1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * HID driver for Lenovo:
4 * - ThinkPad USB Keyboard with TrackPoint (tpkbd)
5 * - ThinkPad Compact Bluetooth Keyboard with TrackPoint (cptkbd)
6 * - ThinkPad Compact USB Keyboard with TrackPoint (cptkbd)
7 * - ThinkPad TrackPoint Keyboard II USB/Bluetooth (cptkbd/tpIIkbd)
8 *
9 * Copyright (c) 2012 Bernhard Seibold
10 * Copyright (c) 2014 Jamie Lentin <jm@lentin.co.uk>
11 *
12 * Linux IBM/Lenovo Scrollpoint mouse driver:
13 * - IBM Scrollpoint III
14 * - IBM Scrollpoint Pro
15 * - IBM Scrollpoint Optical
16 * - IBM Scrollpoint Optical 800dpi
17 * - IBM Scrollpoint Optical 800dpi Pro
18 * - Lenovo Scrollpoint Optical
19 *
20 * Copyright (c) 2012 Peter De Wachter <pdewacht@gmail.com>
21 * Copyright (c) 2018 Peter Ganzhorn <peter.ganzhorn@gmail.com>
22 */
23
24 /*
25 */
26
27 #include <linux/module.h>
28 #include <linux/sysfs.h>
29 #include <linux/device.h>
30 #include <linux/hid.h>
31 #include <linux/input.h>
32 #include <linux/leds.h>
33 #include <linux/workqueue.h>
34
35 #include "hid-ids.h"
36
37 /* Userspace expects F20 for mic-mute KEY_MICMUTE does not work */
38 #define LENOVO_KEY_MICMUTE KEY_F20
39
40 struct lenovo_drvdata {
41 u8 led_report[3]; /* Must be first for proper alignment */
42 int led_state;
43 struct mutex led_report_mutex;
44 struct led_classdev led_mute;
45 struct led_classdev led_micmute;
46 struct work_struct fn_lock_sync_work;
47 struct hid_device *hdev;
48 int press_to_select;
49 int dragging;
50 int release_to_select;
51 int select_right;
52 int sensitivity;
53 int press_speed;
54 /* 0: Up
55 * 1: Down (undecided)
56 * 2: Scrolling
57 */
58 u8 middlebutton_state;
59 bool fn_lock;
60 bool middleclick_workaround_cptkbd;
61 };
62
63 #define map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
64
65 #define TP10UBKBD_LED_OUTPUT_REPORT 9
66
67 #define TP10UBKBD_FN_LOCK_LED 0x54
68 #define TP10UBKBD_MUTE_LED 0x64
69 #define TP10UBKBD_MICMUTE_LED 0x74
70
71 #define TP10UBKBD_LED_OFF 1
72 #define TP10UBKBD_LED_ON 2
73
lenovo_led_set_tp10ubkbd(struct hid_device * hdev,u8 led_code,enum led_brightness value)74 static int lenovo_led_set_tp10ubkbd(struct hid_device *hdev, u8 led_code,
75 enum led_brightness value)
76 {
77 struct lenovo_drvdata *data = hid_get_drvdata(hdev);
78 int ret;
79
80 mutex_lock(&data->led_report_mutex);
81
82 data->led_report[0] = TP10UBKBD_LED_OUTPUT_REPORT;
83 data->led_report[1] = led_code;
84 data->led_report[2] = value ? TP10UBKBD_LED_ON : TP10UBKBD_LED_OFF;
85 ret = hid_hw_raw_request(hdev, data->led_report[0], data->led_report, 3,
86 HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
87 if (ret != 3) {
88 if (ret != -ENODEV)
89 hid_err(hdev, "Set LED output report error: %d\n", ret);
90
91 ret = ret < 0 ? ret : -EIO;
92 } else {
93 ret = 0;
94 }
95
96 mutex_unlock(&data->led_report_mutex);
97
98 return ret;
99 }
100
lenovo_tp10ubkbd_sync_fn_lock(struct work_struct * work)101 static void lenovo_tp10ubkbd_sync_fn_lock(struct work_struct *work)
102 {
103 struct lenovo_drvdata *data =
104 container_of(work, struct lenovo_drvdata, fn_lock_sync_work);
105
106 lenovo_led_set_tp10ubkbd(data->hdev, TP10UBKBD_FN_LOCK_LED,
107 data->fn_lock);
108 }
109
110 static const __u8 lenovo_pro_dock_need_fixup_collection[] = {
111 0x05, 0x88, /* Usage Page (Vendor Usage Page 0x88) */
112 0x09, 0x01, /* Usage (Vendor Usage 0x01) */
113 0xa1, 0x01, /* Collection (Application) */
114 0x85, 0x04, /* Report ID (4) */
115 0x19, 0x00, /* Usage Minimum (0) */
