size;
2027 u8 finger_count;
2028 u8 mt_feature_index;
2029 u8 button_feature_index;
2030 u8 maxcontacts;
2031 bool flip_y;
2032 unsigned int resolution;
2033};
2034
2035static int wtp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
2036 struct hid_field *field, struct hid_usage *usage,
2037 unsigned long **bit, int *max)
2038{
2039 return -1;
2040}
2041
c39e3d5f
BT		 2042static void wtp_populate_input(struct hidpp_device *hidpp,
2043 struct input_dev *input_dev, bool origin_is_hid_core)
2f31c525 2044{
2f31c525 2045 struct wtp_data *wd = hidpp->private_data;
2f31c525
BT		 2046
2047 __set_bit(EV_ABS, input_dev->evbit);
2048 __set_bit(EV_KEY, input_dev->evbit);
2049 __clear_bit(EV_REL, input_dev->evbit);
2050 __clear_bit(EV_LED, input_dev->evbit);
2051
2052 input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0, wd->x_size, 0, 0);
2053 input_abs_set_res(input_dev, ABS_MT_POSITION_X, wd->resolution);
2054 input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0, wd->y_size, 0, 0);
2055 input_abs_set_res(input_dev, ABS_MT_POSITION_Y, wd->resolution);
2056
2057 /* Max pressure is not given by the devices, pick one */
2058 input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 50, 0, 0);
2059
2060 input_set_capability(input_dev, EV_KEY, BTN_LEFT);
2061
57ac86cf
BT		 2062 if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS)
2063 input_set_capability(input_dev, EV_KEY, BTN_RIGHT);
2064 else
2065 __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit);
2f31c525
BT		 2066
2067 input_mt_init_slots(input_dev, wd->maxcontacts, INPUT_MT_POINTER |
2068 INPUT_MT_DROP_UNUSED);
2069
2070 wd->input = input_dev;
2071}
2072
2073static void wtp_touch_event(struct wtp_data *wd,
2074 struct hidpp_touchpad_raw_xy_finger *touch_report)
2075{
2076 int slot;
2077
2078 if (!touch_report->finger_id || touch_report->contact_type)
2079 /* no actual data */
2080 return;
2081
2082 slot = input_mt_get_slot_by_key(wd->input, touch_report->finger_id);
2083
2084 input_mt_slot(wd->input, slot);
2085 input_mt_report_slot_state(wd->input, MT_TOOL_FINGER,
2086 touch_report->contact_status);
2087 if (touch_report->contact_status) {
2088 input_event(wd->input, EV_ABS, ABS_MT_POSITION_X,
2089 touch_report->x);
2090 input_event(wd->input, EV_ABS, ABS_MT_POSITION_Y,
2091 wd->flip_y ? wd->y_size - touch_report->y :
2092 touch_report->y);
2093 input_event(wd->input, EV_ABS, ABS_MT_PRESSURE,
2094 touch_report->area);
2095 }
2096}
2097
2098static void wtp_send_raw_xy_event(struct hidpp_device *hidpp,
2099 struct hidpp_touchpad_raw_xy *raw)
2100{
2101 struct wtp_data *wd = hidpp->private_data;
2102 int i;
2103
2104 for (i = 0; i < 2; i++)
2105 wtp_touch_event(wd, &(raw->fingers[i]));
2106
57ac86cf
BT		 2107 if (raw->end_of_frame &&
2108 !(hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS))
2f31c525
BT		 2109 input_event(wd->input, EV_KEY, BTN_LEFT, raw->button);
2110
2111 if (raw->end_of_frame || raw->finger_count <= 2) {
2112 input_mt_sync_frame(wd->input);
2113 input_sync(wd->input);
2114 }
2115}
2116
2117static int wtp_mouse_raw_xy_event(struct hidpp_device *hidpp, u8 *data)
2118{
2119 struct wtp_data *wd = hidpp->private_data;
2120 u8 c1_area = ((data[7] & 0xf) * (data[7] & 0xf) +
2121 (data[7] >> 4) * (data[7] >> 4)) / 2;
2122 u8 c2_area = ((data[13] & 0xf) * (data[13] & 0xf) +
2123 (data[13] >> 4) * (data[13] >> 4)) / 2;
2124 struct hidpp_touchpad_raw_xy raw = {
2125 .timestamp = data[1],
2126 .fingers = {
2127 {
2128 .contact_type = 0,
2129 .contact_status = !!data[7],
2130 .x = get_unaligned_le16(&data[3]),
2131 .y = get_unaligned_le16(&data[5]),
2132 .z = c1_area,
2133 .area = c1_area,
2134 .finger_id = data[2],
2135 }, {
2136 .contact_type = 0,
2137 .contact_status = !!data[13],
2138 .x = get_unaligned_le16(&data[9]),
2139 .y = get_unaligned_le16(&data[11]),
2140 .z = c2_area,
2141 .area = c2_area,
2142 .finger_id = data[8],
2143 }
2144 },
2145 .finger_count = wd->maxcontacts,
2146 .spurious_flag = 0,
2147 .end_of_frame = (data[0] >> 7) == 0,
2148 .button = data[0] & 0x01,
2149 };
2150
2151 wtp_send_raw_xy_event(hidpp, &raw);
2152
2153 return 1;
2154}
2155
2156static int wtp_raw_event(struct hid_device *hdev, u8 *data, int size)
2157{
2158 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2159 struct wtp_data *wd = hidpp->private_data;
586bdc4e
BT		 2160 struct hidpp_report *report = (struct hidpp_report *)data;
