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HID: logitech-hidpp: allow non HID++ devices to be handled by this module
[linux-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>
4435ff2f 24#include <linux/sched/clock.h>
2f31c525
BT		 25#include <linux/kfifo.h>
26#include <linux/input/mt.h>
ff21a635
EV		 27#include <linux/workqueue.h>
28#include <linux/atomic.h>
29#include <linux/fixp-arith.h>
2f31c525 30#include <asm/unaligned.h>
ff21a635 31#include "usbhid/usbhid.h"
2f31c525
BT		 32#include "hid-ids.h"
33
34MODULE_LICENSE("GPL");
35MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
36MODULE_AUTHOR("Nestor Lopez Casado <nlopezcasad@logitech.com>");
37
9188dbae
BT		 38static bool disable_raw_mode;
39module_param(disable_raw_mode, bool, 0644);
40MODULE_PARM_DESC(disable_raw_mode,
41 "Disable Raw mode reporting for touchpads and keep firmware gestures.");
42
90cdd986
BT		 43static bool disable_tap_to_click;
44module_param(disable_tap_to_click, bool, 0644);
45MODULE_PARM_DESC(disable_tap_to_click,
46 "Disable Tap-To-Click mode reporting for touchpads (only on the K400 currently).");
47
2f31c525
BT		 48#define REPORT_ID_HIDPP_SHORT 0x10
49#define REPORT_ID_HIDPP_LONG 0x11
a5ce8f5b 50#define REPORT_ID_HIDPP_VERY_LONG 0x12
2f31c525
BT		 51
52#define HIDPP_REPORT_SHORT_LENGTH 7
53#define HIDPP_REPORT_LONG_LENGTH 20
a5ce8f5b 54#define HIDPP_REPORT_VERY_LONG_LENGTH 64
2f31c525
BT		 55
56#define HIDPP_QUIRK_CLASS_WTP BIT(0)
8a09b4fa 57#define HIDPP_QUIRK_CLASS_M560 BIT(1)
90cdd986 58#define HIDPP_QUIRK_CLASS_K400 BIT(2)
7bfd2927 59#define HIDPP_QUIRK_CLASS_G920 BIT(3)
696ecef9 60#define HIDPP_QUIRK_CLASS_K750 BIT(4)
2f31c525 61
8a09b4fa 62/* bits 2..20 are reserved for classes */
6bd4e65d 63/* #define HIDPP_QUIRK_CONNECT_EVENTS BIT(21) disabled */
57ac86cf 64#define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS BIT(22)
580a7e82 65#define HIDPP_QUIRK_NO_HIDINPUT BIT(23)
7bfd2927 66#define HIDPP_QUIRK_FORCE_OUTPUT_REPORTS BIT(24)
843c624e 67#define HIDPP_QUIRK_UNIFYING BIT(25)
4435ff2f
HC		 68#define HIDPP_QUIRK_HI_RES_SCROLL_1P0 BIT(26)
69#define HIDPP_QUIRK_HI_RES_SCROLL_X2120 BIT(27)
70#define HIDPP_QUIRK_HI_RES_SCROLL_X2121 BIT(28)
71
72/* Convenience constant to check for any high-res support. */
73#define HIDPP_QUIRK_HI_RES_SCROLL (HIDPP_QUIRK_HI_RES_SCROLL_1P0 | \
74 HIDPP_QUIRK_HI_RES_SCROLL_X2120 | \
75 HIDPP_QUIRK_HI_RES_SCROLL_X2121)
580a7e82 76
6bd4e65d 77#define HIDPP_QUIRK_DELAYED_INIT HIDPP_QUIRK_NO_HIDINPUT
c39e3d5f 78
206d7c68
BT		 79#define HIDPP_CAPABILITY_HIDPP10_BATTERY BIT(0)
80#define HIDPP_CAPABILITY_HIDPP20_BATTERY BIT(1)
5b036ea1
BT		 81#define HIDPP_CAPABILITY_BATTERY_MILEAGE BIT(2)
82#define HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS BIT(3)
206d7c68 83
2f31c525
BT		 84/*
85 * There are two hidpp protocols in use, the first version hidpp10 is known
86 * as register access protocol or RAP, the second version hidpp20 is known as
87 * feature access protocol or FAP
88 *
89 * Most older devices (including the Unifying usb receiver) use the RAP protocol
90 * where as most newer devices use the FAP protocol. Both protocols are
91 * compatible with the underlying transport, which could be usb, Unifiying, or
92 * bluetooth. The message lengths are defined by the hid vendor specific report
93 * descriptor for the HIDPP_SHORT report type (total message lenth 7 bytes) and
94 * the HIDPP_LONG report type (total message length 20 bytes)
95 *
96 * The RAP protocol uses both report types, whereas the FAP only uses HIDPP_LONG
97 * messages. The Unifying receiver itself responds to RAP messages (device index
98 * is 0xFF for the receiver), and all messages (short or long) with a device
99 * index between 1 and 6 are passed untouched to the corresponding paired
100 * Unifying device.
101 *
102 * The paired device can be RAP or FAP, it will receive the message untouched
103 * from the Unifiying receiver.
104 */
105
106struct fap {
107 u8 feature_index;
108 u8 funcindex_clientid;
a5ce8f5b 109 u8 params[HIDPP_REPORT_VERY_LONG_LENGTH - 4U];
2f31c525
BT		 110};
111
112struct rap {
113 u8 sub_id;
114 u8 reg_address;
a5ce8f5b 115 u8 params[HIDPP_REPORT_VERY_LONG_LENGTH - 4U];
2f31c525
BT		 116};
117
118struct hidpp_report {
119 u8 report_id;
120 u8 device_index;
121 union {
122 struct fap fap;
123 struct rap rap;
124 u8 rawbytes[sizeof(struct fap)];
125 };
126} __packed;
127
5a2b190c
PH		 128struct hidpp_battery {
129 u8 feature_index;
696ecef9 130 u8 solar_feature_index;
5a2b190c
PH		 131 struct power_supply_desc desc;
132 struct power_supply *ps;
133 char name[64];
134 int status;
14f437a1 135 int capacity;
5b036ea1 136 int level;
284f8d75 137 bool online;
5a2b190c
PH		 138};
139
4435ff2f
HC		 140/**
141 * struct hidpp_scroll_counter - Utility class for processing high-resolution
142 * scroll events.
143 * @dev: the input device for which events should be reported.
144 * @wheel_multiplier: the scalar multiplier to be applied to each wheel event
145 * @remainder: counts the number of high-resolution units moved since the last
146 * low-resolution event (REL_WHEEL or REL_HWHEEL) was sent. Should
147 * only be used by class methods.
148 * @direction: direction of last movement (1 or -1)
149 * @last_time: last event time, used to reset remainder after inactivity
150 */
151struct hidpp_scroll_counter {
152 struct input_dev *dev;
153 int wheel_multiplier;
154 int remainder;
155 int direction;
156 unsigned long long last_time;
157};
158
2f31c525
BT		 159struct hidpp_device {
160 struct hid_device *hid_dev;
161 struct mutex send_mutex;
162 void *send_receive_buf;
005b3f57 163 char *name; /* will never be NULL and should not be freed */
2f31c525
BT		 164 wait_queue_head_t wait;
165 bool answer_available;
166 u8 protocol_major;
167 u8 protocol_minor;
168
169 void *private_data;
170
c39e3d5f
BT		 171 struct work_struct work;
172 struct kfifo delayed_work_fifo;
173 atomic_t connected;
174 struct input_dev *delayed_input;
175
2f31c525 176 unsigned long quirks;
206d7c68 177 unsigned long capabilities;
2f31c525 178
5a2b190c 179 struct hidpp_battery battery;
4435ff2f 180 struct hidpp_scroll_counter vertical_wheel_counter;
5a2b190c 181};
2f31c525 182
f677bb15 183/* HID++ 1.0 error codes */
2f31c525
BT		 184#define HIDPP_ERROR 0x8f
185#define HIDPP_ERROR_SUCCESS 0x00
186#define HIDPP_ERROR_INVALID_SUBID 0x01
187#define HIDPP_ERROR_INVALID_ADRESS 0x02
188#define HIDPP_ERROR_INVALID_VALUE 0x03
189#define HIDPP_ERROR_CONNECT_FAIL 0x04
190#define HIDPP_ERROR_TOO_MANY_DEVICES 0x05
191#define HIDPP_ERROR_ALREADY_EXISTS 0x06
192#define HIDPP_ERROR_BUSY 0x07
193#define HIDPP_ERROR_UNKNOWN_DEVICE 0x08
194#define HIDPP_ERROR_RESOURCE_ERROR 0x09
195#define HIDPP_ERROR_REQUEST_UNAVAILABLE 0x0a
196#define HIDPP_ERROR_INVALID_PARAM_VALUE 0x0b
197#define HIDPP_ERROR_WRONG_PIN_CODE 0x0c
f677bb15
PW		 198/* HID++ 2.0 error codes */
199#define HIDPP20_ERROR 0xff
2f31c525 200
c39e3d5f
BT		 201static void hidpp_connect_event(struct hidpp_device *hidpp_dev);
202
2f31c525
BT		 203static int __hidpp_send_report(struct hid_device *hdev,
204 struct hidpp_report *hidpp_report)
205{
7bfd2927 206 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2f31c525
BT		 207 int fields_count, ret;
208
7bfd2927
SW		 209 hidpp = hid_get_drvdata(hdev);
210
2f31c525
BT		 211 switch (hidpp_report->report_id) {
212 case REPORT_ID_HIDPP_SHORT:
213 fields_count = HIDPP_REPORT_SHORT_LENGTH;
214 break;
215 case REPORT_ID_HIDPP_LONG:
216 fields_count = HIDPP_REPORT_LONG_LENGTH;
217 break;
a5ce8f5b
SW		 218 case REPORT_ID_HIDPP_VERY_LONG:
219 fields_count = HIDPP_REPORT_VERY_LONG_LENGTH;
220 break;
2f31c525
BT		 221 default:
222 return -ENODEV;
223 }
224
225 /*
226 * set the device_index as the receiver, it will be overwritten by
227 * hid_hw_request if needed
228 */
229 hidpp_report->device_index = 0xff;
230
7bfd2927
SW		 231 if (hidpp->quirks & HIDPP_QUIRK_FORCE_OUTPUT_REPORTS) {
232 ret = hid_hw_output_report(hdev, (u8 *)hidpp_report, fields_count);
233 } else {
234 ret = hid_hw_raw_request(hdev, hidpp_report->report_id,
235 (u8 *)hidpp_report, fields_count, HID_OUTPUT_REPORT,
236 HID_REQ_SET_REPORT);
237 }
2f31c525
BT		 238
239 return ret == fields_count ? 0 : -1;
240}
241
8c9952b2
BT		 242/**
243 * hidpp_send_message_sync() returns 0 in case of success, and something else
244 * in case of a failure.
245 * - If ' something else' is positive, that means that an error has been raised
246 * by the protocol itself.
247 * - If ' something else' is negative, that means that we had a classic error
248 * (-ENOMEM, -EPIPE, etc...)
249 */
2f31c525
BT		 250static int hidpp_send_message_sync(struct hidpp_device *hidpp,
251 struct hidpp_report *message,
252 struct hidpp_report *response)
253{
254 int ret;
255
256 mutex_lock(&hidpp->send_mutex);
257
258 hidpp->send_receive_buf = response;
259 hidpp->answer_available = false;
260
261 /*
262 * So that we can later validate the answer when it arrives
263 * in hidpp_raw_event
264 */
265 *response = *message;
266
267 ret = __hidpp_send_report(hidpp->hid_dev, message);
268
269 if (ret) {
270 dbg_hid("__hidpp_send_report returned err: %d\n", ret);
271 memset(response, 0, sizeof(struct hidpp_report));
272 goto exit;
273 }
274
275 if (!wait_event_timeout(hidpp->wait, hidpp->answer_available,
276 5*HZ)) {
277 dbg_hid("%s:timeout waiting for response\n", __func__);
278 memset(response, 0, sizeof(struct hidpp_report));
279 ret = -ETIMEDOUT;
280 }
281
282 if (response->report_id == REPORT_ID_HIDPP_SHORT &&
f677bb15
PW		 283 response->rap.sub_id == HIDPP_ERROR) {
284 ret = response->rap.params[1];
285 dbg_hid("%s:got hidpp error %02X\n", __func__, ret);
286 goto exit;
287 }
288
a5ce8f5b
SW		 289 if ((response->report_id == REPORT_ID_HIDPP_LONG ||
290 response->report_id == REPORT_ID_HIDPP_VERY_LONG) &&
291 response->fap.feature_index == HIDPP20_ERROR) {
2f31c525 292 ret = response->fap.params[1];
f677bb15 293 dbg_hid("%s:got hidpp 2.0 error %02X\n", __func__, ret);
2f31c525
BT		 294 goto exit;
295 }
296
297exit:
298 mutex_unlock(&hidpp->send_mutex);
299 return ret;
300
301}
302
303static int hidpp_send_fap_command_sync(struct hidpp_device *hidpp,
304 u8 feat_index, u8 funcindex_clientid, u8 *params, int param_count,
305 struct hidpp_report *response)
306{
3e7830ce 307 struct hidpp_report *message;
2f31c525
BT		 308 int ret;
309
310 if (param_count > sizeof(message->fap.params))
311 return -EINVAL;
312
3e7830ce
DC		 313 message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
314 if (!message)
315 return -ENOMEM;
a5ce8f5b
SW		 316
317 if (param_count > (HIDPP_REPORT_LONG_LENGTH - 4))
318 message->report_id = REPORT_ID_HIDPP_VERY_LONG;
319 else
320 message->report_id = REPORT_ID_HIDPP_LONG;
2f31c525
BT		 321 message->fap.feature_index = feat_index;
322 message->fap.funcindex_clientid = funcindex_clientid;
323 memcpy(&message->fap.params, params, param_count);
324
325 ret = hidpp_send_message_sync(hidpp, message, response);
326 kfree(message);
327 return ret;
328}
329
33797820
BT		 330static int hidpp_send_rap_command_sync(struct hidpp_device *hidpp_dev,
331 u8 report_id, u8 sub_id, u8 reg_address, u8 *params, int param_count,
332 struct hidpp_report *response)
333{
3e7830ce 334 struct hidpp_report *message;
a5ce8f5b 335 int ret, max_count;
33797820 336
a5ce8f5b
SW		 337 switch (report_id) {
338 case REPORT_ID_HIDPP_SHORT:
339 max_count = HIDPP_REPORT_SHORT_LENGTH - 4;
340 break;
341 case REPORT_ID_HIDPP_LONG:
342 max_count = HIDPP_REPORT_LONG_LENGTH - 4;
343 break;
344 case REPORT_ID_HIDPP_VERY_LONG:
345 max_count = HIDPP_REPORT_VERY_LONG_LENGTH - 4;
346 break;
347 default:
33797820 348 return -EINVAL;
a5ce8f5b 349 }
33797820 350
a5ce8f5b 351 if (param_count > max_count)
33797820
BT		 352 return -EINVAL;
353
3e7830ce
DC		 354 message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
355 if (!message)
356 return -ENOMEM;
33797820
BT		 357 message->report_id = report_id;
358 message->rap.sub_id = sub_id;
359 message->rap.reg_address = reg_address;
360 memcpy(&message->rap.params, params, param_count);
361
362 ret = hidpp_send_message_sync(hidpp_dev, message, response);
363 kfree(message);
364 return ret;
365}
366
c39e3d5f
BT		 367static void delayed_work_cb(struct work_struct *work)
368{
369 struct hidpp_device *hidpp = container_of(work, struct hidpp_device,
370 work);
371 hidpp_connect_event(hidpp);
372}
373
2f31c525
BT		 374static inline bool hidpp_match_answer(struct hidpp_report *question,
375 struct hidpp_report *answer)
376{
377 return (answer->fap.feature_index == question->fap.feature_index) &&
378 (answer->fap.funcindex_clientid == question->fap.funcindex_clientid);
379}
380
381static inline bool hidpp_match_error(struct hidpp_report *question,
382 struct hidpp_report *answer)
383{
f677bb15
PW		 384 return ((answer->rap.sub_id == HIDPP_ERROR) ||
385 (answer->fap.feature_index == HIDPP20_ERROR)) &&
2f31c525
BT		 386 (answer->fap.funcindex_clientid == question->fap.feature_index) &&
387 (answer->fap.params[0] == question->fap.funcindex_clientid);
388}
389
c39e3d5f
BT		 390static inline bool hidpp_report_is_connect_event(struct hidpp_report *report)
391{
392 return (report->report_id == REPORT_ID_HIDPP_SHORT) &&
393 (report->rap.sub_id == 0x41);
394}
395
a0e625f8
BT		 396/**
397 * hidpp_prefix_name() prefixes the current given name with "Logitech ".
398 */
399static void hidpp_prefix_name(char **name, int name_length)
400{
401#define PREFIX_LENGTH 9 /* "Logitech " */
402
403 int new_length;
404 char *new_name;
405
406 if (name_length > PREFIX_LENGTH &&
407 strncmp(*name, "Logitech ", PREFIX_LENGTH) == 0)
408 /* The prefix has is already in the name */
409 return;
410
411 new_length = PREFIX_LENGTH + name_length;
412 new_name = kzalloc(new_length, GFP_KERNEL);
413 if (!new_name)
414 return;
415
416 snprintf(new_name, new_length, "Logitech %s", *name);
417
418 kfree(*name);
419
420 *name = new_name;
421}
422
4435ff2f
HC		 423/**
424 * hidpp_scroll_counter_handle_scroll() - Send high- and low-resolution scroll
425 * events given a high-resolution wheel
426 * movement.