116 0x2a, 0xff, 0xff, /* Usage Maximum (65535) */
117 };
118
119 /* Broken ThinkPad TrackPoint II collection (Bluetooth mode) */
120 static const __u8 lenovo_tpIIbtkbd_need_fixup_collection[] = {
121 0x06, 0x00, 0xFF, /* Usage Page (Vendor Defined 0xFF00) */
122 0x09, 0x01, /* Usage (0x01) */
123 0xA1, 0x01, /* Collection (Application) */
124 0x85, 0x05, /* Report ID (5) */
125 0x1A, 0xF1, 0x00, /* Usage Minimum (0xF1) */
126 0x2A, 0xFC, 0x00, /* Usage Maximum (0xFC) */
127 0x15, 0x00, /* Logical Minimum (0) */
128 0x25, 0x01, /* Logical Maximum (1) */
129 0x75, 0x01, /* Report Size (1) */
130 0x95, 0x0D, /* Report Count (13) */
131 0x81, 0x02, /* Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) */
132 0x95, 0x03, /* Report Count (3) */
133 0x81, 0x01, /* Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) */
134 };
135
lenovo_report_fixup(struct hid_device * hdev,__u8 * rdesc,unsigned int * rsize)136 static __u8 *lenovo_report_fixup(struct hid_device *hdev, __u8 *rdesc,
137 unsigned int *rsize)
138 {
139 switch (hdev->product) {
140 case USB_DEVICE_ID_LENOVO_TPPRODOCK:
141 /* the fixups that need to be done:
142 * - get a reasonable usage max for the vendor collection
143 * 0x8801 from the report ID 4
144 */
145 if (*rsize >= 153 &&
146 memcmp(&rdesc[140], lenovo_pro_dock_need_fixup_collection,
147 sizeof(lenovo_pro_dock_need_fixup_collection)) == 0) {
148 rdesc[151] = 0x01;
149 rdesc[152] = 0x00;
150 }
151 break;
152 case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
153 if (*rsize >= 263 &&
154 memcmp(&rdesc[234], lenovo_tpIIbtkbd_need_fixup_collection,
155 sizeof(lenovo_tpIIbtkbd_need_fixup_collection)) == 0) {
156 rdesc[244] = 0x00; /* usage minimum = 0x00 */
157 rdesc[247] = 0xff; /* usage maximum = 0xff */
158 rdesc[252] = 0xff; /* logical maximum = 0xff */
159 rdesc[254] = 0x08; /* report size = 0x08 */
160 rdesc[256] = 0x01; /* report count = 0x01 */
161 rdesc[258] = 0x00; /* input = 0x00 */
162 rdesc[260] = 0x01; /* report count (2) = 0x01 */
163 }
164 break;
165 }
166 return rdesc;
167 }
168
lenovo_input_mapping_tpkbd(struct hid_device * hdev,struct hid_input * hi,struct hid_field * field,struct hid_usage * usage,unsigned long ** bit,int * max)169 static int lenovo_input_mapping_tpkbd(struct hid_device *hdev,
170 struct hid_input *hi, struct hid_field *field,
171 struct hid_usage *usage, unsigned long **bit, int *max)
172 {
173 if (usage->hid == (HID_UP_BUTTON | 0x0010)) {
174 /* This sub-device contains trackpoint, mark it */
175 hid_set_drvdata(hdev, (void *)1);
176 map_key_clear(LENOVO_KEY_MICMUTE);
177 return 1;
178 }
179 return 0;
180 }
181
lenovo_input_mapping_cptkbd(struct hid_device * hdev,struct hid_input * hi,struct hid_field * field,struct hid_usage * usage,unsigned long ** bit,int * max)182 static int lenovo_input_mapping_cptkbd(struct hid_device *hdev,
183 struct hid_input *hi, struct hid_field *field,
184 struct hid_usage *usage, unsigned long **bit, int *max)
185 {
186 /* HID_UP_LNVENDOR = USB, HID_UP_MSVENDOR = BT */
187 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR ||
188 (usage->hid & HID_USAGE_PAGE) == HID_UP_LNVENDOR) {
189 switch (usage->hid & HID_USAGE) {
190 case 0x00f1: /* Fn-F4: Mic mute */
191 map_key_clear(LENOVO_KEY_MICMUTE);
192 return 1;
193 case 0x00f2: /* Fn-F5: Brightness down */
194 map_key_clear(KEY_BRIGHTNESSDOWN);
195 return 1;
196 case 0x00f3: /* Fn-F6: Brightness up */
197 map_key_clear(KEY_BRIGHTNESSUP);
198 return 1;