2161 struct hidpp_touchpad_raw_xy raw;
2f31c525 2162
586bdc4e 2163 if (!wd || !wd->input)
2f31c525
BT		 2164 return 1;
2165
586bdc4e
BT		 2166 switch (data[0]) {
2167 case 0x02:
0b3f6569
PW		 2168 if (size < 2) {
2169 hid_err(hdev, "Received HID report of bad size (%d)",
2170 size);
2171 return 1;
2172 }
57ac86cf
BT		 2173 if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS) {
2174 input_event(wd->input, EV_KEY, BTN_LEFT,
2175 !!(data[1] & 0x01));
2176 input_event(wd->input, EV_KEY, BTN_RIGHT,
2177 !!(data[1] & 0x02));
2178 input_sync(wd->input);
8abd8205 2179 return 0;
57ac86cf
BT		 2180 } else {
2181 if (size < 21)
2182 return 1;
2183 return wtp_mouse_raw_xy_event(hidpp, &data[7]);
2184 }
586bdc4e 2185 case REPORT_ID_HIDPP_LONG:
0b3f6569 2186 /* size is already checked in hidpp_raw_event. */
586bdc4e
BT		 2187 if ((report->fap.feature_index != wd->mt_feature_index) ||
2188 (report->fap.funcindex_clientid != EVENT_TOUCHPAD_RAW_XY))
2189 return 1;
2190 hidpp_touchpad_raw_xy_event(hidpp, data + 4, &raw);
2191
2192 wtp_send_raw_xy_event(hidpp, &raw);
2193 return 0;
2194 }
2195
2196 return 0;
2f31c525
BT		 2197}
2198
2199static int wtp_get_config(struct hidpp_device *hidpp)
2200{
2201 struct wtp_data *wd = hidpp->private_data;
2202 struct hidpp_touchpad_raw_info raw_info = {0};
2203 u8 feature_type;
2204 int ret;
2205
2206 ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_TOUCHPAD_RAW_XY,
2207 &wd->mt_feature_index, &feature_type);
2208 if (ret)
2209 /* means that the device is not powered up */
2210 return ret;
2211
2212 ret = hidpp_touchpad_get_raw_info(hidpp, wd->mt_feature_index,
2213 &raw_info);
2214 if (ret)
2215 return ret;
2216
2217 wd->x_size = raw_info.x_size;
2218 wd->y_size = raw_info.y_size;
2219 wd->maxcontacts = raw_info.maxcontacts;
2220 wd->flip_y = raw_info.origin == TOUCHPAD_RAW_XY_ORIGIN_LOWER_LEFT;
2221 wd->resolution = raw_info.res;
57ac86cf
BT		 2222 if (!wd->resolution)
2223 wd->resolution = WTP_MANUAL_RESOLUTION;
2f31c525
BT		 2224
2225 return 0;
2226}
2227
2228static int wtp_allocate(struct hid_device *hdev, const struct hid_device_id *id)
2229{
2230 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2231 struct wtp_data *wd;
2232
2233 wd = devm_kzalloc(&hdev->dev, sizeof(struct wtp_data),
2234 GFP_KERNEL);
2235 if (!wd)
2236 return -ENOMEM;
2237
2238 hidpp->private_data = wd;
2239
2240 return 0;
2241};
2242
bf159447 2243static int wtp_connect(struct hid_device *hdev, bool connected)
586bdc4e
BT		 2244{
2245 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2246 struct wtp_data *wd = hidpp->private_data;
2247 int ret;
2248
586bdc4e
BT		 2249 if (!wd->x_size) {
2250 ret = wtp_get_config(hidpp);
2251 if (ret) {
2252 hid_err(hdev, "Can not get wtp config: %d\n", ret);
bf159447 2253 return ret;
586bdc4e
BT		 2254 }
2255 }
2256
bf159447 2257 return hidpp_touchpad_set_raw_report_state(hidpp, wd->mt_feature_index,
586bdc4e
BT		 2258 true, true);
2259}
2260
8a09b4fa
GB		 2261/* ------------------------------------------------------------------------- */
2262/* Logitech M560 devices */
2263/* ------------------------------------------------------------------------- */
2264
2265/*
2266 * Logitech M560 protocol overview
2267 *
2268 * The Logitech M560 mouse, is designed for windows 8. When the middle and/or
2269 * the sides buttons are pressed, it sends some keyboard keys events
2270 * instead of buttons ones.
2271 * To complicate things further, the middle button keys sequence
2272 * is different from the odd press and the even press.
2273 *
2274 * forward button -> Super_R
2275 * backward button -> Super_L+'d' (press only)
2276 * middle button -> 1st time: Alt_L+SuperL+XF86TouchpadOff (press only)
2277 * 2nd time: left-click (press only)
2278 * NB: press-only means that when the button is pressed, the
2279 * KeyPress/ButtonPress and KeyRelease/ButtonRelease events are generated
2280 * together sequentially; instead when the button is released, no event is
2281 * generated !
2282 *
2283 * With the command
2284 * 10<xx>0a 3500af03 (where <xx> is the mouse id),
2285 * the mouse reacts differently:
2286 * - it never sends a keyboard key event
2287 * - for the three mouse button it sends:
2288 * middle button press 11<xx>0a 3500af00...
2289 * side 1 button (forward) press 11<xx>0a 3500b000...
2290 * side 2 button (backward) press 11<xx>0a 3500ae00...
2291 * middle/side1/side2 button release 11<xx>0a 35000000...