427 * @counter: a hid_scroll_counter struct describing the wheel.
428 * @hi_res_value: the movement of the wheel, in the mouse's high-resolution
429 * units.
430 *
431 * Given a high-resolution movement, this function converts the movement into
432 * fractions of 120 and emits high-resolution scroll events for the input
433 * device. It also uses the multiplier from &struct hid_scroll_counter to
434 * emit low-resolution scroll events when appropriate for
435 * backwards-compatibility with userspace input libraries.
436 */
437static void hidpp_scroll_counter_handle_scroll(struct hidpp_scroll_counter *counter,
438 int hi_res_value)
439{
440 int low_res_value, remainder, direction;
441 unsigned long long now, previous;
442
443 hi_res_value = hi_res_value * 120/counter->wheel_multiplier;
444 input_report_rel(counter->dev, REL_WHEEL_HI_RES, hi_res_value);
445
446 remainder = counter->remainder;
447 direction = hi_res_value > 0 ? 1 : -1;
448
449 now = sched_clock();
450 previous = counter->last_time;
451 counter->last_time = now;
452 /*
453 * Reset the remainder after a period of inactivity or when the
454 * direction changes. This prevents the REL_WHEEL emulation point
455 * from sliding for devices that don't always provide the same
456 * number of movements per detent.
457 */
458 if (now - previous > 1000000000 || direction != counter->direction)
459 remainder = 0;
460
461 counter->direction = direction;
462 remainder += hi_res_value;
463
464 /* Some wheels will rest 7/8ths of a detent from the previous detent
465 * after slow movement, so we want the threshold for low-res events to
466 * be in the middle between two detents (e.g. after 4/8ths) as
467 * opposed to on the detents themselves (8/8ths).
468 */
469 if (abs(remainder) >= 60) {
470 /* Add (or subtract) 1 because we want to trigger when the wheel
471 * is half-way to the next detent (i.e. scroll 1 detent after a
472 * 1/2 detent movement, 2 detents after a 1 1/2 detent movement,
473 * etc.).
474 */
475 low_res_value = remainder / 120;
476 if (low_res_value == 0)
477 low_res_value = (hi_res_value > 0 ? 1 : -1);
478 input_report_rel(counter->dev, REL_WHEEL, low_res_value);
479 remainder -= low_res_value * 120;
480 }
481 counter->remainder = remainder;
482}
483
33797820
BT		 484/* -------------------------------------------------------------------------- */
485/* HIDP++ 1.0 commands */
486/* -------------------------------------------------------------------------- */
487
488#define HIDPP_SET_REGISTER 0x80
489#define HIDPP_GET_REGISTER 0x81
490#define HIDPP_SET_LONG_REGISTER 0x82
491#define HIDPP_GET_LONG_REGISTER 0x83
492
95c3d002
HC		 493/**
494 * hidpp10_set_register_bit() - Sets a single bit in a HID++ 1.0 register.
495 * @hidpp_dev: the device to set the register on.
496 * @register_address: the address of the register to modify.
497 * @byte: the byte of the register to modify. Should be less than 3.
498 * Return: 0 if successful, otherwise a negative error code.
499 */
500static int hidpp10_set_register_bit(struct hidpp_device *hidpp_dev,
501 u8 register_address, u8 byte, u8 bit)
7f7ce2a2
BT		 502{
503 struct hidpp_report response;
504 int ret;
505 u8 params[3] = { 0 };
506
507 ret = hidpp_send_rap_command_sync(hidpp_dev,
95c3d002
HC		 508 REPORT_ID_HIDPP_SHORT,
509 HIDPP_GET_REGISTER,
510 register_address,
511 NULL, 0, &response);
7f7ce2a2
BT		 512 if (ret)
513 return ret;
514
515 memcpy(params, response.rap.params, 3);
516
95c3d002 517 params[byte] |= BIT(bit);
7f7ce2a2
BT		 518
519 return hidpp_send_rap_command_sync(hidpp_dev,
95c3d002
HC		 520 REPORT_ID_HIDPP_SHORT,
521 HIDPP_SET_REGISTER,
522 register_address,
523 params, 3, &response);
524}
525
526
527#define HIDPP_REG_GENERAL 0x00
528
529static int hidpp10_enable_battery_reporting(struct hidpp_device *hidpp_dev)
530{
531 return hidpp10_set_register_bit(hidpp_dev, HIDPP_REG_GENERAL, 0, 4);
532}
533
534#define HIDPP_REG_FEATURES 0x01
535
536/* On HID++ 1.0 devices, high-res scroll was called "scrolling acceleration". */
537static int hidpp10_enable_scrolling_acceleration(struct hidpp_device *hidpp_dev)
538{
539 return hidpp10_set_register_bit(hidpp_dev, HIDPP_REG_FEATURES, 0, 6);
7f7ce2a2
BT		 540}
541
542#define HIDPP_REG_BATTERY_STATUS 0x07
543
544static int hidpp10_battery_status_map_level(u8 param)
545{
546 int level;
547
548 switch (param) {
549 case 1 ... 2:
550 level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
551 break;
552 case 3 ... 4:
553 level = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
554 break;
555 case 5 ... 6:
556 level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
557 break;
558 case 7:
559 level = POWER_SUPPLY_CAPACITY_LEVEL_HIGH;
560 break;
561 default:
562 level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
563 }
564
565 return level;
566}
567
568static int hidpp10_battery_status_map_status(u8 param)
569{
570 int status;
571
572 switch (param) {
573 case 0x00:
574 /* discharging (in use) */
575 status = POWER_SUPPLY_STATUS_DISCHARGING;
576 break;
577 case 0x21: /* (standard) charging */
578 case 0x24: /* fast charging */
579 case 0x25: /* slow charging */
580 status = POWER_SUPPLY_STATUS_CHARGING;
581 break;
582 case 0x26: /* topping charge */
583 case 0x22: /* charge complete */
584 status = POWER_SUPPLY_STATUS_FULL;
585 break;
586 case 0x20: /* unknown */
587 status = POWER_SUPPLY_STATUS_UNKNOWN;
588 break;
589 /*
590 * 0x01...0x1F = reserved (not charging)
591 * 0x23 = charging error
592 * 0x27..0xff = reserved
593 */
594 default:
595 status = POWER_SUPPLY_STATUS_NOT_CHARGING;
596 break;
597 }
598
599 return status;
600}
601
602static int hidpp10_query_battery_status(struct hidpp_device *hidpp)
603{
604 struct hidpp_report response;
605 int ret, status;
606
607 ret = hidpp_send_rap_command_sync(hidpp,
608 REPORT_ID_HIDPP_SHORT,
609 HIDPP_GET_REGISTER,
610 HIDPP_REG_BATTERY_STATUS,
611 NULL, 0, &response);
612 if (ret)
613 return ret;
614
615 hidpp->battery.level =
616 hidpp10_battery_status_map_level(response.rap.params[0]);
617 status = hidpp10_battery_status_map_status(response.rap.params[1]);
618 hidpp->battery.status = status;
619 /* the capacity is only available when discharging or full */
620 hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
621 status == POWER_SUPPLY_STATUS_FULL;
622
623 return 0;
624}
625
626#define HIDPP_REG_BATTERY_MILEAGE 0x0D
627
628static int hidpp10_battery_mileage_map_status(u8 param)
629{
630 int status;
631
632 switch (param >> 6) {
633 case 0x00:
634 /* discharging (in use) */
635 status = POWER_SUPPLY_STATUS_DISCHARGING;
636 break;
637 case 0x01: /* charging */
638 status = POWER_SUPPLY_STATUS_CHARGING;
639 break;
640 case 0x02: /* charge complete */
641 status = POWER_SUPPLY_STATUS_FULL;
642 break;
643 /*
644 * 0x03 = charging error
645 */
646 default:
647 status = POWER_SUPPLY_STATUS_NOT_CHARGING;
648 break;
649 }
650
651 return status;
652}
653
654static int hidpp10_query_battery_mileage(struct hidpp_device *hidpp)
655{
656 struct hidpp_report response;
657 int ret, status;
658
659 ret = hidpp_send_rap_command_sync(hidpp,
660 REPORT_ID_HIDPP_SHORT,
661 HIDPP_GET_REGISTER,
662 HIDPP_REG_BATTERY_MILEAGE,
663 NULL, 0, &response);
664 if (ret)
665 return ret;
666
667 hidpp->battery.capacity = response.rap.params[0];
668 status = hidpp10_battery_mileage_map_status(response.rap.params[2]);
669 hidpp->battery.status = status;
670 /* the capacity is only available when discharging or full */
671 hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
672 status == POWER_SUPPLY_STATUS_FULL;
673
674 return 0;
675}
676
677static int hidpp10_battery_event(struct hidpp_device *hidpp, u8 *data, int size)
678{
679 struct hidpp_report *report = (struct hidpp_report *)data;
680 int status, capacity, level;
681 bool changed;
682
683 if (report->report_id != REPORT_ID_HIDPP_SHORT)
684 return 0;
685
686 switch (report->rap.sub_id) {
687 case HIDPP_REG_BATTERY_STATUS:
688 capacity = hidpp->battery.capacity;
689 level = hidpp10_battery_status_map_level(report->rawbytes[1]);
690 status = hidpp10_battery_status_map_status(report->rawbytes[2]);
691 break;
692 case HIDPP_REG_BATTERY_MILEAGE:
693 capacity = report->rap.params[0];
694 level = hidpp->battery.level;
695 status = hidpp10_battery_mileage_map_status(report->rawbytes[3]);
696 break;
697 default:
698 return 0;
699 }
700
701 changed = capacity != hidpp->battery.capacity ||
702 level != hidpp->battery.level ||
703 status != hidpp->battery.status;
704
705 /* the capacity is only available when discharging or full */
706 hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
707 status == POWER_SUPPLY_STATUS_FULL;
708
709 if (changed) {
710 hidpp->battery.level = level;
711 hidpp->battery.status = status;
712 if (hidpp->battery.ps)
713 power_supply_changed(hidpp->battery.ps);
714 }
715
716 return 0;
717}
718
33797820 719#define HIDPP_REG_PAIRING_INFORMATION 0xB5
843c624e
BT		 720#define HIDPP_EXTENDED_PAIRING 0x30
721#define HIDPP_DEVICE_NAME 0x40
33797820 722
843c624e 723static char *hidpp_unifying_get_name(struct hidpp_device *hidpp_dev)
33797820
BT		 724{
725 struct hidpp_report response;
726 int ret;
843c624e 727 u8 params[1] = { HIDPP_DEVICE_NAME };
33797820
BT		 728 char *name;
729 int len;
730
731 ret = hidpp_send_rap_command_sync(hidpp_dev,
732 REPORT_ID_HIDPP_SHORT,
733 HIDPP_GET_LONG_REGISTER,
734 HIDPP_REG_PAIRING_INFORMATION,
735 params, 1, &response);
736 if (ret)
737 return NULL;
738
739 len = response.rap.params[1];
740
3a034a7a
PW		 741 if (2 + len > sizeof(response.rap.params))
742 return NULL;
743
33797820
BT		 744 name = kzalloc(len + 1, GFP_KERNEL);
745 if (!name)
746 return NULL;
747
748 memcpy(name, &response.rap.params[2], len);
a0e625f8
BT		 749
750 /* include the terminating '\0' */
751 hidpp_prefix_name(&name, len + 1);
752
33797820
BT		 753 return name;
754}
755
843c624e
BT		 756static int hidpp_unifying_get_serial(struct hidpp_device *hidpp, u32 *serial)
757{
758 struct hidpp_report response;
759 int ret;
760 u8 params[1] = { HIDPP_EXTENDED_PAIRING };
761
762 ret = hidpp_send_rap_command_sync(hidpp,
763 REPORT_ID_HIDPP_SHORT,
764 HIDPP_GET_LONG_REGISTER,
765 HIDPP_REG_PAIRING_INFORMATION,
766 params, 1, &response);
767 if (ret)
768 return ret;
769
770 /*
771 * We don't care about LE or BE, we will output it as a string
772 * with %4phD, so we need to keep the order.
773 */
774 *serial = *((u32 *)&response.rap.params[1]);
775 return 0;
776}
777
778static int hidpp_unifying_init(struct hidpp_device *hidpp)
779{
780 struct hid_device *hdev = hidpp->hid_dev;
781 const char *name;
782 u32 serial;
783 int ret;
784
785 ret = hidpp_unifying_get_serial(hidpp, &serial);
786 if (ret)
787 return ret;
788
789 snprintf(hdev->uniq, sizeof(hdev->uniq), "%04x-%4phD",
790 hdev->product, &serial);
791 dbg_hid("HID++ Unifying: Got serial: %s\n", hdev->uniq);
792
793 name = hidpp_unifying_get_name(hidpp);
794 if (!name)
795 return -EIO;
796
797 snprintf(hdev->name, sizeof(hdev->name), "%s", name);
798 dbg_hid("HID++ Unifying: Got name: %s\n", name);
799
800 kfree(name);
801 return 0;
802}
803
2f31c525
BT		 804/* -------------------------------------------------------------------------- */
805/* 0x0000: Root */
806/* -------------------------------------------------------------------------- */
807
808#define HIDPP_PAGE_ROOT 0x0000
809#define HIDPP_PAGE_ROOT_IDX 0x00
810
811#define CMD_ROOT_GET_FEATURE 0x01
812#define CMD_ROOT_GET_PROTOCOL_VERSION 0x11
813
814static int hidpp_root_get_feature(struct hidpp_device *hidpp, u16 feature,
815 u8 *feature_index, u8 *feature_type)
816{
817 struct hidpp_report response;
818 int ret;
819 u8 params[2] = { feature >> 8, feature & 0x00FF };
820
821 ret = hidpp_send_fap_command_sync(hidpp,
822 HIDPP_PAGE_ROOT_IDX,
823 CMD_ROOT_GET_FEATURE,
824 params, 2, &response);
825 if (ret)
826 return ret;
827
a9525b80
BT		 828 if (response.fap.params[0] == 0)
829 return -ENOENT;
830
2f31c525
BT		 831 *feature_index = response.fap.params[0];
832 *feature_type = response.fap.params[1];
833
834 return ret;
835}
836
837static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp)
838{
839 struct hidpp_report response;
840 int ret;
841
842 ret = hidpp_send_fap_command_sync(hidpp,
843 HIDPP_PAGE_ROOT_IDX,
844 CMD_ROOT_GET_PROTOCOL_VERSION,
845 NULL, 0, &response);
846
552f12eb 847 if (ret == HIDPP_ERROR_INVALID_SUBID) {
2f31c525
BT		 848 hidpp->protocol_major = 1;
849 hidpp->protocol_minor = 0;
9576af6a 850 goto print_version;
2f31c525
BT		 851 }
852
552f12eb
BT		 853 /* the device might not be connected */
854 if (ret == HIDPP_ERROR_RESOURCE_ERROR)
855 return -EIO;
856
8c9952b2
BT		 857 if (ret > 0) {
858 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
859 __func__, ret);
860 return -EPROTO;
861 }
2f31c525 862 if (ret)
8c9952b2 863 return ret;
2f31c525
BT		 864
865 hidpp->protocol_major = response.fap.params[0];
866 hidpp->protocol_minor = response.fap.params[1];
867
9576af6a
HG		 868print_version:
869 hid_info(hidpp->hid_dev, "HID++ %u.%u device connected.\n",
870 hidpp->protocol_major, hidpp->protocol_minor);
871 return 0;
2f31c525
BT		 872}
873
2f31c525
BT		 874/* -------------------------------------------------------------------------- */
875/* 0x0005: GetDeviceNameType */
876/* -------------------------------------------------------------------------- */
877
878#define HIDPP_PAGE_GET_DEVICE_NAME_TYPE 0x0005
879
880#define CMD_GET_DEVICE_NAME_TYPE_GET_COUNT 0x01
881#define CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME 0x11
882#define CMD_GET_DEVICE_NAME_TYPE_GET_TYPE 0x21
883
884static int hidpp_devicenametype_get_count(struct hidpp_device *hidpp,
885 u8 feature_index, u8 *nameLength)
886{
887 struct hidpp_report response;
888 int ret;
889
890 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
891 CMD_GET_DEVICE_NAME_TYPE_GET_COUNT, NULL, 0, &response);
892
8c9952b2
BT		 893 if (ret > 0) {
894 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
895 __func__, ret);
896 return -EPROTO;
897 }
2f31c525 898 if (ret)
8c9952b2 899 return ret;
2f31c525
BT		 900
901 *nameLength = response.fap.params[0];
902
903 return ret;
904}
905
906static int hidpp_devicenametype_get_device_name(struct hidpp_device *hidpp,
907 u8 feature_index, u8 char_index, char *device_name, int len_buf)
908{
909 struct hidpp_report response;
910 int ret, i;
911 int count;
912
913 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
914 CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME, &char_index, 1,
915 &response);
916
8c9952b2
BT		 917 if (ret > 0) {
918 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
919 __func__, ret);
920 return -EPROTO;
921 }
2f31c525 922 if (ret)
8c9952b2 923 return ret;
2f31c525 924
a5ce8f5b
SW		 925 switch (response.report_id) {
926 case REPORT_ID_HIDPP_VERY_LONG:
927 count = HIDPP_REPORT_VERY_LONG_LENGTH - 4;
928 break;
929 case REPORT_ID_HIDPP_LONG:
2f31c525 930 count = HIDPP_REPORT_LONG_LENGTH - 4;
a5ce8f5b
SW		 931 break;
932 case REPORT_ID_HIDPP_SHORT:
2f31c525 933 count = HIDPP_REPORT_SHORT_LENGTH - 4;
a5ce8f5b
SW		 934 break;
935 default:
936 return -EPROTO;
937 }
2f31c525
BT		 938
939 if (len_buf < count)
940 count = len_buf;
941
942 for (i = 0; i < count; i++)
943 device_name[i] = response.fap.params[i];
944
945 return count;
946}
947
02cc097e 948static char *hidpp_get_device_name(struct hidpp_device *hidpp)
2f31c525
BT		 949{
950 u8 feature_type;
951 u8 feature_index;
952 u8 __name_length;
953 char *name;
954 unsigned index = 0;
955 int ret;
956
957 ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_GET_DEVICE_NAME_TYPE,
958 &feature_index, &feature_type);
959 if (ret)
02cc097e 960 return NULL;
2f31c525
BT		 961
962 ret = hidpp_devicenametype_get_count(hidpp, feature_index,
963 &__name_length);
964 if (ret)
02cc097e 965 return NULL;
2f31c525
BT		 966
967 name = kzalloc(__name_length + 1, GFP_KERNEL);
968 if (!name)
02cc097e 969 return NULL;
2f31c525 970
1430ee73
PW		 971 while (index < __name_length) {
972 ret = hidpp_devicenametype_get_device_name(hidpp,
2f31c525
BT		 973 feature_index, index, name + index,
974 __name_length - index);
1430ee73
PW		 975 if (ret <= 0) {
976 kfree(name);
977 return NULL;
978 }
979 index += ret;
980 }
2f31c525 981
a0e625f8
BT		 982 /* include the terminating '\0' */
983 hidpp_prefix_name(&name, __name_length + 1);
984
2f31c525 985 return name;
2f31c525
BT		 986}
987
5a2b190c
PH		 988/* -------------------------------------------------------------------------- */
989/* 0x1000: Battery level status */
990/* -------------------------------------------------------------------------- */
991
992#define HIDPP_PAGE_BATTERY_LEVEL_STATUS 0x1000
993
994#define CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_LEVEL_STATUS 0x00
995#define CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_CAPABILITY 0x10
996
997#define EVENT_BATTERY_LEVEL_STATUS_BROADCAST 0x00
998
5b036ea1
BT		 999#define FLAG_BATTERY_LEVEL_DISABLE_OSD BIT(0)
1000#define FLAG_BATTERY_LEVEL_MILEAGE BIT(1)
1001#define FLAG_BATTERY_LEVEL_RECHARGEABLE BIT(2)
1002
1003static int hidpp_map_battery_level(int capacity)
1004{
1005 if (capacity < 11)
1006 return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
1f87b0cd
HG		 1007 /*
1008 * The spec says this should be < 31 but some devices report 30
1009 * with brand new batteries and Windows reports 30 as "Good".