199 case 0x00f4: /* Fn-F7: External display (projector) */
200 map_key_clear(KEY_SWITCHVIDEOMODE);
201 return 1;
202 case 0x00f5: /* Fn-F8: Wireless */
203 map_key_clear(KEY_WLAN);
204 return 1;
205 case 0x00f6: /* Fn-F9: Control panel */
206 map_key_clear(KEY_CONFIG);
207 return 1;
208 case 0x00f8: /* Fn-F11: View open applications (3 boxes) */
209 map_key_clear(KEY_SCALE);
210 return 1;
211 case 0x00f9: /* Fn-F12: Open My computer (6 boxes) USB-only */
212 /* NB: This mapping is invented in raw_event below */
213 map_key_clear(KEY_FILE);
214 return 1;
215 case 0x00fa: /* Fn-Esc: Fn-lock toggle */
216 map_key_clear(KEY_FN_ESC);
217 return 1;
218 case 0x00fb: /* Middle mouse button (in native mode) */
219 map_key_clear(BTN_MIDDLE);
220 return 1;
221 }
222 }
223
224 /* Compatibility middle/wheel mappings should be ignored */
225 if (usage->hid == HID_GD_WHEEL)
226 return -1;
227 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON &&
228 (usage->hid & HID_USAGE) == 0x003)
229 return -1;
230 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER &&
231 (usage->hid & HID_USAGE) == 0x238)
232 return -1;
233
234 /* Map wheel emulation reports: 0xffa1 = USB, 0xff10 = BT */
235 if ((usage->hid & HID_USAGE_PAGE) == 0xff100000 ||
236 (usage->hid & HID_USAGE_PAGE) == 0xffa10000) {
237 field->flags |= HID_MAIN_ITEM_RELATIVE | HID_MAIN_ITEM_VARIABLE;
238 field->logical_minimum = -127;
239 field->logical_maximum = 127;
240
241 switch (usage->hid & HID_USAGE) {
242 case 0x0000:
243 hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
244 return 1;
245 case 0x0001:
246 hid_map_usage(hi, usage, bit, max, EV_REL, REL_WHEEL);
247 return 1;
248 default:
249 return -1;
250 }
251 }
252
253 return 0;
254 }
255
lenovo_input_mapping_tpIIkbd(struct hid_device * hdev,struct hid_input * hi,struct hid_field * field,struct hid_usage * usage,unsigned long ** bit,int * max)256 static int lenovo_input_mapping_tpIIkbd(struct hid_device *hdev,
257 struct hid_input *hi, struct hid_field *field,
258 struct hid_usage *usage, unsigned long **bit, int *max)
259 {
260 /*
261 * 0xff0a0000 = USB, HID_UP_MSVENDOR = BT.
262 *
263 * In BT mode, there are two HID_UP_MSVENDOR pages.
264 * Use only the page that contains report ID == 5.
265 */
266 if (((usage->hid & HID_USAGE_PAGE) == 0xff0a0000 ||
267 (usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) &&
268 field->report->id == 5) {
269 switch (usage->hid & HID_USAGE) {
270 case 0x00bb: /* Fn-F4: Mic mute */
271 map_key_clear(LENOVO_KEY_MICMUTE);
272 return 1;
273 case 0x00c3: /* Fn-F5: Brightness down */
274 map_key_clear(KEY_BRIGHTNESSDOWN);
275 return 1;
276 case 0x00c4: /* Fn-F6: Brightness up */
277 map_key_clear(KEY_BRIGHTNESSUP);
278 return 1;
279 case 0x00c1: /* Fn-F8: Notification center */
280 map_key_clear(KEY_NOTIFICATION_CENTER);
281 return 1;
282 case 0x00bc: /* Fn-F9: Control panel */
283 map_key_clear(KEY_CONFIG);
284 return 1;
285 case 0x00b6: /* Fn-F10: Bluetooth */
286 map_key_clear(KEY_BLUETOOTH);
287 return 1;
288 case 0x00b7: /* Fn-F11: Keyboard config */
289 map_key_clear(KEY_KEYBOARD);
290 return 1;
291 case 0x00b8: /* Fn-F12: User function */
292 map_key_clear(KEY_PROG1);
293 return 1;
294 case 0x00b9: /* Fn-PrtSc: Snipping tool */
295 map_key_clear(KEY_SELECTIVE_SCREENSHOT);
296 return 1;
297 case 0x00b5: /* Fn-Esc: Fn-lock toggle */
298 map_key_clear(KEY_FN_ESC);
299 return 1;
300 }
301 }
302
303 if ((usage->hid & HID_USAGE_PAGE) == 0xffa00000) {
304 switch (usage->hid & HID_USAGE) {