2292 */
2293
2294static const u8 m560_config_parameter[] = {0x00, 0xaf, 0x03};
2295
2296struct m560_private_data {
2297 struct input_dev *input;
2298};
2299
2300/* how buttons are mapped in the report */
2301#define M560_MOUSE_BTN_LEFT 0x01
2302#define M560_MOUSE_BTN_RIGHT 0x02
2303#define M560_MOUSE_BTN_WHEEL_LEFT 0x08
2304#define M560_MOUSE_BTN_WHEEL_RIGHT 0x10
2305
2306#define M560_SUB_ID 0x0a
2307#define M560_BUTTON_MODE_REGISTER 0x35
2308
2309static int m560_send_config_command(struct hid_device *hdev, bool connected)
2310{
2311 struct hidpp_report response;
2312 struct hidpp_device *hidpp_dev;
2313
2314 hidpp_dev = hid_get_drvdata(hdev);
2315
8a09b4fa
GB		 2316 return hidpp_send_rap_command_sync(
2317 hidpp_dev,
2318 REPORT_ID_HIDPP_SHORT,
2319 M560_SUB_ID,
2320 M560_BUTTON_MODE_REGISTER,
2321 (u8 *)m560_config_parameter,
2322 sizeof(m560_config_parameter),
2323 &response
2324 );
2325}
2326
2327static int m560_allocate(struct hid_device *hdev)
2328{
2329 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2330 struct m560_private_data *d;
2331
2332 d = devm_kzalloc(&hdev->dev, sizeof(struct m560_private_data),
2333 GFP_KERNEL);
2334 if (!d)
2335 return -ENOMEM;
2336
2337 hidpp->private_data = d;
2338
2339 return 0;
2340};
2341
2342static int m560_raw_event(struct hid_device *hdev, u8 *data, int size)
2343{
2344 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2345 struct m560_private_data *mydata = hidpp->private_data;
2346
2347 /* sanity check */
2348 if (!mydata || !mydata->input) {
2349 hid_err(hdev, "error in parameter\n");
2350 return -EINVAL;
2351 }
2352
2353 if (size < 7) {
2354 hid_err(hdev, "error in report\n");
2355 return 0;
2356 }
2357
2358 if (data[0] == REPORT_ID_HIDPP_LONG &&
2359 data[2] == M560_SUB_ID && data[6] == 0x00) {
2360 /*
2361 * m560 mouse report for middle, forward and backward button
2362 *
2363 * data[0] = 0x11
2364 * data[1] = device-id
2365 * data[2] = 0x0a
2366 * data[5] = 0xaf -> middle
2367 * 0xb0 -> forward
2368 * 0xae -> backward
2369 * 0x00 -> release all
2370 * data[6] = 0x00
2371 */
2372
2373 switch (data[5]) {
2374 case 0xaf:
2375 input_report_key(mydata->input, BTN_MIDDLE, 1);
2376 break;
2377 case 0xb0:
2378 input_report_key(mydata->input, BTN_FORWARD, 1);
2379 break;
2380 case 0xae:
2381 input_report_key(mydata->input, BTN_BACK, 1);
2382 break;
2383 case 0x00:
2384 input_report_key(mydata->input, BTN_BACK, 0);
2385 input_report_key(mydata->input, BTN_FORWARD, 0);
2386 input_report_key(mydata->input, BTN_MIDDLE, 0);
2387 break;
2388 default:
2389 hid_err(hdev, "error in report\n");
2390 return 0;
2391 }
2392 input_sync(mydata->input);
2393
2394 } else if (data[0] == 0x02) {
2395 /*
2396 * Logitech M560 mouse report
2397 *
2398 * data[0] = type (0x02)
2399 * data[1..2] = buttons
2400 * data[3..5] = xy
2401 * data[6] = wheel
2402 */
2403
2404 int v;
2405
2406 input_report_key(mydata->input, BTN_LEFT,
2407 !!(data[1] & M560_MOUSE_BTN_LEFT));
2408 input_report_key(mydata->input, BTN_RIGHT,
2409 !!(data[1] & M560_MOUSE_BTN_RIGHT));
2410
2411 if (data[1] & M560_MOUSE_BTN_WHEEL_LEFT)
2412 input_report_rel(mydata->input, REL_HWHEEL, -1);
2413 else if (data[1] & M560_MOUSE_BTN_WHEEL_RIGHT)
2414 input_report_rel(mydata->input, REL_HWHEEL, 1);
2415
2416 v = hid_snto32(hid_field_extract(hdev, data+3, 0, 12), 12);
2417 input_report_rel(mydata->input, REL_X, v);
2418
2419 v = hid_snto32(hid_field_extract(hdev, data+3, 12, 12), 12);
2420 input_report_rel(mydata->input, REL_Y, v);
2421
2422 v = hid_snto32(data[6], 8);
5372fc37 2423 input_report_rel(mydata->input, REL_WHEEL, v);
8a09b4fa
GB		 2424
2425 input_sync(mydata->input);
2426 }
2427
2428 return 1;
2429}
2430
2431static void m560_populate_input(struct hidpp_device *hidpp,
2432 struct input_dev *input_dev, bool origin_is_hid_core)
2433{
2434 struct m560_private_data *mydata = hidpp->private_data;
2435
2436 mydata->input = input_dev;
2437
2438 __set_bit(EV_KEY, mydata->input->evbit);
2439 __set_bit(BTN_MIDDLE, mydata->input->keybit);
2440 __set_bit(BTN_RIGHT, mydata->input->keybit);
2441 __set_bit(BTN_LEFT, mydata->input->keybit);
2442 __set_bit(BTN_BACK, mydata->input->keybit);
2443 __set_bit(BTN_FORWARD, mydata->input->keybit);
2444
2445 __set_bit(EV_REL, mydata->input->evbit);
2446 __set_bit(REL_X, mydata->input->relbit);
2447 __set_bit(REL_Y, mydata->input->relbit);
2448 __set_bit(REL_WHEEL, mydata->input->relbit);
2449 __set_bit(REL_HWHEEL, mydata->input->relbit);
2450}
2451
2452static int m560_input_mapping(struct hid_device *hdev, struct hid_input *hi,
2453 struct hid_field *field, struct hid_usage *usage,
2454 unsigned long **bit, int *max)
2455{
2456 return -1;
2457}
2458
90cdd986
BT		 2459/* ------------------------------------------------------------------------- */
2460/* Logitech K400 devices */
2461/* ------------------------------------------------------------------------- */
2462
2463/*
2464 * The Logitech K400 keyboard has an embedded touchpad which is seen
2465 * as a mouse from the OS point of view. There is a hardware shortcut to disable
2466 * tap-to-click but the setting is not remembered accross reset, annoying some
2467 * users.