1010 */
1011 else if (capacity < 30)
5b036ea1
BT		 1012 return POWER_SUPPLY_CAPACITY_LEVEL_LOW;
1013 else if (capacity < 81)
1014 return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
1015 return POWER_SUPPLY_CAPACITY_LEVEL_FULL;
1016}
1017
14f437a1 1018static int hidpp20_batterylevel_map_status_capacity(u8 data[3], int *capacity,
5b036ea1
BT		 1019 int *next_capacity,
1020 int *level)
5a2b190c
PH		 1021{
1022 int status;
5a2b190c 1023
14f437a1
BT		 1024 *capacity = data[0];
1025 *next_capacity = data[1];
5b036ea1 1026 *level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
5a2b190c 1027
14f437a1
BT		 1028 /* When discharging, we can rely on the device reported capacity.
1029 * For all other states the device reports 0 (unknown).
5a2b190c
PH		 1030 */
1031 switch (data[2]) {
1032 case 0: /* discharging (in use) */
1033 status = POWER_SUPPLY_STATUS_DISCHARGING;
5b036ea1 1034 *level = hidpp_map_battery_level(*capacity);
5a2b190c
PH		 1035 break;
1036 case 1: /* recharging */
1037 status = POWER_SUPPLY_STATUS_CHARGING;
5a2b190c
PH		 1038 break;
1039 case 2: /* charge in final stage */
1040 status = POWER_SUPPLY_STATUS_CHARGING;
5a2b190c
PH		 1041 break;
1042 case 3: /* charge complete */
1043 status = POWER_SUPPLY_STATUS_FULL;
5b036ea1 1044 *level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
14f437a1 1045 *capacity = 100;
5a2b190c
PH		 1046 break;
1047 case 4: /* recharging below optimal speed */
1048 status = POWER_SUPPLY_STATUS_CHARGING;
5a2b190c
PH		 1049 break;
1050 /* 5 = invalid battery type
1051 6 = thermal error
1052 7 = other charging error */
1053 default:
1054 status = POWER_SUPPLY_STATUS_NOT_CHARGING;
5a2b190c
PH		 1055 break;
1056 }
1057
5a2b190c
PH		 1058 return status;
1059}
1060
14f437a1
BT		 1061static int hidpp20_batterylevel_get_battery_capacity(struct hidpp_device *hidpp,
1062 u8 feature_index,
1063 int *status,
1064 int *capacity,
5b036ea1
BT		 1065 int *next_capacity,
1066 int *level)
5a2b190c
PH		 1067{
1068 struct hidpp_report response;
1069 int ret;
1070 u8 *params = (u8 *)response.fap.params;
1071
1072 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
1073 CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_LEVEL_STATUS,
1074 NULL, 0, &response);
1075 if (ret > 0) {
1076 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
1077 __func__, ret);
1078 return -EPROTO;
1079 }
1080 if (ret)
1081 return ret;
1082
14f437a1 1083 *status = hidpp20_batterylevel_map_status_capacity(params, capacity,
5b036ea1
BT		 1084 next_capacity,
1085 level);
1086
1087 return 0;
1088}
1089
1090static int hidpp20_batterylevel_get_battery_info(struct hidpp_device *hidpp,
1091 u8 feature_index)
1092{
1093 struct hidpp_report response;
1094 int ret;
1095 u8 *params = (u8 *)response.fap.params;
1096 unsigned int level_count, flags;
1097
1098 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
1099 CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_CAPABILITY,
1100 NULL, 0, &response);
1101 if (ret > 0) {
1102 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
1103 __func__, ret);
1104 return -EPROTO;
1105 }
1106 if (ret)
1107 return ret;
1108
1109 level_count = params[0];
1110 flags = params[1];
1111
1112 if (level_count < 10 || !(flags & FLAG_BATTERY_LEVEL_MILEAGE))
1113 hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS;
1114 else
1115 hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_MILEAGE;
5a2b190c
PH		 1116
1117 return 0;
1118}
1119
1120static int hidpp20_query_battery_info(struct hidpp_device *hidpp)
1121{
1122 u8 feature_type;
1123 int ret;
5b036ea1 1124 int status, capacity, next_capacity, level;
5a2b190c 1125
696ecef9 1126 if (hidpp->battery.feature_index == 0xff) {
5a2b190c
PH		 1127 ret = hidpp_root_get_feature(hidpp,
1128 HIDPP_PAGE_BATTERY_LEVEL_STATUS,
1129 &hidpp->battery.feature_index,
1130 &feature_type);
1131 if (ret)
1132 return ret;
1133 }
1134
14f437a1
BT		 1135 ret = hidpp20_batterylevel_get_battery_capacity(hidpp,
1136 hidpp->battery.feature_index,
1137 &status, &capacity,
5b036ea1
BT		 1138 &next_capacity, &level);
1139 if (ret)
1140 return ret;
1141
1142 ret = hidpp20_batterylevel_get_battery_info(hidpp,
1143 hidpp->battery.feature_index);
5a2b190c
PH		 1144 if (ret)
1145 return ret;
1146
1147 hidpp->battery.status = status;
14f437a1 1148 hidpp->battery.capacity = capacity;
5b036ea1 1149 hidpp->battery.level = level;
284f8d75
BT		 1150 /* the capacity is only available when discharging or full */
1151 hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
1152 status == POWER_SUPPLY_STATUS_FULL;
5a2b190c
PH		 1153
1154 return 0;
1155}
1156
1157static int hidpp20_battery_event(struct hidpp_device *hidpp,
1158 u8 *data, int size)
1159{
1160 struct hidpp_report *report = (struct hidpp_report *)data;
5b036ea1 1161 int status, capacity, next_capacity, level;
5a2b190c
PH		 1162 bool changed;
1163
1164 if (report->fap.feature_index != hidpp->battery.feature_index ||
1165 report->fap.funcindex_clientid != EVENT_BATTERY_LEVEL_STATUS_BROADCAST)
1166 return 0;
1167
14f437a1
BT		 1168 status = hidpp20_batterylevel_map_status_capacity(report->fap.params,
1169 &capacity,
5b036ea1
BT		 1170 &next_capacity,
1171 &level);
5a2b190c 1172
284f8d75
BT		 1173 /* the capacity is only available when discharging or full */
1174 hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
1175 status == POWER_SUPPLY_STATUS_FULL;
1176
14f437a1 1177 changed = capacity != hidpp->battery.capacity ||
5b036ea1 1178 level != hidpp->battery.level ||
5a2b190c
PH		 1179 status != hidpp->battery.status;
1180
1181 if (changed) {
5b036ea1 1182 hidpp->battery.level = level;
14f437a1 1183 hidpp->battery.capacity = capacity;
5a2b190c
PH		 1184 hidpp->battery.status = status;
1185 if (hidpp->battery.ps)
1186 power_supply_changed(hidpp->battery.ps);
1187 }
1188
1189 return 0;
1190}
1191
1192static enum power_supply_property hidpp_battery_props[] = {
284f8d75 1193 POWER_SUPPLY_PROP_ONLINE,
5a2b190c 1194 POWER_SUPPLY_PROP_STATUS,
3861e6ca 1195 POWER_SUPPLY_PROP_SCOPE,
32043d0f
BT		 1196 POWER_SUPPLY_PROP_MODEL_NAME,
1197 POWER_SUPPLY_PROP_MANUFACTURER,
1198 POWER_SUPPLY_PROP_SERIAL_NUMBER,
5b036ea1
BT		 1199 0, /* placeholder for POWER_SUPPLY_PROP_CAPACITY, */
1200 0, /* placeholder for POWER_SUPPLY_PROP_CAPACITY_LEVEL, */
5a2b190c
PH		 1201};
1202
1203static int hidpp_battery_get_property(struct power_supply *psy,
1204 enum power_supply_property psp,
1205 union power_supply_propval *val)
1206{
1207 struct hidpp_device *hidpp = power_supply_get_drvdata(psy);
1208 int ret = 0;
1209
1210 switch(psp) {
1211 case POWER_SUPPLY_PROP_STATUS:
1212 val->intval = hidpp->battery.status;
1213 break;
1214 case POWER_SUPPLY_PROP_CAPACITY:
14f437a1 1215 val->intval = hidpp->battery.capacity;
5a2b190c 1216 break;
5b036ea1
BT		 1217 case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
1218 val->intval = hidpp->battery.level;
1219 break;
3861e6ca
BN		 1220 case POWER_SUPPLY_PROP_SCOPE:
1221 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
1222 break;
284f8d75
BT		 1223 case POWER_SUPPLY_PROP_ONLINE:
1224 val->intval = hidpp->battery.online;
1225 break;
32043d0f
BT		 1226 case POWER_SUPPLY_PROP_MODEL_NAME:
1227 if (!strncmp(hidpp->name, "Logitech ", 9))
1228 val->strval = hidpp->name + 9;
1229 else
1230 val->strval = hidpp->name;
1231 break;
1232 case POWER_SUPPLY_PROP_MANUFACTURER:
1233 val->strval = "Logitech";
1234 break;
1235 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
1236 val->strval = hidpp->hid_dev->uniq;
1237 break;
5a2b190c
PH		 1238 default:
1239 ret = -EINVAL;
1240 break;
1241 }
1242
1243 return ret;
1244}
1245
4435ff2f
HC		 1246/* -------------------------------------------------------------------------- */
1247/* 0x2120: Hi-resolution scrolling */
1248/* -------------------------------------------------------------------------- */
1249
1250#define HIDPP_PAGE_HI_RESOLUTION_SCROLLING 0x2120
1251
1252#define CMD_HI_RESOLUTION_SCROLLING_SET_HIGHRES_SCROLLING_MODE 0x10
1253
1254static int hidpp_hrs_set_highres_scrolling_mode(struct hidpp_device *hidpp,
1255 bool enabled, u8 *multiplier)
1256{
1257 u8 feature_index;
1258 u8 feature_type;
1259 int ret;
1260 u8 params[1];
1261 struct hidpp_report response;
1262
1263 ret = hidpp_root_get_feature(hidpp,
1264 HIDPP_PAGE_HI_RESOLUTION_SCROLLING,
1265 &feature_index,
1266 &feature_type);
1267 if (ret)
1268 return ret;
1269
1270 params[0] = enabled ? BIT(0) : 0;
1271 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
1272 CMD_HI_RESOLUTION_SCROLLING_SET_HIGHRES_SCROLLING_MODE,
1273 params, sizeof(params), &response);
1274 if (ret)
1275 return ret;
1276 *multiplier = response.fap.params[1];
1277 return 0;
1278}
1279
1280/* -------------------------------------------------------------------------- */
1281/* 0x2121: HiRes Wheel */
1282/* -------------------------------------------------------------------------- */
1283
1284#define HIDPP_PAGE_HIRES_WHEEL 0x2121
1285
1286#define CMD_HIRES_WHEEL_GET_WHEEL_CAPABILITY 0x00
1287#define CMD_HIRES_WHEEL_SET_WHEEL_MODE 0x20
1288
1289static int hidpp_hrw_get_wheel_capability(struct hidpp_device *hidpp,
1290 u8 *multiplier)
1291{
1292 u8 feature_index;
1293 u8 feature_type;
1294 int ret;
1295 struct hidpp_report response;
1296
1297 ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_HIRES_WHEEL,
1298 &feature_index, &feature_type);
1299 if (ret)
1300 goto return_default;
1301
1302 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
1303 CMD_HIRES_WHEEL_GET_WHEEL_CAPABILITY,
1304 NULL, 0, &response);
1305 if (ret)
1306 goto return_default;
1307
1308 *multiplier = response.fap.params[0];
1309 return 0;
1310return_default:
1311 hid_warn(hidpp->hid_dev,
1312 "Couldn't get wheel multiplier (error %d)\n", ret);
1313 return ret;
1314}
1315
1316static int hidpp_hrw_set_wheel_mode(struct hidpp_device *hidpp, bool invert,
1317 bool high_resolution, bool use_hidpp)
1318{
1319 u8 feature_index;
1320 u8 feature_type;
1321 int ret;
1322 u8 params[1];
1323 struct hidpp_report response;
1324
1325 ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_HIRES_WHEEL,
1326 &feature_index, &feature_type);
1327 if (ret)
1328 return ret;
1329
1330 params[0] = (invert ? BIT(2) : 0) |
1331 (high_resolution ? BIT(1) : 0) |
1332 (use_hidpp ? BIT(0) : 0);
1333
1334 return hidpp_send_fap_command_sync(hidpp, feature_index,
1335 CMD_HIRES_WHEEL_SET_WHEEL_MODE,
1336 params, sizeof(params), &response);
1337}
1338
696ecef9
BT		 1339/* -------------------------------------------------------------------------- */
1340/* 0x4301: Solar Keyboard */
1341/* -------------------------------------------------------------------------- */
1342
1343#define HIDPP_PAGE_SOLAR_KEYBOARD 0x4301
1344
1345#define CMD_SOLAR_SET_LIGHT_MEASURE 0x00
1346
1347#define EVENT_SOLAR_BATTERY_BROADCAST 0x00
1348#define EVENT_SOLAR_BATTERY_LIGHT_MEASURE 0x10
1349#define EVENT_SOLAR_CHECK_LIGHT_BUTTON 0x20
1350
1351static int hidpp_solar_request_battery_event(struct hidpp_device *hidpp)
1352{
1353 struct hidpp_report response;
1354 u8 params[2] = { 1, 1 };
1355 u8 feature_type;
1356 int ret;
1357
1358 if (hidpp->battery.feature_index == 0xff) {
1359 ret = hidpp_root_get_feature(hidpp,
1360 HIDPP_PAGE_SOLAR_KEYBOARD,
1361 &hidpp->battery.solar_feature_index,
1362 &feature_type);
1363 if (ret)
1364 return ret;
1365 }
1366
1367 ret = hidpp_send_fap_command_sync(hidpp,
1368 hidpp->battery.solar_feature_index,
1369 CMD_SOLAR_SET_LIGHT_MEASURE,
1370 params, 2, &response);
1371 if (ret > 0) {
1372 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
1373 __func__, ret);
1374 return -EPROTO;
1375 }
1376 if (ret)
1377 return ret;
1378
1379 hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_MILEAGE;
1380
1381 return 0;
1382}
1383
1384static int hidpp_solar_battery_event(struct hidpp_device *hidpp,
1385 u8 *data, int size)
1386{
1387 struct hidpp_report *report = (struct hidpp_report *)data;
1388 int capacity, lux, status;
1389 u8 function;
1390
1391 function = report->fap.funcindex_clientid;
1392
1393
1394 if (report->fap.feature_index != hidpp->battery.solar_feature_index ||
1395 !(function == EVENT_SOLAR_BATTERY_BROADCAST ||
1396 function == EVENT_SOLAR_BATTERY_LIGHT_MEASURE ||
1397 function == EVENT_SOLAR_CHECK_LIGHT_BUTTON))
1398 return 0;
1399
1400 capacity = report->fap.params[0];
1401
1402 switch (function) {
1403 case EVENT_SOLAR_BATTERY_LIGHT_MEASURE:
1404 lux = (report->fap.params[1] << 8) | report->fap.params[2];
1405 if (lux > 200)
1406 status = POWER_SUPPLY_STATUS_CHARGING;
1407 else
1408 status = POWER_SUPPLY_STATUS_DISCHARGING;
1409 break;
1410 case EVENT_SOLAR_CHECK_LIGHT_BUTTON:
1411 default:
1412 if (capacity < hidpp->battery.capacity)
1413 status = POWER_SUPPLY_STATUS_DISCHARGING;
1414 else
1415 status = POWER_SUPPLY_STATUS_CHARGING;
1416
1417 }
1418
1419 if (capacity == 100)
1420 status = POWER_SUPPLY_STATUS_FULL;
1421
1422 hidpp->battery.online = true;
1423 if (capacity != hidpp->battery.capacity ||
1424 status != hidpp->battery.status) {
1425 hidpp->battery.capacity = capacity;
1426 hidpp->battery.status = status;
1427 if (hidpp->battery.ps)
1428 power_supply_changed(hidpp->battery.ps);
1429 }
1430
1431 return 0;
1432}
1433
90cdd986
BT		 1434/* -------------------------------------------------------------------------- */
1435/* 0x6010: Touchpad FW items */
1436/* -------------------------------------------------------------------------- */
1437
1438#define HIDPP_PAGE_TOUCHPAD_FW_ITEMS 0x6010
1439
1440#define CMD_TOUCHPAD_FW_ITEMS_SET 0x10
1441
1442struct hidpp_touchpad_fw_items {
1443 uint8_t presence;
1444 uint8_t desired_state;
1445 uint8_t state;
1446 uint8_t persistent;
1447};
1448
1449/**
1450 * send a set state command to the device by reading the current items->state
1451 * field. items is then filled with the current state.