305 case 0x00fb: /* Middle mouse (in native USB mode) */
306 map_key_clear(BTN_MIDDLE);
307 return 1;
308 }
309 }
310
311 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR &&
312 field->report->id == 21) {
313 switch (usage->hid & HID_USAGE) {
314 case 0x0004: /* Middle mouse (in native Bluetooth mode) */
315 map_key_clear(BTN_MIDDLE);
316 return 1;
317 }
318 }
319
320 /* Compatibility middle/wheel mappings should be ignored */
321 if (usage->hid == HID_GD_WHEEL)
322 return -1;
323 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON &&
324 (usage->hid & HID_USAGE) == 0x003)
325 return -1;
326 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER &&
327 (usage->hid & HID_USAGE) == 0x238)
328 return -1;
329
330 /* Map wheel emulation reports: 0xff10 */
331 if ((usage->hid & HID_USAGE_PAGE) == 0xff100000) {
332 field->flags |= HID_MAIN_ITEM_RELATIVE | HID_MAIN_ITEM_VARIABLE;
333 field->logical_minimum = -127;
334 field->logical_maximum = 127;
335
336 switch (usage->hid & HID_USAGE) {
337 case 0x0000:
338 hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
339 return 1;
340 case 0x0001:
341 hid_map_usage(hi, usage, bit, max, EV_REL, REL_WHEEL);
342 return 1;
343 default:
344 return -1;
345 }
346 }
347
348 return 0;
349 }
350
lenovo_input_mapping_scrollpoint(struct hid_device * hdev,struct hid_input * hi,struct hid_field * field,struct hid_usage * usage,unsigned long ** bit,int * max)351 static int lenovo_input_mapping_scrollpoint(struct hid_device *hdev,
352 struct hid_input *hi, struct hid_field *field,
353 struct hid_usage *usage, unsigned long **bit, int *max)
354 {
355 if (usage->hid == HID_GD_Z) {
356 hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
357 return 1;
358 }
359 return 0;
360 }
361
lenovo_input_mapping_tp10_ultrabook_kbd(struct hid_device * hdev,struct hid_input * hi,struct hid_field * field,struct hid_usage * usage,unsigned long ** bit,int * max)362 static int lenovo_input_mapping_tp10_ultrabook_kbd(struct hid_device *hdev,
363 struct hid_input *hi, struct hid_field *field,
364 struct hid_usage *usage, unsigned long **bit, int *max)
365 {
366 /*
367 * The ThinkPad 10 Ultrabook Keyboard uses 0x000c0001 usage for
368 * a bunch of keys which have no standard consumer page code.
369 */
370 if (usage->hid == 0x000c0001) {
371 switch (usage->usage_index) {
372 case 8: /* Fn-Esc: Fn-lock toggle */
373 map_key_clear(KEY_FN_ESC);
374 return 1;
375 case 9: /* Fn-F4: Mic mute */
376 map_key_clear(LENOVO_KEY_MICMUTE);
377 return 1;
378 case 10: /* Fn-F7: Control panel */
379 map_key_clear(KEY_CONFIG);
380 return 1;
381 case 11: /* Fn-F8: Search (magnifier glass) */
382 map_key_clear(KEY_SEARCH);
383 return 1;
384 case 12: /* Fn-F10: Open My computer (6 boxes) */
385 map_key_clear(KEY_FILE);
386 return 1;
387 }
388 }
389
390 /*
391 * The Ultrabook Keyboard sends a spurious F23 key-press when resuming
392 * from suspend and it does not actually have a F23 key, ignore it.
393 */
394 if (usage->hid == 0x00070072)
395 return -1;
396
397 return 0;
398 }
399
lenovo_input_mapping_x1_tab_kbd(struct hid_device * hdev,struct hid_input * hi,struct hid_field * field,struct hid_usage * usage,unsigned long ** bit,int * max)400 static int lenovo_input_mapping_x1_tab_kbd(struct hid_device *hdev,
401 struct hid_input *hi, struct hid_field *field,
402 struct hid_usage *usage, unsigned long **bit, int *max)
403 {
404 /*
405 * The ThinkPad X1 Tablet Thin Keyboard uses 0x000c0001 usage for
406 * a bunch of keys which have no standard consumer page code.