2468 *
2469 * We can toggle this feature from the host by using the feature 0x6010:
2470 * Touchpad FW items
2471 */
2472
2473struct k400_private_data {
2474 u8 feature_index;
2475};
2476
2477static int k400_disable_tap_to_click(struct hidpp_device *hidpp)
2478{
2479 struct k400_private_data *k400 = hidpp->private_data;
2480 struct hidpp_touchpad_fw_items items = {};
2481 int ret;
2482 u8 feature_type;
2483
2484 if (!k400->feature_index) {
2485 ret = hidpp_root_get_feature(hidpp,
2486 HIDPP_PAGE_TOUCHPAD_FW_ITEMS,
2487 &k400->feature_index, &feature_type);
2488 if (ret)
2489 /* means that the device is not powered up */
2490 return ret;
2491 }
2492
2493 ret = hidpp_touchpad_fw_items_set(hidpp, k400->feature_index, &items);
2494 if (ret)
2495 return ret;
2496
2497 return 0;
2498}
2499
2500static int k400_allocate(struct hid_device *hdev)
2501{
2502 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2503 struct k400_private_data *k400;
2504
2505 k400 = devm_kzalloc(&hdev->dev, sizeof(struct k400_private_data),
2506 GFP_KERNEL);
2507 if (!k400)
2508 return -ENOMEM;
2509
2510 hidpp->private_data = k400;
2511
2512 return 0;
2513};
2514
2515static int k400_connect(struct hid_device *hdev, bool connected)
2516{
2517 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2518
90cdd986
BT		 2519 if (!disable_tap_to_click)
2520 return 0;
2521
2522 return k400_disable_tap_to_click(hidpp);
2523}
2524
7f4b49fe
SW		 2525/* ------------------------------------------------------------------------- */
2526/* Logitech G920 Driving Force Racing Wheel for Xbox One */
2527/* ------------------------------------------------------------------------- */
2528
2529#define HIDPP_PAGE_G920_FORCE_FEEDBACK 0x8123
2530
7f4b49fe
SW		 2531static int g920_get_config(struct hidpp_device *hidpp)
2532{
7f4b49fe
SW		 2533 u8 feature_type;
2534 u8 feature_index;
2535 int ret;
2536
7f4b49fe
SW		 2537 /* Find feature and store for later use */
2538 ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_G920_FORCE_FEEDBACK,
2539 &feature_index, &feature_type);
2540 if (ret)
2541 return ret;
2542
ff21a635 2543 ret = hidpp_ff_init(hidpp, feature_index);
7f4b49fe 2544 if (ret)
ff21a635
EV		 2545 hid_warn(hidpp->hid_dev, "Unable to initialize force feedback support, errno %d\n",
2546 ret);
7f4b49fe
SW		 2547
2548 return 0;
2549}
2550
2f31c525
BT		 2551/* -------------------------------------------------------------------------- */
2552/* Generic HID++ devices */
2553/* -------------------------------------------------------------------------- */
2554
2555static int hidpp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
2556 struct hid_field *field, struct hid_usage *usage,
2557 unsigned long **bit, int *max)
2558{
2559 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2560
2561 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
2562 return wtp_input_mapping(hdev, hi, field, usage, bit, max);
8a09b4fa
GB		 2563 else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560 &&
2564 field->application != HID_GD_MOUSE)
2565 return m560_input_mapping(hdev, hi, field, usage, bit, max);
2f31c525
BT		 2566
2567 return 0;
2568}
2569
0b1804e3
SW		 2570static int hidpp_input_mapped(struct hid_device *hdev, struct hid_input *hi,
2571 struct hid_field *field, struct hid_usage *usage,
2572 unsigned long **bit, int *max)
2573{
2574 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2575
2576 /* Ensure that Logitech G920 is not given a default fuzz/flat value */
2577 if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
2578 if (usage->type == EV_ABS && (usage->code == ABS_X ||
2579 usage->code == ABS_Y || usage->code == ABS_Z ||
2580 usage->code == ABS_RZ)) {
2581 field->application = HID_GD_MULTIAXIS;
2582 }
2583 }
2584
2585 return 0;
2586}
2587
2588
c39e3d5f
BT		 2589static void hidpp_populate_input(struct hidpp_device *hidpp,
2590 struct input_dev *input, bool origin_is_hid_core)
2591{
2592 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
2593 wtp_populate_input(hidpp, input, origin_is_hid_core);
8a09b4fa
GB		 2594 else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560)
2595 m560_populate_input(hidpp, input, origin_is_hid_core);
c39e3d5f
BT		 2596}
2597
b2c68a2f 2598static int hidpp_input_configured(struct hid_device *hdev,
2f31c525
BT		 2599 struct hid_input *hidinput)
2600{
2601 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
c39e3d5f 2602 struct input_dev *input = hidinput->input;
2f31c525 2603
c39e3d5f 2604 hidpp_populate_input(hidpp, input, true);
b2c68a2f
DT		 2605
2606 return 0;
2f31c525
BT		 2607}
2608
2609static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data,
2610 int size)
2611{
2612 struct hidpp_report *question = hidpp->send_receive_buf;
2613 struct hidpp_report *answer = hidpp->send_receive_buf;
2614 struct hidpp_report *report = (struct hidpp_report *)data;
eb626c57 2615 int ret;
2f31c525
BT		 2616
2617 /*
2618 * If the mutex is locked then we have a pending answer from a
e529fea9 2619 * previously sent command.