1452 */
1453static int hidpp_touchpad_fw_items_set(struct hidpp_device *hidpp,
1454 u8 feature_index,
1455 struct hidpp_touchpad_fw_items *items)
1456{
1457 struct hidpp_report response;
1458 int ret;
1459 u8 *params = (u8 *)response.fap.params;
1460
1461 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
1462 CMD_TOUCHPAD_FW_ITEMS_SET, &items->state, 1, &response);
1463
1464 if (ret > 0) {
1465 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
1466 __func__, ret);
1467 return -EPROTO;
1468 }
1469 if (ret)
1470 return ret;
1471
1472 items->presence = params[0];
1473 items->desired_state = params[1];
1474 items->state = params[2];
1475 items->persistent = params[3];
1476
1477 return 0;
1478}
1479
2f31c525
BT		 1480/* -------------------------------------------------------------------------- */
1481/* 0x6100: TouchPadRawXY */
1482/* -------------------------------------------------------------------------- */
1483
1484#define HIDPP_PAGE_TOUCHPAD_RAW_XY 0x6100
1485
1486#define CMD_TOUCHPAD_GET_RAW_INFO 0x01
586bdc4e
BT		 1487#define CMD_TOUCHPAD_SET_RAW_REPORT_STATE 0x21
1488
1489#define EVENT_TOUCHPAD_RAW_XY 0x00
2f31c525
BT		 1490
1491#define TOUCHPAD_RAW_XY_ORIGIN_LOWER_LEFT 0x01
1492#define TOUCHPAD_RAW_XY_ORIGIN_UPPER_LEFT 0x03
1493
1494struct hidpp_touchpad_raw_info {
1495 u16 x_size;
1496 u16 y_size;
1497 u8 z_range;
1498 u8 area_range;
1499 u8 timestamp_unit;
1500 u8 maxcontacts;
1501 u8 origin;
1502 u16 res;
1503};
1504
1505struct hidpp_touchpad_raw_xy_finger {
1506 u8 contact_type;
1507 u8 contact_status;
1508 u16 x;
1509 u16 y;
1510 u8 z;
1511 u8 area;
1512 u8 finger_id;
1513};
1514
1515struct hidpp_touchpad_raw_xy {
1516 u16 timestamp;
1517 struct hidpp_touchpad_raw_xy_finger fingers[2];
1518 u8 spurious_flag;
1519 u8 end_of_frame;
1520 u8 finger_count;
1521 u8 button;
1522};
1523
1524static int hidpp_touchpad_get_raw_info(struct hidpp_device *hidpp,
1525 u8 feature_index, struct hidpp_touchpad_raw_info *raw_info)
1526{
1527 struct hidpp_report response;
1528 int ret;
1529 u8 *params = (u8 *)response.fap.params;
1530
1531 ret = hidpp_send_fap_command_sync(hidpp, feature_index,
1532 CMD_TOUCHPAD_GET_RAW_INFO, NULL, 0, &response);
1533
8c9952b2
BT		 1534 if (ret > 0) {
1535 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
1536 __func__, ret);
1537 return -EPROTO;
1538 }
2f31c525 1539 if (ret)
8c9952b2 1540 return ret;
2f31c525
BT		 1541
1542 raw_info->x_size = get_unaligned_be16(&params[0]);
1543 raw_info->y_size = get_unaligned_be16(&params[2]);
1544 raw_info->z_range = params[4];
1545 raw_info->area_range = params[5];
1546 raw_info->maxcontacts = params[7];
1547 raw_info->origin = params[8];
1548 /* res is given in unit per inch */
1549 raw_info->res = get_unaligned_be16(&params[13]) * 2 / 51;
1550
1551 return ret;
1552}
1553
586bdc4e
BT		 1554static int hidpp_touchpad_set_raw_report_state(struct hidpp_device *hidpp_dev,
1555 u8 feature_index, bool send_raw_reports,
1556 bool sensor_enhanced_settings)
1557{
1558 struct hidpp_report response;
1559
1560 /*
1561 * Params:
1562 * bit 0 - enable raw
1563 * bit 1 - 16bit Z, no area
1564 * bit 2 - enhanced sensitivity
1565 * bit 3 - width, height (4 bits each) instead of area
1566 * bit 4 - send raw + gestures (degrades smoothness)
1567 * remaining bits - reserved
1568 */
1569 u8 params = send_raw_reports | (sensor_enhanced_settings << 2);
1570
1571 return hidpp_send_fap_command_sync(hidpp_dev, feature_index,
1572 CMD_TOUCHPAD_SET_RAW_REPORT_STATE, &params, 1, &response);
1573}
1574
1575static void hidpp_touchpad_touch_event(u8 *data,
1576 struct hidpp_touchpad_raw_xy_finger *finger)
1577{
1578 u8 x_m = data[0] << 2;
1579 u8 y_m = data[2] << 2;
1580
1581 finger->x = x_m << 6 | data[1];
1582 finger->y = y_m << 6 | data[3];
1583
1584 finger->contact_type = data[0] >> 6;
1585 finger->contact_status = data[2] >> 6;
1586
1587 finger->z = data[4];
1588 finger->area = data[5];
1589 finger->finger_id = data[6] >> 4;
1590}
1591
1592static void hidpp_touchpad_raw_xy_event(struct hidpp_device *hidpp_dev,
1593 u8 *data, struct hidpp_touchpad_raw_xy *raw_xy)
1594{
1595 memset(raw_xy, 0, sizeof(struct hidpp_touchpad_raw_xy));
1596 raw_xy->end_of_frame = data[8] & 0x01;
1597 raw_xy->spurious_flag = (data[8] >> 1) & 0x01;
1598 raw_xy->finger_count = data[15] & 0x0f;
1599 raw_xy->button = (data[8] >> 2) & 0x01;
1600
1601 if (raw_xy->finger_count) {
1602 hidpp_touchpad_touch_event(&data[2], &raw_xy->fingers[0]);
1603 hidpp_touchpad_touch_event(&data[9], &raw_xy->fingers[1]);
1604 }
1605}
1606
ff21a635
EV		 1607/* -------------------------------------------------------------------------- */
1608/* 0x8123: Force feedback support */
1609/* -------------------------------------------------------------------------- */
1610
1611#define HIDPP_FF_GET_INFO 0x01
1612#define HIDPP_FF_RESET_ALL 0x11
1613#define HIDPP_FF_DOWNLOAD_EFFECT 0x21
1614#define HIDPP_FF_SET_EFFECT_STATE 0x31
1615#define HIDPP_FF_DESTROY_EFFECT 0x41
1616#define HIDPP_FF_GET_APERTURE 0x51
1617#define HIDPP_FF_SET_APERTURE 0x61
1618#define HIDPP_FF_GET_GLOBAL_GAINS 0x71
1619#define HIDPP_FF_SET_GLOBAL_GAINS 0x81
1620
1621#define HIDPP_FF_EFFECT_STATE_GET 0x00
1622#define HIDPP_FF_EFFECT_STATE_STOP 0x01
1623#define HIDPP_FF_EFFECT_STATE_PLAY 0x02
1624#define HIDPP_FF_EFFECT_STATE_PAUSE 0x03
1625
1626#define HIDPP_FF_EFFECT_CONSTANT 0x00
1627#define HIDPP_FF_EFFECT_PERIODIC_SINE 0x01
1628#define HIDPP_FF_EFFECT_PERIODIC_SQUARE 0x02
1629#define HIDPP_FF_EFFECT_PERIODIC_TRIANGLE 0x03
1630#define HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHUP 0x04
1631#define HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHDOWN 0x05
1632#define HIDPP_FF_EFFECT_SPRING 0x06
1633#define HIDPP_FF_EFFECT_DAMPER 0x07
1634#define HIDPP_FF_EFFECT_FRICTION 0x08
1635#define HIDPP_FF_EFFECT_INERTIA 0x09
1636#define HIDPP_FF_EFFECT_RAMP 0x0A
1637
1638#define HIDPP_FF_EFFECT_AUTOSTART 0x80
1639
1640#define HIDPP_FF_EFFECTID_NONE -1
1641#define HIDPP_FF_EFFECTID_AUTOCENTER -2
1642
1643#define HIDPP_FF_MAX_PARAMS 20
1644#define HIDPP_FF_RESERVED_SLOTS 1
1645
1646struct hidpp_ff_private_data {
1647 struct hidpp_device *hidpp;
1648 u8 feature_index;
1649 u8 version;
1650 u16 gain;
1651 s16 range;
1652 u8 slot_autocenter;
1653 u8 num_effects;
1654 int *effect_ids;
1655 struct workqueue_struct *wq;
1656 atomic_t workqueue_size;
1657};
1658
1659struct hidpp_ff_work_data {
1660 struct work_struct work;
1661 struct hidpp_ff_private_data *data;
1662 int effect_id;
1663 u8 command;
1664 u8 params[HIDPP_FF_MAX_PARAMS];
1665 u8 size;
1666};
1667
fef33601 1668static const signed short hidpp_ff_effects[] = {
ff21a635
EV		 1669 FF_CONSTANT,
1670 FF_PERIODIC,
1671 FF_SINE,
1672 FF_SQUARE,
1673 FF_SAW_UP,
1674 FF_SAW_DOWN,
1675 FF_TRIANGLE,
1676 FF_SPRING,
1677 FF_DAMPER,
1678 FF_AUTOCENTER,
1679 FF_GAIN,
1680 -1
1681};
1682
fef33601 1683static const signed short hidpp_ff_effects_v2[] = {
ff21a635
EV		 1684 FF_RAMP,
1685 FF_FRICTION,
1686 FF_INERTIA,
1687 -1
1688};
1689
1690static const u8 HIDPP_FF_CONDITION_CMDS[] = {
1691 HIDPP_FF_EFFECT_SPRING,
1692 HIDPP_FF_EFFECT_FRICTION,
1693 HIDPP_FF_EFFECT_DAMPER,
1694 HIDPP_FF_EFFECT_INERTIA
1695};
1696
1697static const char *HIDPP_FF_CONDITION_NAMES[] = {
1698 "spring",
1699 "friction",
1700 "damper",
1701 "inertia"
1702};
1703
1704
1705static u8 hidpp_ff_find_effect(struct hidpp_ff_private_data *data, int effect_id)
1706{
1707 int i;
1708
1709 for (i = 0; i < data->num_effects; i++)
1710 if (data->effect_ids[i] == effect_id)
1711 return i+1;
1712
1713 return 0;
1714}
1715
1716static void hidpp_ff_work_handler(struct work_struct *w)
1717{
1718 struct hidpp_ff_work_data *wd = container_of(w, struct hidpp_ff_work_data, work);
1719 struct hidpp_ff_private_data *data = wd->data;
1720 struct hidpp_report response;
1721 u8 slot;
1722 int ret;
1723
1724 /* add slot number if needed */
1725 switch (wd->effect_id) {
1726 case HIDPP_FF_EFFECTID_AUTOCENTER:
1727 wd->params[0] = data->slot_autocenter;
1728 break;
1729 case HIDPP_FF_EFFECTID_NONE:
1730 /* leave slot as zero */
1731 break;
1732 default:
1733 /* find current slot for effect */
1734 wd->params[0] = hidpp_ff_find_effect(data, wd->effect_id);
1735 break;
1736 }
1737
1738 /* send command and wait for reply */
1739 ret = hidpp_send_fap_command_sync(data->hidpp, data->feature_index,
1740 wd->command, wd->params, wd->size, &response);
1741
1742 if (ret) {
1743 hid_err(data->hidpp->hid_dev, "Failed to send command to device!\n");
1744 goto out;
1745 }
1746
1747 /* parse return data */
1748 switch (wd->command) {
1749 case HIDPP_FF_DOWNLOAD_EFFECT:
1750 slot = response.fap.params[0];
1751 if (slot > 0 && slot <= data->num_effects) {
1752 if (wd->effect_id >= 0)
1753 /* regular effect uploaded */
1754 data->effect_ids[slot-1] = wd->effect_id;
1755 else if (wd->effect_id >= HIDPP_FF_EFFECTID_AUTOCENTER)
1756 /* autocenter spring uploaded */
1757 data->slot_autocenter = slot;
1758 }
1759 break;
1760 case HIDPP_FF_DESTROY_EFFECT:
1761 if (wd->effect_id >= 0)
1762 /* regular effect destroyed */
1763 data->effect_ids[wd->params[0]-1] = -1;
1764 else if (wd->effect_id >= HIDPP_FF_EFFECTID_AUTOCENTER)
1765 /* autocenter spring destoyed */
1766 data->slot_autocenter = 0;
1767 break;
1768 case HIDPP_FF_SET_GLOBAL_GAINS:
1769 data->gain = (wd->params[0] << 8) + wd->params[1];
1770 break;
1771 case HIDPP_FF_SET_APERTURE:
1772 data->range = (wd->params[0] << 8) + wd->params[1];
1773 break;
1774 default:
1775 /* no action needed */
1776 break;
1777 }
1778
1779out:
1780 atomic_dec(&data->workqueue_size);
1781 kfree(wd);
1782}
1783
1784static int hidpp_ff_queue_work(struct hidpp_ff_private_data *data, int effect_id, u8 command, u8 *params, u8 size)
1785{
1786 struct hidpp_ff_work_data *wd = kzalloc(sizeof(*wd), GFP_KERNEL);
1787 int s;
1788
1789 if (!wd)
1790 return -ENOMEM;
1791
1792 INIT_WORK(&wd->work, hidpp_ff_work_handler);
1793
1794 wd->data = data;
1795 wd->effect_id = effect_id;
1796 wd->command = command;
1797 wd->size = size;
1798 memcpy(wd->params, params, size);
1799
1800 atomic_inc(&data->workqueue_size);
1801 queue_work(data->wq, &wd->work);
1802
1803 /* warn about excessive queue size */
1804 s = atomic_read(&data->workqueue_size);
1805 if (s >= 20 && s % 20 == 0)
1806 hid_warn(data->hidpp->hid_dev, "Force feedback command queue contains %d commands, causing substantial delays!", s);
1807
1808 return 0;
1809}
1810
1811static int hidpp_ff_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
1812{
1813 struct hidpp_ff_private_data *data = dev->ff->private;
1814 u8 params[20];
1815 u8 size;
1816 int force;
1817
1818 /* set common parameters */
1819 params[2] = effect->replay.length >> 8;
1820 params[3] = effect->replay.length & 255;
1821 params[4] = effect->replay.delay >> 8;
1822 params[5] = effect->replay.delay & 255;
1823
1824 switch (effect->type) {
1825 case FF_CONSTANT:
1826 force = (effect->u.constant.level * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
1827 params[1] = HIDPP_FF_EFFECT_CONSTANT;
1828 params[6] = force >> 8;
1829 params[7] = force & 255;
1830 params[8] = effect->u.constant.envelope.attack_level >> 7;
1831 params[9] = effect->u.constant.envelope.attack_length >> 8;
1832 params[10] = effect->u.constant.envelope.attack_length & 255;
1833 params[11] = effect->u.constant.envelope.fade_level >> 7;
1834 params[12] = effect->u.constant.envelope.fade_length >> 8;
1835 params[13] = effect->u.constant.envelope.fade_length & 255;
1836 size = 14;
1837 dbg_hid("Uploading constant force level=%d in dir %d = %d\n",
1838 effect->u.constant.level,
1839 effect->direction, force);
1840 dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n",
1841 effect->u.constant.envelope.attack_level,
1842 effect->u.constant.envelope.attack_length,
1843 effect->u.constant.envelope.fade_level,
1844 effect->u.constant.envelope.fade_length);
1845 break;
1846 case FF_PERIODIC:
1847 {
1848 switch (effect->u.periodic.waveform) {
1849 case FF_SINE:
1850 params[1] = HIDPP_FF_EFFECT_PERIODIC_SINE;
1851 break;
1852 case FF_SQUARE:
1853 params[1] = HIDPP_FF_EFFECT_PERIODIC_SQUARE;
1854 break;
1855 case FF_SAW_UP:
1856 params[1] = HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHUP;
1857 break;
1858 case FF_SAW_DOWN:
1859 params[1] = HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHDOWN;
1860 break;
1861 case FF_TRIANGLE:
1862 params[1] = HIDPP_FF_EFFECT_PERIODIC_TRIANGLE;
1863 break;
1864 default:
1865 hid_err(data->hidpp->hid_dev, "Unexpected periodic waveform type %i!\n", effect->u.periodic.waveform);
1866 return -EINVAL;
1867 }
1868 force = (effect->u.periodic.magnitude * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
1869 params[6] = effect->u.periodic.magnitude >> 8;
1870 params[7] = effect->u.periodic.magnitude & 255;
1871 params[8] = effect->u.periodic.offset >> 8;
1872 params[9] = effect->u.periodic.offset & 255;
1873 params[10] = effect->u.periodic.period >> 8;
1874 params[11] = effect->u.periodic.period & 255;
1875 params[12] = effect->u.periodic.phase >> 8;
1876 params[13] = effect->u.periodic.phase & 255;
1877 params[14] = effect->u.periodic.envelope.attack_level >> 7;
1878 params[15] = effect->u.periodic.envelope.attack_length >> 8;
1879 params[16] = effect->u.periodic.envelope.attack_length & 255;