407 */
408 if (usage->hid == 0x000c0001) {
409 switch (usage->usage_index) {
410 case 0: /* Fn-F10: Enable/disable bluetooth */
411 map_key_clear(KEY_BLUETOOTH);
412 return 1;
413 case 1: /* Fn-F11: Keyboard settings */
414 map_key_clear(KEY_KEYBOARD);
415 return 1;
416 case 2: /* Fn-F12: User function / Cortana */
417 map_key_clear(KEY_MACRO1);
418 return 1;
419 case 3: /* Fn-PrtSc: Snipping tool */
420 map_key_clear(KEY_SELECTIVE_SCREENSHOT);
421 return 1;
422 case 8: /* Fn-Esc: Fn-lock toggle */
423 map_key_clear(KEY_FN_ESC);
424 return 1;
425 case 9: /* Fn-F4: Mute/unmute microphone */
426 map_key_clear(KEY_MICMUTE);
427 return 1;
428 case 10: /* Fn-F9: Settings */
429 map_key_clear(KEY_CONFIG);
430 return 1;
431 case 13: /* Fn-F7: Manage external displays */
432 map_key_clear(KEY_SWITCHVIDEOMODE);
433 return 1;
434 case 14: /* Fn-F8: Enable/disable wifi */
435 map_key_clear(KEY_WLAN);
436 return 1;
437 }
438 }
439
440 if (usage->hid == (HID_UP_KEYBOARD | 0x009a)) {
441 map_key_clear(KEY_SYSRQ);
442 return 1;
443 }
444
445 return 0;
446 }
447
lenovo_input_mapping(struct hid_device * hdev,struct hid_input * hi,struct hid_field * field,struct hid_usage * usage,unsigned long ** bit,int * max)448 static int lenovo_input_mapping(struct hid_device *hdev,
449 struct hid_input *hi, struct hid_field *field,
450 struct hid_usage *usage, unsigned long **bit, int *max)
451 {
452 switch (hdev->product) {
453 case USB_DEVICE_ID_LENOVO_TPKBD:
454 return lenovo_input_mapping_tpkbd(hdev, hi, field,
455 usage, bit, max);
456 case USB_DEVICE_ID_LENOVO_CUSBKBD:
457 case USB_DEVICE_ID_LENOVO_CBTKBD:
458 return lenovo_input_mapping_cptkbd(hdev, hi, field,
459 usage, bit, max);
460 case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
461 case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
462 return lenovo_input_mapping_tpIIkbd(hdev, hi, field,
463 usage, bit, max);
464 case USB_DEVICE_ID_IBM_SCROLLPOINT_III:
465 case USB_DEVICE_ID_IBM_SCROLLPOINT_PRO:
466 case USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL:
467 case USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL:
468 case USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO:
469 case USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL:
470 return lenovo_input_mapping_scrollpoint(hdev, hi, field,
471 usage, bit, max);
472 case USB_DEVICE_ID_LENOVO_TP10UBKBD:
473 return lenovo_input_mapping_tp10_ultrabook_kbd(hdev, hi, field,
474 usage, bit, max);
475 case USB_DEVICE_ID_LENOVO_X1_TAB:
476 return lenovo_input_mapping_x1_tab_kbd(hdev, hi, field, usage, bit, max);
477 default:
478 return 0;
479 }
480 }
481
482 #undef map_key_clear
483
484 /* Send a config command to the keyboard */
lenovo_send_cmd_cptkbd(struct hid_device * hdev,unsigned char byte2,unsigned char byte3)485 static int lenovo_send_cmd_cptkbd(struct hid_device *hdev,
486 unsigned char byte2, unsigned char byte3)
487 {
488 int ret;
489 unsigned char *buf;
490
491 buf = kzalloc(3, GFP_KERNEL);
492 if (!buf)
493 return -ENOMEM;
494
495 /*
496 * Feature report 0x13 is used for USB,
497 * output report 0x18 is used for Bluetooth.
498 * buf[0] is ignored by hid_hw_raw_request.