2f31c525
BT		 2620 */
2621 if (unlikely(mutex_is_locked(&hidpp->send_mutex))) {
2622 /*
2623 * Check for a correct hidpp20 answer or the corresponding
2624 * error
2625 */
2626 if (hidpp_match_answer(question, report) ||
2627 hidpp_match_error(question, report)) {
2628 *answer = *report;
2629 hidpp->answer_available = true;
2630 wake_up(&hidpp->wait);
2631 /*
2632 * This was an answer to a command that this driver sent
2633 * We return 1 to hid-core to avoid forwarding the
2634 * command upstream as it has been treated by the driver
2635 */
2636
2637 return 1;
2638 }
2639 }
2640
c39e3d5f
BT		 2641 if (unlikely(hidpp_report_is_connect_event(report))) {
2642 atomic_set(&hidpp->connected,
2643 !(report->rap.params[0] & (1 << 6)));
6bd4e65d 2644 if (schedule_work(&hidpp->work) == 0)
c39e3d5f
BT		 2645 dbg_hid("%s: connect event already queued\n", __func__);
2646 return 1;
2647 }
2648
eb626c57
BT		 2649 if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) {
2650 ret = hidpp20_battery_event(hidpp, data, size);
2651 if (ret != 0)
2652 return ret;
696ecef9
BT		 2653 ret = hidpp_solar_battery_event(hidpp, data, size);
2654 if (ret != 0)
2655 return ret;
eb626c57
BT		 2656 }
2657
7f7ce2a2
BT		 2658 if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP10_BATTERY) {
2659 ret = hidpp10_battery_event(hidpp, data, size);
2660 if (ret != 0)
2661 return ret;
2662 }
2663
2f31c525
BT		 2664 return 0;
2665}
2666
2667static int hidpp_raw_event(struct hid_device *hdev, struct hid_report *report,
2668 u8 *data, int size)
2669{
2670 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
e529fea9 2671 int ret = 0;
2f31c525 2672
e529fea9 2673 /* Generic HID++ processing. */
2f31c525 2674 switch (data[0]) {
a5ce8f5b
SW		 2675 case REPORT_ID_HIDPP_VERY_LONG:
2676 if (size != HIDPP_REPORT_VERY_LONG_LENGTH) {
2677 hid_err(hdev, "received hid++ report of bad size (%d)",
2678 size);
2679 return 1;
2680 }
2681 ret = hidpp_raw_hidpp_event(hidpp, data, size);
2682 break;
2f31c525
BT		 2683 case REPORT_ID_HIDPP_LONG:
2684 if (size != HIDPP_REPORT_LONG_LENGTH) {
2685 hid_err(hdev, "received hid++ report of bad size (%d)",
2686 size);
2687 return 1;
2688 }
e529fea9
PW		 2689 ret = hidpp_raw_hidpp_event(hidpp, data, size);
2690 break;
2f31c525
BT		 2691 case REPORT_ID_HIDPP_SHORT:
2692 if (size != HIDPP_REPORT_SHORT_LENGTH) {
2693 hid_err(hdev, "received hid++ report of bad size (%d)",
2694 size);
2695 return 1;
2696 }
e529fea9
PW		 2697 ret = hidpp_raw_hidpp_event(hidpp, data, size);
2698 break;
2f31c525
BT		 2699 }
2700
e529fea9
PW		 2701 /* If no report is available for further processing, skip calling
2702 * raw_event of subclasses. */
2703 if (ret != 0)
2704 return ret;
2705
2f31c525
BT		 2706 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
2707 return wtp_raw_event(hdev, data, size);
8a09b4fa
GB		 2708 else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560)
2709 return m560_raw_event(hdev, data, size);
2f31c525
BT		 2710
2711 return 0;
2712}
2713
a52ec107
BT		 2714static int hidpp_initialize_battery(struct hidpp_device *hidpp)
2715{
2716 static atomic_t battery_no = ATOMIC_INIT(0);
2717 struct power_supply_config cfg = { .drv_data = hidpp };
2718 struct power_supply_desc *desc = &hidpp->battery.desc;
5b036ea1 2719 enum power_supply_property *battery_props;
a52ec107 2720 struct hidpp_battery *battery;
5b036ea1 2721 unsigned int num_battery_props;
a52ec107
BT		 2722 unsigned long n;
2723 int ret;
2724
2725 if (hidpp->battery.ps)
2726 return 0;
2727
696ecef9
BT		 2728 hidpp->battery.feature_index = 0xff;
2729 hidpp->battery.solar_feature_index = 0xff;
2730
a52ec107 2731 if (hidpp->protocol_major >= 2) {
696ecef9
BT		 2732 if (hidpp->quirks & HIDPP_QUIRK_CLASS_K750)
2733 ret = hidpp_solar_request_battery_event(hidpp);
2734 else
2735 ret = hidpp20_query_battery_info(hidpp);
2736
a52ec107
BT		 2737 if (ret)
2738 return ret;
2739 hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP20_BATTERY;
2740 } else {
7f7ce2a2
BT		 2741 ret = hidpp10_query_battery_status(hidpp);
2742 if (ret) {
2743 ret = hidpp10_query_battery_mileage(hidpp);
2744 if (ret)
2745 return -ENOENT;
2746 hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_MILEAGE;
2747 } else {
2748 hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS;
2749 }
2750 hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP10_BATTERY;
a52ec107
BT		 2751 }
2752
5b036ea1
BT		 2753 battery_props = devm_kmemdup(&hidpp->hid_dev->dev,
2754 hidpp_battery_props,
2755 sizeof(hidpp_battery_props),
2756 GFP_KERNEL);
929b60a8
GS		 2757 if (!battery_props)