1880 params[17] = effect->u.periodic.envelope.fade_level >> 7;
1881 params[18] = effect->u.periodic.envelope.fade_length >> 8;
1882 params[19] = effect->u.periodic.envelope.fade_length & 255;
1883 size = 20;
1884 dbg_hid("Uploading periodic force mag=%d/dir=%d, offset=%d, period=%d ms, phase=%d\n",
1885 effect->u.periodic.magnitude, effect->direction,
1886 effect->u.periodic.offset,
1887 effect->u.periodic.period,
1888 effect->u.periodic.phase);
1889 dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n",
1890 effect->u.periodic.envelope.attack_level,
1891 effect->u.periodic.envelope.attack_length,
1892 effect->u.periodic.envelope.fade_level,
1893 effect->u.periodic.envelope.fade_length);
1894 break;
1895 }
1896 case FF_RAMP:
1897 params[1] = HIDPP_FF_EFFECT_RAMP;
1898 force = (effect->u.ramp.start_level * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
1899 params[6] = force >> 8;
1900 params[7] = force & 255;
1901 force = (effect->u.ramp.end_level * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
1902 params[8] = force >> 8;
1903 params[9] = force & 255;
1904 params[10] = effect->u.ramp.envelope.attack_level >> 7;
1905 params[11] = effect->u.ramp.envelope.attack_length >> 8;
1906 params[12] = effect->u.ramp.envelope.attack_length & 255;
1907 params[13] = effect->u.ramp.envelope.fade_level >> 7;
1908 params[14] = effect->u.ramp.envelope.fade_length >> 8;
1909 params[15] = effect->u.ramp.envelope.fade_length & 255;
1910 size = 16;
1911 dbg_hid("Uploading ramp force level=%d -> %d in dir %d = %d\n",
1912 effect->u.ramp.start_level,
1913 effect->u.ramp.end_level,
1914 effect->direction, force);
1915 dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n",
1916 effect->u.ramp.envelope.attack_level,
1917 effect->u.ramp.envelope.attack_length,
1918 effect->u.ramp.envelope.fade_level,
1919 effect->u.ramp.envelope.fade_length);
1920 break;
1921 case FF_FRICTION:
1922 case FF_INERTIA:
1923 case FF_SPRING:
1924 case FF_DAMPER:
1925 params[1] = HIDPP_FF_CONDITION_CMDS[effect->type - FF_SPRING];
1926 params[6] = effect->u.condition[0].left_saturation >> 9;
1927 params[7] = (effect->u.condition[0].left_saturation >> 1) & 255;
1928 params[8] = effect->u.condition[0].left_coeff >> 8;
1929 params[9] = effect->u.condition[0].left_coeff & 255;
1930 params[10] = effect->u.condition[0].deadband >> 9;
1931 params[11] = (effect->u.condition[0].deadband >> 1) & 255;
1932 params[12] = effect->u.condition[0].center >> 8;
1933 params[13] = effect->u.condition[0].center & 255;
1934 params[14] = effect->u.condition[0].right_coeff >> 8;
1935 params[15] = effect->u.condition[0].right_coeff & 255;
1936 params[16] = effect->u.condition[0].right_saturation >> 9;
1937 params[17] = (effect->u.condition[0].right_saturation >> 1) & 255;
1938 size = 18;
1939 dbg_hid("Uploading %s force left coeff=%d, left sat=%d, right coeff=%d, right sat=%d\n",
1940 HIDPP_FF_CONDITION_NAMES[effect->type - FF_SPRING],
1941 effect->u.condition[0].left_coeff,
1942 effect->u.condition[0].left_saturation,
1943 effect->u.condition[0].right_coeff,
1944 effect->u.condition[0].right_saturation);
1945 dbg_hid(" deadband=%d, center=%d\n",
1946 effect->u.condition[0].deadband,
1947 effect->u.condition[0].center);
1948 break;
1949 default:
1950 hid_err(data->hidpp->hid_dev, "Unexpected force type %i!\n", effect->type);
1951 return -EINVAL;
1952 }
1953
1954 return hidpp_ff_queue_work(data, effect->id, HIDPP_FF_DOWNLOAD_EFFECT, params, size);
1955}
1956
1957static int hidpp_ff_playback(struct input_dev *dev, int effect_id, int value)
1958{
1959 struct hidpp_ff_private_data *data = dev->ff->private;
1960 u8 params[2];
1961
1962 params[1] = value ? HIDPP_FF_EFFECT_STATE_PLAY : HIDPP_FF_EFFECT_STATE_STOP;
1963
1964 dbg_hid("St%sing playback of effect %d.\n", value?"art":"opp", effect_id);
1965
1966 return hidpp_ff_queue_work(data, effect_id, HIDPP_FF_SET_EFFECT_STATE, params, ARRAY_SIZE(params));
1967}
1968
1969static int hidpp_ff_erase_effect(struct input_dev *dev, int effect_id)
1970{
1971 struct hidpp_ff_private_data *data = dev->ff->private;
1972 u8 slot = 0;
1973
1974 dbg_hid("Erasing effect %d.\n", effect_id);
1975
1976 return hidpp_ff_queue_work(data, effect_id, HIDPP_FF_DESTROY_EFFECT, &slot, 1);
1977}
1978
1979static void hidpp_ff_set_autocenter(struct input_dev *dev, u16 magnitude)
1980{
1981 struct hidpp_ff_private_data *data = dev->ff->private;
1982 u8 params[18];
1983
1984 dbg_hid("Setting autocenter to %d.\n", magnitude);
1985
1986 /* start a standard spring effect */
1987 params[1] = HIDPP_FF_EFFECT_SPRING | HIDPP_FF_EFFECT_AUTOSTART;
1988 /* zero delay and duration */
1989 params[2] = params[3] = params[4] = params[5] = 0;
1990 /* set coeff to 25% of saturation */
1991 params[8] = params[14] = magnitude >> 11;
1992 params[9] = params[15] = (magnitude >> 3) & 255;
1993 params[6] = params[16] = magnitude >> 9;
1994 params[7] = params[17] = (magnitude >> 1) & 255;
1995 /* zero deadband and center */
1996 params[10] = params[11] = params[12] = params[13] = 0;
1997
1998 hidpp_ff_queue_work(data, HIDPP_FF_EFFECTID_AUTOCENTER, HIDPP_FF_DOWNLOAD_EFFECT, params, ARRAY_SIZE(params));
1999}
2000
2001static void hidpp_ff_set_gain(struct input_dev *dev, u16 gain)
2002{
2003 struct hidpp_ff_private_data *data = dev->ff->private;
2004 u8 params[4];
2005
2006 dbg_hid("Setting gain to %d.\n", gain);
2007
2008 params[0] = gain >> 8;
2009 params[1] = gain & 255;
2010 params[2] = 0; /* no boost */
2011 params[3] = 0;
2012
2013 hidpp_ff_queue_work(data, HIDPP_FF_EFFECTID_NONE, HIDPP_FF_SET_GLOBAL_GAINS, params, ARRAY_SIZE(params));
2014}
2015
2016static ssize_t hidpp_ff_range_show(struct device *dev, struct device_attribute *attr, char *buf)
2017{
2018 struct hid_device *hid = to_hid_device(dev);
2019 struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
2020 struct input_dev *idev = hidinput->input;
2021 struct hidpp_ff_private_data *data = idev->ff->private;
2022
2023 return scnprintf(buf, PAGE_SIZE, "%u\n", data->range);
2024}
2025
2026static ssize_t hidpp_ff_range_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
2027{
2028 struct hid_device *hid = to_hid_device(dev);
2029 struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
2030 struct input_dev *idev = hidinput->input;
2031 struct hidpp_ff_private_data *data = idev->ff->private;
2032 u8 params[2];
2033 int range = simple_strtoul(buf, NULL, 10);
2034
2035 range = clamp(range, 180, 900);
2036
2037 params[0] = range >> 8;
2038 params[1] = range & 0x00FF;
2039
2040 hidpp_ff_queue_work(data, -1, HIDPP_FF_SET_APERTURE, params, ARRAY_SIZE(params));
2041
2042 return count;
2043}
2044
2045static DEVICE_ATTR(range, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, hidpp_ff_range_show, hidpp_ff_range_store);
2046
2047static void hidpp_ff_destroy(struct ff_device *ff)
2048{
2049 struct hidpp_ff_private_data *data = ff->private;
2050
2051 kfree(data->effect_ids);
2052}
2053
af2e628d 2054static int hidpp_ff_init(struct hidpp_device *hidpp, u8 feature_index)
ff21a635
EV		 2055{
2056 struct hid_device *hid = hidpp->hid_dev;
2057 struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
2058 struct input_dev *dev = hidinput->input;
2059 const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor);
2060 const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice);
2061 struct ff_device *ff;
2062 struct hidpp_report response;
2063 struct hidpp_ff_private_data *data;
2064 int error, j, num_slots;
2065 u8 version;
2066
2067 if (!dev) {
2068 hid_err(hid, "Struct input_dev not set!\n");
2069 return -EINVAL;
2070 }
2071
2072 /* Get firmware release */
2073 version = bcdDevice & 255;
2074
2075 /* Set supported force feedback capabilities */
fef33601
PH		 2076 for (j = 0; hidpp_ff_effects[j] >= 0; j++)
2077 set_bit(hidpp_ff_effects[j], dev->ffbit);
ff21a635 2078 if (version > 1)
fef33601
PH		 2079 for (j = 0; hidpp_ff_effects_v2[j] >= 0; j++)
2080 set_bit(hidpp_ff_effects_v2[j], dev->ffbit);
ff21a635
EV		 2081
2082 /* Read number of slots available in device */
2083 error = hidpp_send_fap_command_sync(hidpp, feature_index,
2084 HIDPP_FF_GET_INFO, NULL, 0, &response);
2085 if (error) {
2086 if (error < 0)
2087 return error;
2088 hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
2089 __func__, error);
2090 return -EPROTO;
2091 }
2092
2093 num_slots = response.fap.params[0] - HIDPP_FF_RESERVED_SLOTS;
2094
2095 error = input_ff_create(dev, num_slots);
2096
2097 if (error) {
2098 hid_err(dev, "Failed to create FF device!\n");
2099 return error;
2100 }
2101
2102 data = kzalloc(sizeof(*data), GFP_KERNEL);
2103 if (!data)
2104 return -ENOMEM;
2105 data->effect_ids = kcalloc(num_slots, sizeof(int), GFP_KERNEL);
2106 if (!data->effect_ids) {
2107 kfree(data);
2108 return -ENOMEM;
2109 }
6c44b15e
KL		 2110 data->wq = create_singlethread_workqueue("hidpp-ff-sendqueue");
2111 if (!data->wq) {
2112 kfree(data->effect_ids);
2113 kfree(data);
2114 return -ENOMEM;
2115 }
2116
ff21a635
EV		 2117 data->hidpp = hidpp;
2118 data->feature_index = feature_index;
2119 data->version = version;
2120 data->slot_autocenter = 0;
2121 data->num_effects = num_slots;
2122 for (j = 0; j < num_slots; j++)
2123 data->effect_ids[j] = -1;
2124
2125 ff = dev->ff;
2126 ff->private = data;
2127
2128 ff->upload = hidpp_ff_upload_effect;
2129 ff->erase = hidpp_ff_erase_effect;
2130 ff->playback = hidpp_ff_playback;
2131 ff->set_gain = hidpp_ff_set_gain;
2132 ff->set_autocenter = hidpp_ff_set_autocenter;
2133 ff->destroy = hidpp_ff_destroy;
2134
2135
2136 /* reset all forces */
2137 error = hidpp_send_fap_command_sync(hidpp, feature_index,
2138 HIDPP_FF_RESET_ALL, NULL, 0, &response);
2139
2140 /* Read current Range */
2141 error = hidpp_send_fap_command_sync(hidpp, feature_index,
2142 HIDPP_FF_GET_APERTURE, NULL, 0, &response);
2143 if (error)
2144 hid_warn(hidpp->hid_dev, "Failed to read range from device!\n");
2145 data->range = error ? 900 : get_unaligned_be16(&response.fap.params[0]);
2146
2147 /* Create sysfs interface */
2148 error = device_create_file(&(hidpp->hid_dev->dev), &dev_attr_range);
2149 if (error)
2150 hid_warn(hidpp->hid_dev, "Unable to create sysfs interface for \"range\", errno %d!\n", error);
2151
2152 /* Read the current gain values */
2153 error = hidpp_send_fap_command_sync(hidpp, feature_index,
2154 HIDPP_FF_GET_GLOBAL_GAINS, NULL, 0, &response);
2155 if (error)
2156 hid_warn(hidpp->hid_dev, "Failed to read gain values from device!\n");
2157 data->gain = error ? 0xffff : get_unaligned_be16(&response.fap.params[0]);
2158 /* ignore boost value at response.fap.params[2] */
2159
2160 /* init the hardware command queue */
ff21a635
EV		 2161 atomic_set(&data->workqueue_size, 0);
2162
2163 /* initialize with zero autocenter to get wheel in usable state */
2164 hidpp_ff_set_autocenter(dev, 0);
2165
df47b246
CIK		 2166 hid_info(hid, "Force feedback support loaded (firmware release %d).\n",
2167 version);
ff21a635
EV		 2168
2169 return 0;
2170}
2171
af2e628d 2172static int hidpp_ff_deinit(struct hid_device *hid)
ff21a635
EV		 2173{
2174 struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
2175 struct input_dev *dev = hidinput->input;
2176 struct hidpp_ff_private_data *data;
2177
2178 if (!dev) {
2179 hid_err(hid, "Struct input_dev not found!\n");
2180 return -EINVAL;
2181 }
2182
2183 hid_info(hid, "Unloading HID++ force feedback.\n");
2184 data = dev->ff->private;
2185 if (!data) {
2186 hid_err(hid, "Private data not found!\n");
2187 return -EINVAL;
2188 }
2189
2190 destroy_workqueue(data->wq);
2191 device_remove_file(&hid->dev, &dev_attr_range);
2192
2193 return 0;
2194}
2195
2196
2f31c525
BT		 2197/* ************************************************************************** */
2198/* */
2199/* Device Support */
2200/* */
2201/* ************************************************************************** */
2202
2203/* -------------------------------------------------------------------------- */
2204/* Touchpad HID++ devices */
2205/* -------------------------------------------------------------------------- */
2206
57ac86cf
BT		 2207#define WTP_MANUAL_RESOLUTION 39
2208
2f31c525
BT		 2209struct wtp_data {
2210 struct input_dev *input;
2211 u16 x_size, y_size;
2212 u8 finger_count;
2213 u8 mt_feature_index;
2214 u8 button_feature_index;
2215 u8 maxcontacts;
2216 bool flip_y;
2217 unsigned int resolution;
2218};
2219
2220static int wtp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
2221 struct hid_field *field, struct hid_usage *usage,
2222 unsigned long **bit, int *max)
2223{
2224 return -1;
2225}
2226
c39e3d5f
BT		 2227static void wtp_populate_input(struct hidpp_device *hidpp,
2228 struct input_dev *input_dev, bool origin_is_hid_core)
2f31c525 2229{
2f31c525 2230 struct wtp_data *wd = hidpp->private_data;
2f31c525
BT		 2231
2232 __set_bit(EV_ABS, input_dev->evbit);
2233 __set_bit(EV_KEY, input_dev->evbit);
2234 __clear_bit(EV_REL, input_dev->evbit);
2235 __clear_bit(EV_LED, input_dev->evbit);
2236
2237 input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0, wd->x_size, 0, 0);
2238 input_abs_set_res(input_dev, ABS_MT_POSITION_X, wd->resolution);
2239 input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0, wd->y_size, 0, 0);
2240 input_abs_set_res(input_dev, ABS_MT_POSITION_Y, wd->resolution);
2241