499 */
500 buf[0] = 0x18;
501 buf[1] = byte2;
502 buf[2] = byte3;
503
504 switch (hdev->product) {
505 case USB_DEVICE_ID_LENOVO_CUSBKBD:
506 case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
507 ret = hid_hw_raw_request(hdev, 0x13, buf, 3,
508 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
509 break;
510 case USB_DEVICE_ID_LENOVO_CBTKBD:
511 case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
512 ret = hid_hw_output_report(hdev, buf, 3);
513 break;
514 default:
515 ret = -EINVAL;
516 break;
517 }
518
519 kfree(buf);
520
521 return ret < 0 ? ret : 0; /* BT returns 0, USB returns sizeof(buf) */
522 }
523
lenovo_features_set_cptkbd(struct hid_device * hdev)524 static void lenovo_features_set_cptkbd(struct hid_device *hdev)
525 {
526 int ret;
527 struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
528
529 /*
530 * Tell the keyboard a driver understands it, and turn F7, F9, F11 into
531 * regular keys
532 */
533 ret = lenovo_send_cmd_cptkbd(hdev, 0x01, 0x03);
534 if (ret)
535 hid_warn(hdev, "Failed to switch F7/9/11 mode: %d\n", ret);
536
537 /* Switch middle button to native mode */
538 ret = lenovo_send_cmd_cptkbd(hdev, 0x09, 0x01);
539 if (ret)
540 hid_warn(hdev, "Failed to switch middle button: %d\n", ret);
541
542 ret = lenovo_send_cmd_cptkbd(hdev, 0x05, cptkbd_data->fn_lock);
543 if (ret)
544 hid_err(hdev, "Fn-lock setting failed: %d\n", ret);
545
546 ret = lenovo_send_cmd_cptkbd(hdev, 0x02, cptkbd_data->sensitivity);
547 if (ret)
548 hid_err(hdev, "Sensitivity setting failed: %d\n", ret);
549 }
550
attr_fn_lock_show(struct device * dev,struct device_attribute * attr,char * buf)551 static ssize_t attr_fn_lock_show(struct device *dev,
552 struct device_attribute *attr,
553 char *buf)
554 {
555 struct hid_device *hdev = to_hid_device(dev);
556 struct lenovo_drvdata *data = hid_get_drvdata(hdev);
557
558 return snprintf(buf, PAGE_SIZE, "%u\n", data->fn_lock);
559 }
560
attr_fn_lock_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)561 static ssize_t attr_fn_lock_store(struct device *dev,
562 struct device_attribute *attr,
563 const char *buf,
564 size_t count)
565 {
566 struct hid_device *hdev = to_hid_device(dev);
567 struct lenovo_drvdata *data = hid_get_drvdata(hdev);
568 int value, ret;
569
570 if (kstrtoint(buf, 10, &value))
571 return -EINVAL;
572 if (value < 0 || value > 1)
573 return -EINVAL;
574
575 data->fn_lock = !!value;
576
577 switch (hdev->product) {
578 case USB_DEVICE_ID_LENOVO_CUSBKBD:
579 case USB_DEVICE_ID_LENOVO_CBTKBD:
580 case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
581 case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
582 lenovo_features_set_cptkbd(hdev);
583 break;
584 case USB_DEVICE_ID_LENOVO_TP10UBKBD:
585 case USB_DEVICE_ID_LENOVO_X1_TAB:
586 ret = lenovo_led_set_tp10ubkbd(hdev, TP10UBKBD_FN_LOCK_LED, value);
587 if (ret)
588 return ret;
589 break;
590 }
591
592 return count;
593 }
594
attr_sensitivity_show_cptkbd(struct device * dev,struct device_attribute * attr,char * buf)595 static ssize_t attr_sensitivity_show_cptkbd(struct device *dev,
596 struct device_attribute *attr,
597 char *buf)
598 {
599 struct hid_device *hdev = to_hid_device(dev);
600 struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
601
602 return snprintf(buf, PAGE_SIZE, "%u\n",
603 cptkbd_data->sensitivity);
604 }
605
attr_sensitivity_store_cptkbd(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)606 static ssize_t attr_sensitivity_store_cptkbd(struct device *dev,
607 struct device_attribute *attr,
608 const char *buf,
609 size_t count)
610 {
611 struct hid_device *hdev = to_hid_device(dev);
612 struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
613 int value;
614
615 if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
616 return -EINVAL;
617
618 cptkbd_data->sensitivity = value;
619 lenovo_features_set_cptkbd(hdev);
620
621 return count;
622 }
623
attr_middleclick_workaround_show_cptkbd(struct device * dev,struct device_attribute * attr,char * buf)624 static ssize_t attr_middleclick_workaround_show_cptkbd(struct device *dev,
625 struct device_attribute *attr,
626 char *buf)
627 {
628 struct hid_device *hdev = to_hid_device(dev);
629 struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
630
631 return snprintf(buf, PAGE_SIZE, "%u\n",