2758 return -ENOMEM;
2759
5b036ea1
BT		 2760 num_battery_props = ARRAY_SIZE(hidpp_battery_props) - 2;
2761
2762 if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE)
2763 battery_props[num_battery_props++] =
2764 POWER_SUPPLY_PROP_CAPACITY;
2765
2766 if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS)
2767 battery_props[num_battery_props++] =
2768 POWER_SUPPLY_PROP_CAPACITY_LEVEL;
2769
a52ec107
BT		 2770 battery = &hidpp->battery;
2771
2772 n = atomic_inc_return(&battery_no) - 1;
5b036ea1
BT		 2773 desc->properties = battery_props;
2774 desc->num_properties = num_battery_props;
a52ec107
BT		 2775 desc->get_property = hidpp_battery_get_property;
2776 sprintf(battery->name, "hidpp_battery_%ld", n);
2777 desc->name = battery->name;
2778 desc->type = POWER_SUPPLY_TYPE_BATTERY;
2779 desc->use_for_apm = 0;
2780
2781 battery->ps = devm_power_supply_register(&hidpp->hid_dev->dev,
2782 &battery->desc,
2783 &cfg);
2784 if (IS_ERR(battery->ps))
2785 return PTR_ERR(battery->ps);
2786
2787 power_supply_powers(battery->ps, &hidpp->hid_dev->dev);
2788
2789 return ret;
2790}
2791
843c624e 2792static void hidpp_overwrite_name(struct hid_device *hdev)
2f31c525
BT		 2793{
2794 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2795 char *name;
2f31c525 2796
843c624e 2797 if (hidpp->protocol_major < 2)
b4f8ce07 2798 return;
843c624e
BT		 2799
2800 name = hidpp_get_device_name(hidpp);
2f31c525 2801
7bfd2927 2802 if (!name) {
2f31c525 2803 hid_err(hdev, "unable to retrieve the name of the device");
7bfd2927
SW		 2804 } else {
2805 dbg_hid("HID++: Got name: %s\n", name);
2f31c525 2806 snprintf(hdev->name, sizeof(hdev->name), "%s", name);
7bfd2927 2807 }
2f31c525
BT		 2808
2809 kfree(name);
2810}
2811
c39e3d5f
BT		 2812static int hidpp_input_open(struct input_dev *dev)
2813{
2814 struct hid_device *hid = input_get_drvdata(dev);
2815
2816 return hid_hw_open(hid);
2817}
2818
2819static void hidpp_input_close(struct input_dev *dev)
2820{
2821 struct hid_device *hid = input_get_drvdata(dev);
2822
2823 hid_hw_close(hid);
2824}
2825
2826static struct input_dev *hidpp_allocate_input(struct hid_device *hdev)
2827{
2828 struct input_dev *input_dev = devm_input_allocate_device(&hdev->dev);
005b3f57 2829 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
c39e3d5f
BT		 2830
2831 if (!input_dev)
2832 return NULL;
2833
2834 input_set_drvdata(input_dev, hdev);
2835 input_dev->open = hidpp_input_open;
2836 input_dev->close = hidpp_input_close;
2837
005b3f57 2838 input_dev->name = hidpp->name;
c39e3d5f
BT		 2839 input_dev->phys = hdev->phys;
2840 input_dev->uniq = hdev->uniq;
2841 input_dev->id.bustype = hdev->bus;
2842 input_dev->id.vendor = hdev->vendor;
2843 input_dev->id.product = hdev->product;
2844 input_dev->id.version = hdev->version;
2845 input_dev->dev.parent = &hdev->dev;
2846
2847 return input_dev;
2848}
2849
2850static void hidpp_connect_event(struct hidpp_device *hidpp)
2851{
2852 struct hid_device *hdev = hidpp->hid_dev;
2853 int ret = 0;
2854 bool connected = atomic_read(&hidpp->connected);
2855 struct input_dev *input;
2856 char *name, *devm_name;
c39e3d5f 2857
284f8d75
BT		 2858 if (!connected) {
2859 if (hidpp->battery.ps) {
2860 hidpp->battery.online = false;
2861 hidpp->battery.status = POWER_SUPPLY_STATUS_UNKNOWN;
5b036ea1 2862 hidpp->battery.level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
284f8d75
BT		 2863 power_supply_changed(hidpp->battery.ps);
2864 }
2936836f 2865 return;
284f8d75 2866 }
2936836f 2867
bf159447
BT		 2868 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
2869 ret = wtp_connect(hdev, connected);
2870 if (ret)
2871 return;
8a09b4fa
GB		 2872 } else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) {
2873 ret = m560_send_config_command(hdev, connected);
2874 if (ret)
2875 return;
90cdd986
BT		 2876 } else if (hidpp->quirks & HIDPP_QUIRK_CLASS_K400) {
2877 ret = k400_connect(hdev, connected);
2878 if (ret)
2879 return;
bf159447 2880 }
586bdc4e 2881
580a7e82
BT		 2882 /* the device is already connected, we can ask for its name and
2883 * protocol */
c39e3d5f
BT		 2884 if (!hidpp->protocol_major) {
2885 ret = !hidpp_is_connected(hidpp);
2886 if (ret) {
2887 hid_err(hdev, "Can not get the protocol version.\n");
2888 return;
2889 }
580a7e82
BT		 2890 hid_info(hdev, "HID++ %u.%u device connected.\n",
2891 hidpp->protocol_major, hidpp->protocol_minor);
c39e3d5f
BT		 2892 }
2893
187f2bba 2894 if (hidpp->name == hdev->name && hidpp->protocol_major >= 2) {
005b3f57
BT		 2895 name = hidpp_get_device_name(hidpp);
2896 if (!name) {