2242 /* Max pressure is not given by the devices, pick one */
2243 input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 50, 0, 0);
2244
2245 input_set_capability(input_dev, EV_KEY, BTN_LEFT);
2246
57ac86cf
BT		 2247 if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS)
2248 input_set_capability(input_dev, EV_KEY, BTN_RIGHT);
2249 else
2250 __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit);
2f31c525
BT		 2251
2252 input_mt_init_slots(input_dev, wd->maxcontacts, INPUT_MT_POINTER |
2253 INPUT_MT_DROP_UNUSED);
2254
2255 wd->input = input_dev;
2256}
2257
2258static void wtp_touch_event(struct wtp_data *wd,
2259 struct hidpp_touchpad_raw_xy_finger *touch_report)
2260{
2261 int slot;
2262
2263 if (!touch_report->finger_id || touch_report->contact_type)
2264 /* no actual data */
2265 return;
2266
2267 slot = input_mt_get_slot_by_key(wd->input, touch_report->finger_id);
2268
2269 input_mt_slot(wd->input, slot);
2270 input_mt_report_slot_state(wd->input, MT_TOOL_FINGER,
2271 touch_report->contact_status);
2272 if (touch_report->contact_status) {
2273 input_event(wd->input, EV_ABS, ABS_MT_POSITION_X,
2274 touch_report->x);
2275 input_event(wd->input, EV_ABS, ABS_MT_POSITION_Y,
2276 wd->flip_y ? wd->y_size - touch_report->y :
2277 touch_report->y);
2278 input_event(wd->input, EV_ABS, ABS_MT_PRESSURE,
2279 touch_report->area);
2280 }
2281}
2282
2283static void wtp_send_raw_xy_event(struct hidpp_device *hidpp,
2284 struct hidpp_touchpad_raw_xy *raw)
2285{
2286 struct wtp_data *wd = hidpp->private_data;
2287 int i;
2288
2289 for (i = 0; i < 2; i++)
2290 wtp_touch_event(wd, &(raw->fingers[i]));
2291
57ac86cf
BT		 2292 if (raw->end_of_frame &&
2293 !(hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS))
2f31c525
BT		 2294 input_event(wd->input, EV_KEY, BTN_LEFT, raw->button);
2295
2296 if (raw->end_of_frame || raw->finger_count <= 2) {
2297 input_mt_sync_frame(wd->input);
2298 input_sync(wd->input);
2299 }
2300}
2301
2302static int wtp_mouse_raw_xy_event(struct hidpp_device *hidpp, u8 *data)
2303{
2304 struct wtp_data *wd = hidpp->private_data;
2305 u8 c1_area = ((data[7] & 0xf) * (data[7] & 0xf) +
2306 (data[7] >> 4) * (data[7] >> 4)) / 2;
2307 u8 c2_area = ((data[13] & 0xf) * (data[13] & 0xf) +
2308 (data[13] >> 4) * (data[13] >> 4)) / 2;
2309 struct hidpp_touchpad_raw_xy raw = {
2310 .timestamp = data[1],
2311 .fingers = {
2312 {
2313 .contact_type = 0,
2314 .contact_status = !!data[7],
2315 .x = get_unaligned_le16(&data[3]),
2316 .y = get_unaligned_le16(&data[5]),
2317 .z = c1_area,
2318 .area = c1_area,
2319 .finger_id = data[2],
2320 }, {
2321 .contact_type = 0,
2322 .contact_status = !!data[13],
2323 .x = get_unaligned_le16(&data[9]),
2324 .y = get_unaligned_le16(&data[11]),
2325 .z = c2_area,
2326 .area = c2_area,
2327 .finger_id = data[8],
2328 }
2329 },
2330 .finger_count = wd->maxcontacts,
2331 .spurious_flag = 0,
2332 .end_of_frame = (data[0] >> 7) == 0,
2333 .button = data[0] & 0x01,
2334 };
2335
2336 wtp_send_raw_xy_event(hidpp, &raw);
2337
2338 return 1;
2339}
2340
2341static int wtp_raw_event(struct hid_device *hdev, u8 *data, int size)
2342{
2343 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2344 struct wtp_data *wd = hidpp->private_data;
586bdc4e
BT		 2345 struct hidpp_report *report = (struct hidpp_report *)data;
2346 struct hidpp_touchpad_raw_xy raw;
2f31c525 2347
586bdc4e 2348 if (!wd || !wd->input)
2f31c525
BT		 2349 return 1;
2350
586bdc4e
BT		 2351 switch (data[0]) {
2352 case 0x02:
0b3f6569
PW		 2353 if (size < 2) {
2354 hid_err(hdev, "Received HID report of bad size (%d)",
2355 size);
2356 return 1;
2357 }
57ac86cf
BT		 2358 if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS) {
2359 input_event(wd->input, EV_KEY, BTN_LEFT,
2360 !!(data[1] & 0x01));
2361 input_event(wd->input, EV_KEY, BTN_RIGHT,
2362 !!(data[1] & 0x02));
2363 input_sync(wd->input);
8abd8205 2364 return 0;
57ac86cf
BT		 2365 } else {
2366 if (size < 21)
2367 return 1;
2368 return wtp_mouse_raw_xy_event(hidpp, &data[7]);
2369 }
586bdc4e 2370 case REPORT_ID_HIDPP_LONG:
0b3f6569 2371 /* size is already checked in hidpp_raw_event. */
586bdc4e
BT		 2372 if ((report->fap.feature_index != wd->mt_feature_index) ||
2373 (report->fap.funcindex_clientid != EVENT_TOUCHPAD_RAW_XY))
2374 return 1;
2375 hidpp_touchpad_raw_xy_event(hidpp, data + 4, &raw);
2376
2377 wtp_send_raw_xy_event(hidpp, &raw);
2378 return 0;
2379 }
2380
2381 return 0;
2f31c525
BT		 2382}
2383
2384static int wtp_get_config(struct hidpp_device *hidpp)
2385{
2386 struct wtp_data *wd = hidpp->private_data;
2387 struct hidpp_touchpad_raw_info raw_info = {0};
2388 u8 feature_type;
2389 int ret;
2390
2391 ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_TOUCHPAD_RAW_XY,
2392 &wd->mt_feature_index, &feature_type);
2393 if (ret)
2394 /* means that the device is not powered up */
2395 return ret;
2396
2397 ret = hidpp_touchpad_get_raw_info(hidpp, wd->mt_feature_index,
2398 &raw_info);
2399 if (ret)
2400 return ret;
2401
2402 wd->x_size = raw_info.x_size;
2403 wd->y_size = raw_info.y_size;
2404 wd->maxcontacts = raw_info.maxcontacts;
2405 wd->flip_y = raw_info.origin == TOUCHPAD_RAW_XY_ORIGIN_LOWER_LEFT;
2406 wd->resolution = raw_info.res;
57ac86cf
BT		 2407 if (!wd->resolution)
2408 wd->resolution = WTP_MANUAL_RESOLUTION;
2f31c525
BT		 2409
2410 return 0;
2411}
2412
2413static int wtp_allocate(struct hid_device *hdev, const struct hid_device_id *id)
2414{
2415 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2416 struct wtp_data *wd;
2417
2418 wd = devm_kzalloc(&hdev->dev, sizeof(struct wtp_data),
2419 GFP_KERNEL);
2420 if (!wd)
2421 return -ENOMEM;
2422
2423 hidpp->private_data = wd;
2424
2425 return 0;
2426};
2427
bf159447 2428static int wtp_connect(struct hid_device *hdev, bool connected)
586bdc4e
BT		 2429{
2430 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2431 struct wtp_data *wd = hidpp->private_data;
2432 int ret;
2433
586bdc4e
BT		 2434 if (!wd->x_size) {
2435 ret = wtp_get_config(hidpp);
2436 if (ret) {
2437 hid_err(hdev, "Can not get wtp config: %d\n", ret);
bf159447 2438 return ret;
586bdc4e
BT		 2439 }
2440 }
2441
bf159447 2442 return hidpp_touchpad_set_raw_report_state(hidpp, wd->mt_feature_index,
586bdc4e
BT		 2443 true, true);
2444}
2445
8a09b4fa
GB		 2446/* ------------------------------------------------------------------------- */
2447/* Logitech M560 devices */
2448/* ------------------------------------------------------------------------- */
2449
2450/*
2451 * Logitech M560 protocol overview
2452 *
2453 * The Logitech M560 mouse, is designed for windows 8. When the middle and/or
2454 * the sides buttons are pressed, it sends some keyboard keys events
2455 * instead of buttons ones.
2456 * To complicate things further, the middle button keys sequence
2457 * is different from the odd press and the even press.
2458 *
2459 * forward button -> Super_R
2460 * backward button -> Super_L+'d' (press only)
2461 * middle button -> 1st time: Alt_L+SuperL+XF86TouchpadOff (press only)
2462 * 2nd time: left-click (press only)
2463 * NB: press-only means that when the button is pressed, the
2464 * KeyPress/ButtonPress and KeyRelease/ButtonRelease events are generated
2465 * together sequentially; instead when the button is released, no event is
2466 * generated !
2467 *
2468 * With the command
2469 * 10<xx>0a 3500af03 (where <xx> is the mouse id),
2470 * the mouse reacts differently:
2471 * - it never sends a keyboard key event
2472 * - for the three mouse button it sends:
2473 * middle button press 11<xx>0a 3500af00...
2474 * side 1 button (forward) press 11<xx>0a 3500b000...
2475 * side 2 button (backward) press 11<xx>0a 3500ae00...
2476 * middle/side1/side2 button release 11<xx>0a 35000000...
2477 */
2478
2479static const u8 m560_config_parameter[] = {0x00, 0xaf, 0x03};
2480
2481struct m560_private_data {
2482 struct input_dev *input;
2483};
2484
2485/* how buttons are mapped in the report */
2486#define M560_MOUSE_BTN_LEFT 0x01
2487#define M560_MOUSE_BTN_RIGHT 0x02
2488#define M560_MOUSE_BTN_WHEEL_LEFT 0x08
2489#define M560_MOUSE_BTN_WHEEL_RIGHT 0x10
2490
2491#define M560_SUB_ID 0x0a
2492#define M560_BUTTON_MODE_REGISTER 0x35
2493
2494static int m560_send_config_command(struct hid_device *hdev, bool connected)
2495{
2496 struct hidpp_report response;
2497 struct hidpp_device *hidpp_dev;
2498
2499 hidpp_dev = hid_get_drvdata(hdev);
2500
8a09b4fa
GB		 2501 return hidpp_send_rap_command_sync(
2502 hidpp_dev,
2503 REPORT_ID_HIDPP_SHORT,
2504 M560_SUB_ID,
2505 M560_BUTTON_MODE_REGISTER,
2506 (u8 *)m560_config_parameter,
2507 sizeof(m560_config_parameter),
2508 &response
2509 );
2510}
2511
2512static int m560_allocate(struct hid_device *hdev)
2513{
2514 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2515 struct m560_private_data *d;
2516
2517 d = devm_kzalloc(&hdev->dev, sizeof(struct m560_private_data),
2518 GFP_KERNEL);
2519 if (!d)
2520 return -ENOMEM;
2521
2522 hidpp->private_data = d;
2523
2524 return 0;
2525};
2526
2527static int m560_raw_event(struct hid_device *hdev, u8 *data, int size)
2528{
2529 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2530 struct m560_private_data *mydata = hidpp->private_data;
2531
2532 /* sanity check */
2533 if (!mydata || !mydata->input) {
2534 hid_err(hdev, "error in parameter\n");
2535 return -EINVAL;
2536 }
2537
2538 if (size < 7) {
2539 hid_err(hdev, "error in report\n");
2540 return 0;
2541 }
2542
2543 if (data[0] == REPORT_ID_HIDPP_LONG &&
2544 data[2] == M560_SUB_ID && data[6] == 0x00) {
2545 /*
2546 * m560 mouse report for middle, forward and backward button
2547 *
2548 * data[0] = 0x11
2549 * data[1] = device-id
2550 * data[2] = 0x0a
2551 * data[5] = 0xaf -> middle
2552 * 0xb0 -> forward
2553 * 0xae -> backward
2554 * 0x00 -> release all
2555 * data[6] = 0x00
2556 */
2557
2558 switch (data[5]) {
2559 case 0xaf:
2560 input_report_key(mydata->input, BTN_MIDDLE, 1);
2561 break;
2562 case 0xb0:
2563 input_report_key(mydata->input, BTN_FORWARD, 1);
2564 break;
2565 case 0xae:
2566 input_report_key(mydata->input, BTN_BACK, 1);
2567 break;
2568 case 0x00:
2569 input_report_key(mydata->input, BTN_BACK, 0);
2570 input_report_key(mydata->input, BTN_FORWARD, 0);
2571 input_report_key(mydata->input, BTN_MIDDLE, 0);
2572 break;
2573 default:
2574 hid_err(hdev, "error in report\n");
2575 return 0;
2576 }
2577 input_sync(mydata->input);
2578
2579 } else if (data[0] == 0x02) {
2580 /*
2581 * Logitech M560 mouse report
2582 *
2583 * data[0] = type (0x02)
2584 * data[1..2] = buttons
2585 * data[3..5] = xy
2586 * data[6] = wheel
2587 */
2588
2589 int v;
2590
2591 input_report_key(mydata->input, BTN_LEFT,
2592 !!(data[1] & M560_MOUSE_BTN_LEFT));
2593 input_report_key(mydata->input, BTN_RIGHT,
2594 !!(data[1] & M560_MOUSE_BTN_RIGHT));
2595
4435ff2f 2596 if (data[1] & M560_MOUSE_BTN_WHEEL_LEFT) {
8a09b4fa 2597 input_report_rel(mydata->input, REL_HWHEEL, -1);
4435ff2f
HC		 2598 input_report_rel(mydata->input, REL_HWHEEL_HI_RES,
2599 -120);
2600 } else if (data[1] & M560_MOUSE_BTN_WHEEL_RIGHT) {
8a09b4fa 2601 input_report_rel(mydata->input, REL_HWHEEL, 1);
4435ff2f
HC		 2602 input_report_rel(mydata->input, REL_HWHEEL_HI_RES,
2603 120);
2604 }
8a09b4fa
GB		 2605
2606 v = hid_snto32(hid_field_extract(hdev, data+3, 0, 12), 12);
2607 input_report_rel(mydata->input, REL_X, v);
2608
2609 v = hid_snto32(hid_field_extract(hdev, data+3, 12, 12), 12);
2610 input_report_rel(mydata->input, REL_Y, v);
2611
2612 v = hid_snto32(data[6], 8);
fd35759c
PH		 2613 if (v != 0)
2614 hidpp_scroll_counter_handle_scroll(
2615 &hidpp->vertical_wheel_counter, v);
8a09b4fa
GB		 2616
2617 input_sync(mydata->input);
2618 }
2619
2620 return 1;
2621}
2622
2623static void m560_populate_input(struct hidpp_device *hidpp,
2624 struct input_dev *input_dev, bool origin_is_hid_core)
2625{
2626 struct m560_private_data *mydata = hidpp->private_data;
2627
2628 mydata->input = input_dev;
2629
2630 __set_bit(EV_KEY, mydata->input->evbit);
2631 __set_bit(BTN_MIDDLE, mydata->input->keybit);
2632 __set_bit(BTN_RIGHT, mydata->input->keybit);
2633 __set_bit(BTN_LEFT, mydata->input->keybit);
2634 __set_bit(BTN_BACK, mydata->input->keybit);
2635 __set_bit(BTN_FORWARD, mydata->input->keybit);
2636
2637 __set_bit(EV_REL, mydata->input->evbit);
2638 __set_bit(REL_X, mydata->input->relbit);
2639 __set_bit(REL_Y, mydata->input->relbit);
2640 __set_bit(REL_WHEEL, mydata->input->relbit);
2641 __set_bit(REL_HWHEEL, mydata->input->relbit);
4435ff2f
HC		 2642 __set_bit(REL_WHEEL_HI_RES, mydata->input->relbit);
2643 __set_bit(REL_HWHEEL_HI_RES, mydata->input->relbit);
8a09b4fa
GB		 2644}
2645
2646static int m560_input_mapping(struct hid_device *hdev, struct hid_input *hi,
2647 struct hid_field *field, struct hid_usage *usage,
2648 unsigned long **bit, int *max)
2649{
2650 return -1;
2651}
2652
90cdd986
BT		 2653/* ------------------------------------------------------------------------- */
2654/* Logitech K400 devices */
2655/* ------------------------------------------------------------------------- */
2656
2657/*
2658 * The Logitech K400 keyboard has an embedded touchpad which is seen
2659 * as a mouse from the OS point of view. There is a hardware shortcut to disable
2660 * tap-to-click but the setting is not remembered accross reset, annoying some
2661 * users.