632 cptkbd_data->middleclick_workaround_cptkbd);
633 }
634
attr_middleclick_workaround_store_cptkbd(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)635 static ssize_t attr_middleclick_workaround_store_cptkbd(struct device *dev,
636 struct device_attribute *attr,
637 const char *buf,
638 size_t count)
639 {
640 struct hid_device *hdev = to_hid_device(dev);
641 struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
642 int value;
643
644 if (kstrtoint(buf, 10, &value))
645 return -EINVAL;
646 if (value < 0 || value > 1)
647 return -EINVAL;
648
649 cptkbd_data->middleclick_workaround_cptkbd = !!value;
650
651 return count;
652 }
653
654
655 static struct device_attribute dev_attr_fn_lock =
656 __ATTR(fn_lock, S_IWUSR | S_IRUGO,
657 attr_fn_lock_show,
658 attr_fn_lock_store);
659
660 static struct device_attribute dev_attr_sensitivity_cptkbd =
661 __ATTR(sensitivity, S_IWUSR | S_IRUGO,
662 attr_sensitivity_show_cptkbd,
663 attr_sensitivity_store_cptkbd);
664
665 static struct device_attribute dev_attr_middleclick_workaround_cptkbd =
666 __ATTR(middleclick_workaround, S_IWUSR | S_IRUGO,
667 attr_middleclick_workaround_show_cptkbd,
668 attr_middleclick_workaround_store_cptkbd);
669
670
671 static struct attribute *lenovo_attributes_cptkbd[] = {
672 &dev_attr_fn_lock.attr,
673 &dev_attr_sensitivity_cptkbd.attr,
674 &dev_attr_middleclick_workaround_cptkbd.attr,
675 NULL
676 };
677
678 static const struct attribute_group lenovo_attr_group_cptkbd = {
679 .attrs = lenovo_attributes_cptkbd,
680 };
681
lenovo_raw_event(struct hid_device * hdev,struct hid_report * report,u8 * data,int size)682 static int lenovo_raw_event(struct hid_device *hdev,
683 struct hid_report *report, u8 *data, int size)
684 {
685 /*
686 * Compact USB keyboard's Fn-F12 report holds down many other keys, and
687 * its own key is outside the usage page range. Remove extra
688 * keypresses and remap to inside usage page.
689 */
690 if (unlikely(hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD
691 && size == 3
692 && data[0] == 0x15
693 && data[1] == 0x94
694 && data[2] == 0x01)) {
695 data[1] = 0x00;
696 data[2] = 0x01;
697 }
698
699 return 0;
700 }
701
lenovo_event_tp10ubkbd(struct hid_device * hdev,struct hid_field * field,struct hid_usage * usage,__s32 value)702 static int lenovo_event_tp10ubkbd(struct hid_device *hdev,
703 struct hid_field *field, struct hid_usage *usage, __s32 value)
704 {
705 struct lenovo_drvdata *data = hid_get_drvdata(hdev);
706
707 if (usage->type == EV_KEY && usage->code == KEY_FN_ESC && value == 1) {
708 /*
709 * The user has toggled the Fn-lock state. Toggle our own
710 * cached value of it and sync our value to the keyboard to
711 * ensure things are in sync (the sycning should be a no-op).
712 */
713 data->fn_lock = !data->fn_lock;
714 schedule_work(&data->fn_lock_sync_work);
715 }
716
717 return 0;
718 }
719
lenovo_event_cptkbd(struct hid_device * hdev,struct hid_field * field,struct hid_usage * usage,__s32 value)720 static int lenovo_event_cptkbd(struct hid_device *hdev,
721 struct hid_field *field, struct hid_usage *usage, __s32 value)
722 {
723 struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
724
725 if (cptkbd_data->middleclick_workaround_cptkbd) {
726 /* "wheel" scroll events */
727 if (usage->type == EV_REL && (usage->code == REL_WHEEL ||
728 usage->code == REL_HWHEEL)) {
729 /* Scroll events disable middle-click event */
730 cptkbd_data->middlebutton_state = 2;
731 return 0;
732 }
733
734 /* Middle click events */
735 if (usage->type == EV_KEY && usage->code == BTN_MIDDLE) {
736 if (value == 1) {
737 cptkbd_data->middlebutton_state = 1;
738 } else if (value == 0) {
739 if (cptkbd_data->middlebutton_state == 1) {
740 /* No scrolling inbetween, send middle-click */
741 input_event(field->hidinput->input,
742 EV_KEY, BTN_MIDDLE, 1);
743 input_sync(field->hidinput->input);
744 input_event(field->hidinput->input,
745 EV_KEY, BTN_MIDDLE, 0);
746 input_sync(field->hidinput->input);
747 }
748 cptkbd_data->middlebutton_state = 0;
749 }
750 return 1;
751 }
752 }
753
754 if (usage->type == EV_KEY && usage->code == KEY_FN_ESC && value == 1) {
755 /*
756 * The user has toggled the Fn-lock state. Toggle our own
757 * cached value of it and sync our value to the keyboard to
758 * ensure things are in sync (the syncing should be a no-op).