2897 hid_err(hdev,
2898 "unable to retrieve the name of the device");
2899 return;
2900 }
2901
2902 devm_name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "%s", name);
2903 kfree(name);
2904 if (!devm_name)
2905 return;
2906
2907 hidpp->name = devm_name;
2908 }
2909
187f2bba
BT		 2910 hidpp_initialize_battery(hidpp);
2911
9b9c519f 2912 /* forward current battery state */
7f7ce2a2
BT		 2913 if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP10_BATTERY) {
2914 hidpp10_enable_battery_reporting(hidpp);
2915 if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE)
2916 hidpp10_query_battery_mileage(hidpp);
2917 else
2918 hidpp10_query_battery_status(hidpp);
2919 } else if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) {
9b9c519f 2920 hidpp20_query_battery_info(hidpp);
9b9c519f 2921 }
7f7ce2a2
BT		 2922 if (hidpp->battery.ps)
2923 power_supply_changed(hidpp->battery.ps);
9b9c519f 2924
2936836f
BT		 2925 if (!(hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT) || hidpp->delayed_input)
2926 /* if the input nodes are already created, we can stop now */
187f2bba
BT		 2927 return;
2928
c39e3d5f
BT		 2929 input = hidpp_allocate_input(hdev);
2930 if (!input) {
2931 hid_err(hdev, "cannot allocate new input device: %d\n", ret);
2932 return;
2933 }
2934
c39e3d5f
BT		 2935 hidpp_populate_input(hidpp, input, false);
2936
2937 ret = input_register_device(input);
2938 if (ret)
2939 input_free_device(input);
2940
2941 hidpp->delayed_input = input;
2942}
2943
a4bf6153
BT		 2944static DEVICE_ATTR(builtin_power_supply, 0000, NULL, NULL);
2945
2946static struct attribute *sysfs_attrs[] = {
2947 &dev_attr_builtin_power_supply.attr,
2948 NULL
2949};
2950
35a33cb5 2951static const struct attribute_group ps_attribute_group = {
a4bf6153
BT		 2952 .attrs = sysfs_attrs
2953};
2954
2f31c525
BT		 2955static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
2956{
2957 struct hidpp_device *hidpp;
2958 int ret;
2959 bool connected;
c39e3d5f 2960 unsigned int connect_mask = HID_CONNECT_DEFAULT;
2f31c525
BT		 2961
2962 hidpp = devm_kzalloc(&hdev->dev, sizeof(struct hidpp_device),
2963 GFP_KERNEL);
2964 if (!hidpp)
2965 return -ENOMEM;
2966
2967 hidpp->hid_dev = hdev;
005b3f57 2968 hidpp->name = hdev->name;
2f31c525
BT		 2969 hid_set_drvdata(hdev, hidpp);
2970
2971 hidpp->quirks = id->driver_data;
2972
843c624e
BT		 2973 if (id->group == HID_GROUP_LOGITECH_DJ_DEVICE)
2974 hidpp->quirks |= HIDPP_QUIRK_UNIFYING;
2975
9188dbae
BT		 2976 if (disable_raw_mode) {
2977 hidpp->quirks &= ~HIDPP_QUIRK_CLASS_WTP;
580a7e82 2978 hidpp->quirks &= ~HIDPP_QUIRK_NO_HIDINPUT;
9188dbae
BT		 2979 }
2980
2f31c525
BT		 2981 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
2982 ret = wtp_allocate(hdev, id);
2983 if (ret)
8a09b4fa
GB		 2984 goto allocate_fail;
2985 } else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) {
2986 ret = m560_allocate(hdev);
2987 if (ret)
2988 goto allocate_fail;
90cdd986
BT		 2989 } else if (hidpp->quirks & HIDPP_QUIRK_CLASS_K400) {
2990 ret = k400_allocate(hdev);
2991 if (ret)
2992 goto allocate_fail;
2f31c525
BT		 2993 }
2994
c39e3d5f 2995 INIT_WORK(&hidpp->work, delayed_work_cb);
2f31c525
BT		 2996 mutex_init(&hidpp->send_mutex);
2997 init_waitqueue_head(&hidpp->wait);
2998
a4bf6153
BT		 2999 /* indicates we are handling the battery properties in the kernel */
3000 ret = sysfs_create_group(&hdev->dev.kobj, &ps_attribute_group);
3001 if (ret)
3002 hid_warn(hdev, "Cannot allocate sysfs group for %s\n",
3003 hdev->name);
3004
2f31c525
BT		 3005 ret = hid_parse(hdev);
3006 if (ret) {
3007 hid_err(hdev, "%s:parse failed\n", __func__);
3008 goto hid_parse_fail;
3009 }
3010
7bfd2927
SW		 3011 if (hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT)
3012 connect_mask &= ~HID_CONNECT_HIDINPUT;
3013
3014 if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
3015 ret = hid_hw_start(hdev, connect_mask);
3016 if (ret) {
3017 hid_err(hdev, "hw start failed\n");
3018 goto hid_hw_start_fail;
3019 }
3020 ret = hid_hw_open(hdev);
3021 if (ret < 0) {
3022 dev_err(&hdev->dev, "%s:hid_hw_open returned error:%d\n",
3023 __func__, ret);
3024 hid_hw_stop(hdev);
3025 goto hid_hw_start_fail;
3026 }
3027 }
3028
3029
2f31c525
BT		 3030 /* Allow incoming packets */
3031 hid_device_io_start(hdev);
3032
843c624e
BT		 3033 if (hidpp->quirks & HIDPP_QUIRK_UNIFYING)
3034 hidpp_unifying_init(hidpp);
3035
2f31c525 3036 connected = hidpp_is_connected(hidpp);
843c624e
BT		 3037 atomic_set(&hidpp->connected, connected);
3038 if (!(hidpp->quirks & HIDPP_QUIRK_UNIFYING)) {
ab94e562 3039 if (!connected) {