2662 *
2663 * We can toggle this feature from the host by using the feature 0x6010:
2664 * Touchpad FW items
2665 */
2666
2667struct k400_private_data {
2668 u8 feature_index;
2669};
2670
2671static int k400_disable_tap_to_click(struct hidpp_device *hidpp)
2672{
2673 struct k400_private_data *k400 = hidpp->private_data;
2674 struct hidpp_touchpad_fw_items items = {};
2675 int ret;
2676 u8 feature_type;
2677
2678 if (!k400->feature_index) {
2679 ret = hidpp_root_get_feature(hidpp,
2680 HIDPP_PAGE_TOUCHPAD_FW_ITEMS,
2681 &k400->feature_index, &feature_type);
2682 if (ret)
2683 /* means that the device is not powered up */
2684 return ret;
2685 }
2686
2687 ret = hidpp_touchpad_fw_items_set(hidpp, k400->feature_index, &items);
2688 if (ret)
2689 return ret;
2690
2691 return 0;
2692}
2693
2694static int k400_allocate(struct hid_device *hdev)
2695{
2696 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2697 struct k400_private_data *k400;
2698
2699 k400 = devm_kzalloc(&hdev->dev, sizeof(struct k400_private_data),
2700 GFP_KERNEL);
2701 if (!k400)
2702 return -ENOMEM;
2703
2704 hidpp->private_data = k400;
2705
2706 return 0;
2707};
2708
2709static int k400_connect(struct hid_device *hdev, bool connected)
2710{
2711 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2712
90cdd986
BT		 2713 if (!disable_tap_to_click)
2714 return 0;
2715
2716 return k400_disable_tap_to_click(hidpp);
2717}
2718
7f4b49fe
SW		 2719/* ------------------------------------------------------------------------- */
2720/* Logitech G920 Driving Force Racing Wheel for Xbox One */
2721/* ------------------------------------------------------------------------- */
2722
2723#define HIDPP_PAGE_G920_FORCE_FEEDBACK 0x8123
2724
7f4b49fe
SW		 2725static int g920_get_config(struct hidpp_device *hidpp)
2726{
7f4b49fe
SW		 2727 u8 feature_type;
2728 u8 feature_index;
2729 int ret;
2730
7f4b49fe
SW		 2731 /* Find feature and store for later use */
2732 ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_G920_FORCE_FEEDBACK,
2733 &feature_index, &feature_type);
2734 if (ret)
2735 return ret;
2736
ff21a635 2737 ret = hidpp_ff_init(hidpp, feature_index);
7f4b49fe 2738 if (ret)
ff21a635
EV		 2739 hid_warn(hidpp->hid_dev, "Unable to initialize force feedback support, errno %d\n",
2740 ret);
7f4b49fe
SW		 2741
2742 return 0;
2743}
2744
4435ff2f
HC		 2745/* -------------------------------------------------------------------------- */
2746/* High-resolution scroll wheels */
2747/* -------------------------------------------------------------------------- */
2748
2749static int hi_res_scroll_enable(struct hidpp_device *hidpp)
2750{
2751 int ret;
2752 u8 multiplier = 1;
2753
2754 if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_X2121) {
2755 ret = hidpp_hrw_set_wheel_mode(hidpp, false, true, false);
2756 if (ret == 0)
2757 ret = hidpp_hrw_get_wheel_capability(hidpp, &multiplier);
2758 } else if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_X2120) {
2759 ret = hidpp_hrs_set_highres_scrolling_mode(hidpp, true,
2760 &multiplier);
2761 } else /* if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_1P0) */ {
2762 ret = hidpp10_enable_scrolling_acceleration(hidpp);
2763 multiplier = 8;
2764 }
2765 if (ret)
2766 return ret;
2767
2768 if (multiplier == 0)
2769 multiplier = 1;
2770
2771 hidpp->vertical_wheel_counter.wheel_multiplier = multiplier;
2772 hid_info(hidpp->hid_dev, "multiplier = %d\n", multiplier);
2773 return 0;
2774}
2775
2f31c525
BT		 2776/* -------------------------------------------------------------------------- */
2777/* Generic HID++ devices */
2778/* -------------------------------------------------------------------------- */
2779
2780static int hidpp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
2781 struct hid_field *field, struct hid_usage *usage,
2782 unsigned long **bit, int *max)
2783{
2784 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2785
fe3ee1ec
BT		 2786 if (!hidpp)
2787 return 0;
2788
2f31c525
BT		 2789 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
2790 return wtp_input_mapping(hdev, hi, field, usage, bit, max);
8a09b4fa
GB		 2791 else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560 &&
2792 field->application != HID_GD_MOUSE)
2793 return m560_input_mapping(hdev, hi, field, usage, bit, max);
2f31c525
BT		 2794
2795 return 0;
2796}
2797
0b1804e3
SW		 2798static int hidpp_input_mapped(struct hid_device *hdev, struct hid_input *hi,
2799 struct hid_field *field, struct hid_usage *usage,
2800 unsigned long **bit, int *max)
2801{
2802 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
2803
fe3ee1ec
BT		 2804 if (!hidpp)
2805 return 0;
2806
0b1804e3
SW		 2807 /* Ensure that Logitech G920 is not given a default fuzz/flat value */
2808 if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
2809 if (usage->type == EV_ABS && (usage->code == ABS_X ||
2810 usage->code == ABS_Y || usage->code == ABS_Z ||
2811 usage->code == ABS_RZ)) {
2812 field->application = HID_GD_MULTIAXIS;
2813 }
2814 }
2815
2816 return 0;
2817}
2818
2819
c39e3d5f
BT		 2820static void hidpp_populate_input(struct hidpp_device *hidpp,
2821 struct input_dev *input, bool origin_is_hid_core)
2822{
2823 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
2824 wtp_populate_input(hidpp, input, origin_is_hid_core);
8a09b4fa
GB		 2825 else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560)
2826 m560_populate_input(hidpp, input, origin_is_hid_core);
4435ff2f
HC		 2827
2828 if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL)
2829 hidpp->vertical_wheel_counter.dev = input;
c39e3d5f
BT		 2830}
2831
b2c68a2f 2832static int hidpp_input_configured(struct hid_device *hdev,
2f31c525
BT		 2833 struct hid_input *hidinput)
2834{
2835 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
c39e3d5f 2836 struct input_dev *input = hidinput->input;
2f31c525 2837
fe3ee1ec
BT		 2838 if (!hidpp)
2839 return 0;
2840
c39e3d5f 2841 hidpp_populate_input(hidpp, input, true);
b2c68a2f
DT		 2842
2843 return 0;
2f31c525
BT		 2844}
2845
2846static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data,
2847 int size)
2848{
2849 struct hidpp_report *question = hidpp->send_receive_buf;
2850 struct hidpp_report *answer = hidpp->send_receive_buf;
2851 struct hidpp_report *report = (struct hidpp_report *)data;
eb626c57 2852 int ret;
2f31c525
BT		 2853
2854 /*
2855 * If the mutex is locked then we have a pending answer from a
e529fea9 2856 * previously sent command.
2f31c525
BT		 2857 */
2858 if (unlikely(mutex_is_locked(&hidpp->send_mutex))) {
2859 /*
2860 * Check for a correct hidpp20 answer or the corresponding
2861 * error
2862 */
2863 if (hidpp_match_answer(question, report) ||
2864 hidpp_match_error(question, report)) {
2865 *answer = *report;
2866 hidpp->answer_available = true;
2867 wake_up(&hidpp->wait);
2868 /*
2869 * This was an answer to a command that this driver sent
2870 * We return 1 to hid-core to avoid forwarding the
2871 * command upstream as it has been treated by the driver
2872 */
2873
2874 return 1;
2875 }
2876 }
2877
c39e3d5f
BT		 2878 if (unlikely(hidpp_report_is_connect_event(report))) {
2879 atomic_set(&hidpp->connected,
2880 !(report->rap.params[0] & (1 << 6)));
6bd4e65d 2881 if (schedule_work(&hidpp->work) == 0)
c39e3d5f
BT		 2882 dbg_hid("%s: connect event already queued\n", __func__);
2883 return 1;
2884 }
2885
eb626c57
BT		 2886 if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) {
2887 ret = hidpp20_battery_event(hidpp, data, size);
2888 if (ret != 0)
2889 return ret;
696ecef9
BT		 2890 ret = hidpp_solar_battery_event(hidpp, data, size);
2891 if (ret != 0)
2892 return ret;
eb626c57
BT		 2893 }
2894
7f7ce2a2
BT		 2895 if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP10_BATTERY) {
2896 ret = hidpp10_battery_event(hidpp, data, size);
2897 if (ret != 0)
2898 return ret;
2899 }
2900
2f31c525
BT		 2901 return 0;
2902}
2903
2904static int hidpp_raw_event(struct hid_device *hdev, struct hid_report *report,
2905 u8 *data, int size)
2906{
2907 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
e529fea9 2908 int ret = 0;
2f31c525 2909
fe3ee1ec
BT		 2910 if (!hidpp)
2911 return 0;
2912
e529fea9 2913 /* Generic HID++ processing. */
2f31c525 2914 switch (data[0]) {
a5ce8f5b
SW		 2915 case REPORT_ID_HIDPP_VERY_LONG:
2916 if (size != HIDPP_REPORT_VERY_LONG_LENGTH) {
2917 hid_err(hdev, "received hid++ report of bad size (%d)",
2918 size);
2919 return 1;
2920 }
2921 ret = hidpp_raw_hidpp_event(hidpp, data, size);
2922 break;
2f31c525
BT		 2923 case REPORT_ID_HIDPP_LONG:
2924 if (size != HIDPP_REPORT_LONG_LENGTH) {
2925 hid_err(hdev, "received hid++ report of bad size (%d)",
2926 size);
2927 return 1;
2928 }
e529fea9
PW		 2929 ret = hidpp_raw_hidpp_event(hidpp, data, size);
2930 break;
2f31c525
BT		 2931 case REPORT_ID_HIDPP_SHORT:
2932 if (size != HIDPP_REPORT_SHORT_LENGTH) {
2933 hid_err(hdev, "received hid++ report of bad size (%d)",
2934 size);
2935 return 1;
2936 }
e529fea9
PW		 2937 ret = hidpp_raw_hidpp_event(hidpp, data, size);
2938 break;
2f31c525
BT		 2939 }
2940
e529fea9
PW		 2941 /* If no report is available for further processing, skip calling
2942 * raw_event of subclasses. */
2943 if (ret != 0)
2944 return ret;
2945
2f31c525
BT		 2946 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
2947 return wtp_raw_event(hdev, data, size);
8a09b4fa
GB		 2948 else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560)
2949 return m560_raw_event(hdev, data, size);
2f31c525
BT		 2950
2951 return 0;
2952}
2953
4435ff2f
HC		 2954static int hidpp_event(struct hid_device *hdev, struct hid_field *field,
2955 struct hid_usage *usage, __s32 value)
2956{
2957 /* This function will only be called for scroll events, due to the
2958 * restriction imposed in hidpp_usages.
2959 */
2960 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
fe3ee1ec
BT		 2961 struct hidpp_scroll_counter *counter;
2962
2963 if (!hidpp)
2964 return 0;
2965
2966 counter = &hidpp->vertical_wheel_counter;
4435ff2f
HC		 2967 /* A scroll event may occur before the multiplier has been retrieved or
2968 * the input device set, or high-res scroll enabling may fail. In such
2969 * cases we must return early (falling back to default behaviour) to
2970 * avoid a crash in hidpp_scroll_counter_handle_scroll.
2971 */
2972 if (!(hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL) || value == 0
2973 || counter->dev == NULL || counter->wheel_multiplier == 0)
2974 return 0;
2975
2976 hidpp_scroll_counter_handle_scroll(counter, value);
2977 return 1;
2978}
2979
a52ec107
BT		 2980static int hidpp_initialize_battery(struct hidpp_device *hidpp)
2981{
2982 static atomic_t battery_no = ATOMIC_INIT(0);
2983 struct power_supply_config cfg = { .drv_data = hidpp };
2984 struct power_supply_desc *desc = &hidpp->battery.desc;
5b036ea1 2985 enum power_supply_property *battery_props;
a52ec107 2986 struct hidpp_battery *battery;
5b036ea1 2987 unsigned int num_battery_props;
a52ec107
BT		 2988 unsigned long n;
2989 int ret;
2990
2991 if (hidpp->battery.ps)
2992 return 0;
2993
696ecef9
BT		 2994 hidpp->battery.feature_index = 0xff;
2995 hidpp->battery.solar_feature_index = 0xff;
2996
a52ec107 2997 if (hidpp->protocol_major >= 2) {
696ecef9
BT		 2998 if (hidpp->quirks & HIDPP_QUIRK_CLASS_K750)
2999 ret = hidpp_solar_request_battery_event(hidpp);
3000 else
3001 ret = hidpp20_query_battery_info(hidpp);
3002
a52ec107
BT		 3003 if (ret)
3004 return ret;
3005 hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP20_BATTERY;
3006 } else {
7f7ce2a2
BT		 3007 ret = hidpp10_query_battery_status(hidpp);
3008 if (ret) {
3009 ret = hidpp10_query_battery_mileage(hidpp);
3010 if (ret)
3011 return -ENOENT;
3012 hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_MILEAGE;
3013 } else {
3014 hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS;
3015 }
3016 hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP10_BATTERY;
a52ec107
BT		 3017 }
3018
5b036ea1
BT		 3019 battery_props = devm_kmemdup(&hidpp->hid_dev->dev,
3020 hidpp_battery_props,
3021 sizeof(hidpp_battery_props),
3022 GFP_KERNEL);
929b60a8
GS		 3023 if (!battery_props)
3024 return -ENOMEM;
3025
5b036ea1
BT		 3026 num_battery_props = ARRAY_SIZE(hidpp_battery_props) - 2;
3027
3028 if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE)
3029 battery_props[num_battery_props++] =
3030 POWER_SUPPLY_PROP_CAPACITY;
3031
3032 if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS)
3033 battery_props[num_battery_props++] =
3034 POWER_SUPPLY_PROP_CAPACITY_LEVEL;
3035
a52ec107
BT		 3036 battery = &hidpp->battery;
3037
3038 n = atomic_inc_return(&battery_no) - 1;
5b036ea1
BT		 3039 desc->properties = battery_props;
3040 desc->num_properties = num_battery_props;
a52ec107
BT		 3041 desc->get_property = hidpp_battery_get_property;
3042 sprintf(battery->name, "hidpp_battery_%ld", n);
3043 desc->name = battery->name;
3044 desc->type = POWER_SUPPLY_TYPE_BATTERY;
3045 desc->use_for_apm = 0;
3046
3047 battery->ps = devm_power_supply_register(&hidpp->hid_dev->dev,
3048 &battery->desc,
3049 &cfg);
3050 if (IS_ERR(battery->ps))
3051 return PTR_ERR(battery->ps);
3052
3053 power_supply_powers(battery->ps, &hidpp->hid_dev->dev);
3054
3055 return ret;
3056}
3057
843c624e 3058static void hidpp_overwrite_name(struct hid_device *hdev)
2f31c525
BT		 3059{
3060 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
3061 char *name;
2f31c525 3062
843c624e 3063 if (hidpp->protocol_major < 2)
b4f8ce07 3064 return;
843c624e
BT		 3065
3066 name = hidpp_get_device_name(hidpp);
2f31c525 3067
7bfd2927 3068 if (!name) {
2f31c525 3069 hid_err(hdev, "unable to retrieve the name of the device");
7bfd2927
SW		 3070 } else {
3071 dbg_hid("HID++: Got name: %s\n", name);
2f31c525 3072 snprintf(hdev->name, sizeof(hdev->name), "%s", name);
7bfd2927 3073 }
2f31c525
BT		 3074
3075 kfree(name);
3076}
3077
c39e3d5f
BT		 3078static int hidpp_input_open(struct input_dev *dev)
3079{
3080 struct hid_device *hid = input_get_drvdata(dev);
3081
3082 return hid_hw_open(hid);
3083}
3084
3085static void hidpp_input_close(struct input_dev *dev)
3086{
3087 struct hid_device *hid = input_get_drvdata(dev);
3088
3089 hid_hw_close(hid);
3090}
3091
3092static struct input_dev *hidpp_allocate_input(struct hid_device *hdev)
3093{
3094 struct input_dev *input_dev = devm_input_allocate_device(&hdev->dev);
005b3f57 3095 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
c39e3d5f
BT		 3096
3097 if (!input_dev)
3098 return NULL;
3099
3100 input_set_drvdata(input_dev, hdev);
3101 input_dev->open = hidpp_input_open;
3102 input_dev->close = hidpp_input_close;
3103
005b3f57 3104 input_dev->name = hidpp->name;
c39e3d5f
BT		 3105 input_dev->phys = hdev->phys;
3106 input_dev->uniq = hdev->uniq;
3107 input_dev->id.bustype = hdev->bus;
3108 input_dev->id.vendor = hdev->vendor;
3109 input_dev->id.product = hdev->product;
3110 input_dev->id.version = hdev->version;
3111 input_dev->dev.parent = &hdev->dev;
3112
3113 return input_dev;
3114}
3115
3116static void hidpp_connect_event(struct hidpp_device *hidpp)
3117{
3118 struct hid_device *hdev = hidpp->hid_dev;
3119 int ret = 0;
3120 bool connected = atomic_read(&hidpp->connected);
3121 struct input_dev *input;
3122 char *name, *devm_name;
c39e3d5f 3123
284f8d75
BT		 3124 if (!connected) {
3125 if (hidpp->battery.ps) {
3126 hidpp->battery.online = false;
3127 hidpp->battery.status = POWER_SUPPLY_STATUS_UNKNOWN;
5b036ea1 3128 hidpp->battery.level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
284f8d75
BT		 3129 power_supply_changed(hidpp->battery.ps);
3130 }
2936836f 3131 return;
284f8d75 3132 }
2936836f 3133
bf159447
BT		 3134 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
3135 ret = wtp_connect(hdev, connected);
3136 if (ret)
3137 return;
8a09b4fa
GB		 3138 } else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) {
3139 ret = m560_send_config_command(hdev, connected);
3140 if (ret)
3141 return;
90cdd986
BT		 3142 } else if (hidpp->quirks & HIDPP_QUIRK_CLASS_K400) {
3143 ret = k400_connect(hdev, connected);
3144 if (ret)
3145 return;
bf159447 3146 }
586bdc4e 3147
580a7e82
BT		 3148 /* the device is already connected, we can ask for its name and
3149 * protocol */
c39e3d5f 3150 if (!hidpp->protocol_major) {
090760d4 3151 ret = hidpp_root_get_protocol_version(hidpp);
c39e3d5f
BT		 3152 if (ret) {
3153 hid_err(hdev, "Can not get the protocol version.\n");
3154 return;
3155 }
3156 }
3157
187f2bba 3158 if (hidpp->name == hdev->name && hidpp->protocol_major >= 2) {
005b3f57
BT		 3159 name = hidpp_get_device_name(hidpp);
3160 if (!name) {
3161 hid_err(hdev,
3162 "unable to retrieve the name of the device");
3163 return;
3164 }
3165
3166 devm_name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "%s", name);
3167 kfree(name);
3168 if (!devm_name)
3169 return;
3170
3171 hidpp->name = devm_name;
3172 }
3173
187f2bba
BT		 3174 hidpp_initialize_battery(hidpp);
3175
9b9c519f 3176 /* forward current battery state */
7f7ce2a2
BT		 3177 if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP10_BATTERY) {
3178 hidpp10_enable_battery_reporting(hidpp);
3179 if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE)
3180 hidpp10_query_battery_mileage(hidpp);
3181 else
3182 hidpp10_query_battery_status(hidpp);
3183 } else if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) {
9b9c519f 3184 hidpp20_query_battery_info(hidpp);
9b9c519f 3185 }
7f7ce2a2
BT		 3186 if (hidpp->battery.ps)
3187 power_supply_changed(hidpp->battery.ps);
9b9c519f 3188
4435ff2f
HC		 3189 if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL)
3190 hi_res_scroll_enable(hidpp);
3191
2936836f
BT		 3192 if (!(hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT) || hidpp->delayed_input)
3193 /* if the input nodes are already created, we can stop now */
187f2bba
BT		 3194 return;
3195
c39e3d5f
BT		 3196 input = hidpp_allocate_input(hdev);
3197 if (!input) {
3198 hid_err(hdev, "cannot allocate new input device: %d\n", ret);
3199 return;
3200 }
3201
c39e3d5f
BT		 3202 hidpp_populate_input(hidpp, input, false);
3203
3204 ret = input_register_device(input);
3205 if (ret)
3206 input_free_device(input);
3207
3208 hidpp->delayed_input = input;
3209}
3210
a4bf6153
BT		 3211static DEVICE_ATTR(builtin_power_supply, 0000, NULL, NULL);
3212
3213static struct attribute *sysfs_attrs[] = {
3214 &dev_attr_builtin_power_supply.attr,
3215 NULL
3216};
3217
35a33cb5 3218static const struct attribute_group ps_attribute_group = {
a4bf6153
BT		 3219 .attrs = sysfs_attrs
3220};
3221
fe3ee1ec
BT		 3222static bool hidpp_validate_report(struct hid_device *hdev, int id, int size,
3223 bool optional)
3224{
3225 struct hid_report_enum *re;
3226 struct hid_report *report;
3227
3228 if (id >= HID_MAX_IDS || id < 0) {
3229 hid_err(hdev, "invalid HID report id %u\n", id);
3230 return false;
3231 }
3232
3233 re = &(hdev->report_enum[HID_OUTPUT_REPORT]);
3234 report = re->report_id_hash[id];
3235
3236 if (!report)
3237 return optional;
3238
3239 if (report->field[0]->report_count < size) {
3240 hid_warn(hdev, "not enough values in hidpp report %d\n", id);
3241 return false;
3242 }
3243
3244 return true;
3245}
3246
3247static bool hidpp_validate_device(struct hid_device *hdev)
3248{
3249 return hidpp_validate_report(hdev, REPORT_ID_HIDPP_SHORT,
3250 HIDPP_REPORT_SHORT_LENGTH - 1, false) &&
3251 hidpp_validate_report(hdev, REPORT_ID_HIDPP_LONG,
3252 HIDPP_REPORT_LONG_LENGTH - 1, true) &&
3253 hidpp_validate_report(hdev, REPORT_ID_HIDPP_VERY_LONG,
3254 HIDPP_REPORT_VERY_LONG_LENGTH - 1, true);
3255}
3256
2f31c525
BT		 3257static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
3258{
3259 struct hidpp_device *hidpp;
3260 int ret;
3261 bool connected;
c39e3d5f 3262 unsigned int connect_mask = HID_CONNECT_DEFAULT;
2f31c525 3263
fe3ee1ec
BT		 3264 ret = hid_parse(hdev);
3265 if (ret) {
3266 hid_err(hdev, "%s:parse failed\n", __func__);
3267 return ret;
3268 }
3269
3270 /*
3271 * Make sure the device is HID++ capable, otherwise treat as generic HID
3272 */
3273 if (!hidpp_validate_device(hdev))
3274 return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
3275
2f31c525
BT		 3276 hidpp = devm_kzalloc(&hdev->dev, sizeof(struct hidpp_device),
3277 GFP_KERNEL);
3278 if (!hidpp)
3279 return -ENOMEM;
3280
3281 hidpp->hid_dev = hdev;
005b3f57 3282 hidpp->name = hdev->name;
2f31c525
BT		 3283 hid_set_drvdata(hdev, hidpp);
3284
3285 hidpp->quirks = id->driver_data;
3286
843c624e
BT		 3287 if (id->group == HID_GROUP_LOGITECH_DJ_DEVICE)
3288 hidpp->quirks |= HIDPP_QUIRK_UNIFYING;
3289
9188dbae
BT		 3290 if (disable_raw_mode) {
3291 hidpp->quirks &= ~HIDPP_QUIRK_CLASS_WTP;
580a7e82 3292 hidpp->quirks &= ~HIDPP_QUIRK_NO_HIDINPUT;
9188dbae
BT		 3293 }
3294
2f31c525
BT		 3295 if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
3296 ret = wtp_allocate(hdev, id);
3297 if (ret)
43cd97af 3298 return ret;
8a09b4fa
GB		 3299 } else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) {
3300 ret = m560_allocate(hdev);
3301 if (ret)
43cd97af 3302 return ret;
90cdd986
BT		 3303 } else if (hidpp->quirks & HIDPP_QUIRK_CLASS_K400) {
3304 ret = k400_allocate(hdev);
3305 if (ret)
43cd97af 3306 return ret;
2f31c525
BT		 3307 }
3308
c39e3d5f 3309 INIT_WORK(&hidpp->work, delayed_work_cb);
2f31c525
BT		 3310 mutex_init(&hidpp->send_mutex);
3311 init_waitqueue_head(&hidpp->wait);
3312
a4bf6153
BT		 3313 /* indicates we are handling the battery properties in the kernel */
3314 ret = sysfs_create_group(&hdev->dev.kobj, &ps_attribute_group);
3315 if (ret)
3316 hid_warn(hdev, "Cannot allocate sysfs group for %s\n",
3317 hdev->name);
3318
7bfd2927
SW		 3319 if (hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT)
3320 connect_mask &= ~HID_CONNECT_HIDINPUT;
3321
3322 if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
3323 ret = hid_hw_start(hdev, connect_mask);
3324 if (ret) {
3325 hid_err(hdev, "hw start failed\n");
3326 goto hid_hw_start_fail;
3327 }
3328 ret = hid_hw_open(hdev);
3329 if (ret < 0) {
3330 dev_err(&hdev->dev, "%s:hid_hw_open returned error:%d\n",
3331 __func__, ret);
3332 hid_hw_stop(hdev);
3333 goto hid_hw_start_fail;
3334 }
3335 }
3336
3337
2f31c525
BT		 3338 /* Allow incoming packets */
3339 hid_device_io_start(hdev);
3340
843c624e
BT		 3341 if (hidpp->quirks & HIDPP_QUIRK_UNIFYING)
3342 hidpp_unifying_init(hidpp);
3343
090760d4 3344 connected = hidpp_root_get_protocol_version(hidpp) == 0;
843c624e
BT		 3345 atomic_set(&hidpp->connected, connected);
3346 if (!(hidpp->quirks & HIDPP_QUIRK_UNIFYING)) {
ab94e562 3347 if (!connected) {
b832da56 3348 ret = -ENODEV;
ab94e562 3349 hid_err(hdev, "Device not connected");
7bfd2927 3350 goto hid_hw_open_failed;
ab94e562 3351 }
2f31c525 3352
843c624e
BT		 3353 hidpp_overwrite_name(hdev);
3354 }
33797820 3355
c39e3d5f 3356 if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)) {
2f31c525
BT		 3357 ret = wtp_get_config(hidpp);
3358 if (ret)
7bfd2927 3359 goto hid_hw_open_failed;
7f4b49fe
SW		 3360 } else if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) {
3361 ret = g920_get_config(hidpp);
3362 if (ret)
3363 goto hid_hw_open_failed;
2f31c525
BT		 3364 }
3365
3366 /* Block incoming packets */
3367 hid_device_io_stop(hdev);
3368
7bfd2927
SW		 3369 if (!(hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) {
3370 ret = hid_hw_start(hdev, connect_mask);
3371 if (ret) {
3372 hid_err(hdev, "%s:hid_hw_start returned error\n", __func__);
3373 goto hid_hw_start_fail;
3374 }
2f31c525
BT		 3375 }
3376
6bd4e65d
BT		 3377 /* Allow incoming packets */
3378 hid_device_io_start(hdev);
c39e3d5f 3379
6bd4e65d 3380 hidpp_connect_event(hidpp);
c39e3d5f 3381
2f31c525
BT		 3382 return ret;
3383
7bfd2927
SW		 3384hid_hw_open_failed:
3385 hid_device_io_stop(hdev);
3386 if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
3387 hid_hw_close(hdev);
3388 hid_hw_stop(hdev);
3389 }
2f31c525 3390hid_hw_start_fail:
a4bf6153 3391 sysfs_remove_group(&hdev->dev.kobj, &ps_attribute_group);
c39e3d5f 3392 cancel_work_sync(&hidpp->work);
2f31c525 3393 mutex_destroy(&hidpp->send_mutex);
2f31c525
BT		 3394 return ret;
3395}
3396
3397static void hidpp_remove(struct hid_device *hdev)
3398{
3399 struct hidpp_device *hidpp = hid_get_drvdata(hdev);
3400
fe3ee1ec
BT		 3401 if (!hidpp)
3402 return hid_hw_stop(hdev);
3403
a4bf6153
BT		 3404 sysfs_remove_group(&hdev->dev.kobj, &ps_attribute_group);
3405
7f4b49fe 3406 if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
ff21a635 3407 hidpp_ff_deinit(hdev);
7bfd2927 3408 hid_hw_close(hdev);
7f4b49fe 3409 }
7bfd2927 3410 hid_hw_stop(hdev);
c39e3d5f 3411 cancel_work_sync(&hidpp->work);
2f31c525 3412 mutex_destroy(&hidpp->send_mutex);
2f31c525
BT		 3413}
3414
4435ff2f
HC		 3415#define LDJ_DEVICE(product) \
3416 HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE, \
3417 USB_VENDOR_ID_LOGITECH, (product))
3418
2f31c525 3419static const struct hid_device_id hidpp_devices[] = {
57ac86cf 3420 { /* wireless touchpad */
16767229 3421 LDJ_DEVICE(0x4011),
57ac86cf
BT		 3422 .driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT |
3423 HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS },
586bdc4e 3424 { /* wireless touchpad T650 */
16767229 3425 LDJ_DEVICE(0x4101),
586bdc4e 3426 .driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT },
2f31c525
BT		 3427 { /* wireless touchpad T651 */
3428 HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
3429 USB_DEVICE_ID_LOGITECH_T651),
3430 .driver_data = HIDPP_QUIRK_CLASS_WTP },
4435ff2f
HC		 3431 { /* Mouse Logitech Anywhere MX */
3432 LDJ_DEVICE(0x1017), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
3433 { /* Mouse Logitech Cube */
3434 LDJ_DEVICE(0x4010), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2120 },
3435 { /* Mouse Logitech M335 */
3436 LDJ_DEVICE(0x4050), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
3437 { /* Mouse Logitech M515 */
3438 LDJ_DEVICE(0x4007), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2120 },
8a09b4fa 3439 { /* Mouse logitech M560 */
4435ff2f
HC		 3440 LDJ_DEVICE(0x402d),
3441 .driver_data = HIDPP_QUIRK_DELAYED_INIT | HIDPP_QUIRK_CLASS_M560
3442 | HIDPP_QUIRK_HI_RES_SCROLL_X2120 },
3443 { /* Mouse Logitech M705 (firmware RQM17) */
3444 LDJ_DEVICE(0x101b), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
3445 { /* Mouse Logitech M705 (firmware RQM67) */
3446 LDJ_DEVICE(0x406d), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
3447 { /* Mouse Logitech M720 */
3448 LDJ_DEVICE(0x405e), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
3449 { /* Mouse Logitech MX Anywhere 2 */
3450 LDJ_DEVICE(0x404a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
3451 { LDJ_DEVICE(0xb013), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
3452 { LDJ_DEVICE(0xb018), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
3453 { LDJ_DEVICE(0xb01f), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
3454 { /* Mouse Logitech MX Anywhere 2S */
3455 LDJ_DEVICE(0x406a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
3456 { /* Mouse Logitech MX Master */
3457 LDJ_DEVICE(0x4041), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
3458 { LDJ_DEVICE(0x4060), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
3459 { LDJ_DEVICE(0x4071), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
3460 { /* Mouse Logitech MX Master 2S */
3461 LDJ_DEVICE(0x4069), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
3462 { /* Mouse Logitech Performance MX */
3463 LDJ_DEVICE(0x101a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
90cdd986 3464 { /* Keyboard logitech K400 */
16767229 3465 LDJ_DEVICE(0x4024),
6bd4e65d 3466 .driver_data = HIDPP_QUIRK_CLASS_K400 },
696ecef9 3467 { /* Solar Keyboard Logitech K750 */
16767229 3468 LDJ_DEVICE(0x4002),
696ecef9 3469 .driver_data = HIDPP_QUIRK_CLASS_K750 },
ab94e562 3470
16767229 3471 { LDJ_DEVICE(HID_ANY_ID) },
7bfd2927
SW		 3472
3473 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL),
3474 .driver_data = HIDPP_QUIRK_CLASS_G920 | HIDPP_QUIRK_FORCE_OUTPUT_REPORTS},
2f31c525
BT		 3475 {}
3476};
3477
3478MODULE_DEVICE_TABLE(hid, hidpp_devices);
3479
4435ff2f
HC		 3480static const struct hid_usage_id hidpp_usages[] = {
3481 { HID_GD_WHEEL, EV_REL, REL_WHEEL_HI_RES },
3482 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
3483};
3484
2f31c525
BT		 3485static struct hid_driver hidpp_driver = {
3486 .name = "logitech-hidpp-device",
3487 .id_table = hidpp_devices,
3488 .probe = hidpp_probe,
3489 .remove = hidpp_remove,
3490 .raw_event = hidpp_raw_event,
4435ff2f
HC		 3491 .usage_table = hidpp_usages,
3492 .event = hidpp_event,
2f31c525
BT		 3493 .input_configured = hidpp_input_configured,
3494 .input_mapping = hidpp_input_mapping,
0b1804e3 3495 .input_mapped = hidpp_input_mapped,
2f31c525
BT		 3496};
3497
3498module_hid_driver(hidpp_driver);
Linux 6.x block layer and io_uring tree(s)