b832da56 3040 ret = -ENODEV;
ab94e562 3041 hid_err(hdev, "Device not connected");
7bfd2927 3042 goto hid_hw_open_failed;
ab94e562 3043 }
2f31c525 3044
ab94e562
BT		 3045 hid_info(hdev, "HID++ %u.%u device connected.\n",
3046 hidpp->protocol_major, hidpp->protocol_minor);
2f31c525 3047
843c624e
BT		 3048 hidpp_overwrite_name(hdev);
3049 }
33797820 3050
c39e3d5f 3051 if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)) {
2f31c525
BT		 3052 ret = wtp_get_config(hidpp);
3053 if (ret)
7bfd2927 3054 goto hid_hw_open_failed;
7f4b49fe
SW		 3055 } else if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) {
3056 ret = g920_get_config(hidpp);
3057 if (ret)
3058 goto hid_hw_open_failed;
2f31c525
BT		 3059 }
3060
3061 /* Block incoming packets */
3062 hid_device_io_stop(hdev);
3063
7bfd2927
SW		 3064 if (!(hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) {
3065 ret = hid_hw_start(hdev, connect_mask);
3066 if (ret) {
3067 hid_err(hdev, "%s:hid_hw_start returned error\n", __func__);
3068 goto hid_hw_start_fail;
3069 }
2f31c525
BT		 3070 }
3071
6bd4e65d
BT		 3072 /* Allow incoming packets */
3073 hid_device_io_start(hdev);
c39e3d5f 3074
6bd4e65d 3075 hidpp_connect_event(hidpp);
c39e3d5f 3076
2f31c525
BT		 3077 return ret;
3078
7bfd2927
SW		 3079hid_hw_open_failed:
3080 hid_device_io_stop(hdev);
3081 if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
3082 hid_hw_close(hdev);
3083 hid_hw_stop(hdev);
3084 }
2f31c525
BT		 3085hid_hw_start_fail:
3086hid_parse_fail:
a4bf6153 3087 sysfs_remove_group(&hdev->dev.kobj, &ps_attribute_group);
c39e3d5f 3088 cancel_work_sync(&hidpp->work);
2f31c525 3089 mutex_destroy(&hidpp->send_mutex);
8a09b4fa 3090allocate_fail:
2f31c525
BT		 3091 hid_set_drvdata(hdev, NULL);
3092 return ret;
3093}
3094
3095static void hidpp_remove(struct hid_device *hdev)
3096{
3097 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
3098
a4bf6153
BT		 3099 sysfs_remove_group(&hdev->dev.kobj, &ps_attribute_group);
3100
7f4b49fe 3101 if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
ff21a635 3102 hidpp_ff_deinit(hdev);
7bfd2927 3103 hid_hw_close(hdev);
7f4b49fe 3104 }
7bfd2927 3105 hid_hw_stop(hdev);
c39e3d5f 3106 cancel_work_sync(&hidpp->work);
2f31c525 3107 mutex_destroy(&hidpp->send_mutex);
2f31c525
BT		 3108}
3109
3110static const struct hid_device_id hidpp_devices[] = {
57ac86cf 3111 { /* wireless touchpad */
a69616d5
BT		 3112 HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
3113 USB_VENDOR_ID_LOGITECH, 0x4011),
57ac86cf
BT		 3114 .driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT |
3115 HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS },
586bdc4e 3116 { /* wireless touchpad T650 */
a69616d5
BT		 3117 HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
3118 USB_VENDOR_ID_LOGITECH, 0x4101),
586bdc4e 3119 .driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT },
2f31c525
BT		 3120 { /* wireless touchpad T651 */
3121 HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
3122 USB_DEVICE_ID_LOGITECH_T651),
3123 .driver_data = HIDPP_QUIRK_CLASS_WTP },
8a09b4fa 3124 { /* Mouse logitech M560 */
5372fc37
BT		 3125 HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
3126 USB_VENDOR_ID_LOGITECH, 0x402d),
3127 .driver_data = HIDPP_QUIRK_DELAYED_INIT | HIDPP_QUIRK_CLASS_M560 },
90cdd986 3128 { /* Keyboard logitech K400 */
a69616d5
BT		 3129 HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
3130 USB_VENDOR_ID_LOGITECH, 0x4024),
6bd4e65d 3131 .driver_data = HIDPP_QUIRK_CLASS_K400 },
696ecef9 3132 { /* Solar Keyboard Logitech K750 */
a69616d5
BT		 3133 HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
3134 USB_VENDOR_ID_LOGITECH, 0x4002),
696ecef9 3135 .driver_data = HIDPP_QUIRK_CLASS_K750 },
ab94e562 3136
a69616d5
BT		 3137 { HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
3138 USB_VENDOR_ID_LOGITECH, HID_ANY_ID)},
7bfd2927
SW		 3139
3140 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL),
3141 .driver_data = HIDPP_QUIRK_CLASS_G920 | HIDPP_QUIRK_FORCE_OUTPUT_REPORTS},
2f31c525
BT		 3142 {}
3143};
3144
3145MODULE_DEVICE_TABLE(hid, hidpp_devices);
3146
3147static struct hid_driver hidpp_driver = {
3148 .name = "logitech-hidpp-device",
3149 .id_table = hidpp_devices,
3150 .probe = hidpp_probe,
3151 .remove = hidpp_remove,
3152 .raw_event = hidpp_raw_event,
3153 .input_configured = hidpp_input_configured,
3154 .input_mapping = hidpp_input_mapping,
0b1804e3 3155 .input_mapped = hidpp_input_mapped,
2f31c525
BT		 3156};
3157
3158module_hid_driver(hidpp_driver);
Linux 6.x block layer and io_uring tree(s)