759 */
760 cptkbd_data->fn_lock = !cptkbd_data->fn_lock;
761 }
762
763 return 0;
764 }
765
lenovo_event(struct hid_device * hdev,struct hid_field * field,struct hid_usage * usage,__s32 value)766 static int lenovo_event(struct hid_device *hdev, struct hid_field *field,
767 struct hid_usage *usage, __s32 value)
768 {
769 if (!hid_get_drvdata(hdev))
770 return 0;
771
772 switch (hdev->product) {
773 case USB_DEVICE_ID_LENOVO_CUSBKBD:
774 case USB_DEVICE_ID_LENOVO_CBTKBD:
775 case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
776 case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
777 return lenovo_event_cptkbd(hdev, field, usage, value);
778 case USB_DEVICE_ID_LENOVO_TP10UBKBD:
779 case USB_DEVICE_ID_LENOVO_X1_TAB:
780 return lenovo_event_tp10ubkbd(hdev, field, usage, value);
781 default:
782 return 0;
783 }
784 }
785
lenovo_features_set_tpkbd(struct hid_device * hdev)786 static int lenovo_features_set_tpkbd(struct hid_device *hdev)
787 {
788 struct hid_report *report;
789 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
790
791 report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[4];
792
793 report->field[0]->value[0] = data_pointer->press_to_select ? 0x01 : 0x02;
794 report->field[0]->value[0] |= data_pointer->dragging ? 0x04 : 0x08;
795 report->field[0]->value[0] |= data_pointer->release_to_select ? 0x10 : 0x20;
796 report->field[0]->value[0] |= data_pointer->select_right ? 0x80 : 0x40;
797 report->field[1]->value[0] = 0x03; // unknown setting, imitate windows driver
798 report->field[2]->value[0] = data_pointer->sensitivity;
799 report->field[3]->value[0] = data_pointer->press_speed;
800
801 hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
802 return 0;
803 }
804
attr_press_to_select_show_tpkbd(struct device * dev,struct device_attribute * attr,char * buf)805 static ssize_t attr_press_to_select_show_tpkbd(struct device *dev,
806 struct device_attribute *attr,
807 char *buf)
808 {
809 struct hid_device *hdev = to_hid_device(dev);
810 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
811
812 return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->press_to_select);
813 }
814
attr_press_to_select_store_tpkbd(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)815 static ssize_t attr_press_to_select_store_tpkbd(struct device *dev,
816 struct device_attribute *attr,
817 const char *buf,
818 size_t count)
819 {
820 struct hid_device *hdev = to_hid_device(dev);
821 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
822 int value;
823
824 if (kstrtoint(buf, 10, &value))
825 return -EINVAL;
826 if (value < 0 || value > 1)
827 return -EINVAL;
828
829 data_pointer->press_to_select = value;
830 lenovo_features_set_tpkbd(hdev);
831
832 return count;
833 }
834
attr_dragging_show_tpkbd(struct device * dev,struct device_attribute * attr,char * buf)835 static ssize_t attr_dragging_show_tpkbd(struct device *dev,
836 struct device_attribute *attr,
837 char *buf)
838 {
839 struct hid_device *hdev = to_hid_device(dev);
840 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
841
842 return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->dragging);
843 }
844
attr_dragging_store_tpkbd(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)845 static ssize_t attr_dragging_store_tpkbd(struct device *dev,
846 struct device_attribute *attr,
847 const char *buf,
848 size_t count)
849 {
850 struct hid_device *hdev = to_hid_device(dev);
851 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
852 int value;
853
854 if (kstrtoint(buf, 10, &value))
855 return -EINVAL;
856 if (value < 0 || value > 1)
857 return -EINVAL;
858
859 data_pointer->dragging = value;
860 lenovo_features_set_tpkbd(hdev);
861
862 return count;
863 }
864
attr_release_to_select_show_tpkbd(struct device * dev,struct device_attribute * attr,char * buf)865 static ssize_t attr_release_to_select_show_tpkbd(struct device *dev,
866 struct device_attribute *attr,
867 char *buf)
868 {
869 struct hid_device *hdev = to_hid_device(dev);
870 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
871
872 return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->release_to_select);
873 }
874
attr_release_to_select_store_tpkbd(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)875 static ssize_t attr_release_to_select_store_tpkbd(struct device *dev,
876 struct device_attribute *attr,
877 const char *buf,
878 size_t count)
879 {
880 struct hid_device *hdev = to_hid_device(dev);
881 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
882 int value;
883
884 if (kstrtoint(buf, 10, &value))
885 return -EINVAL;
886 if (value < 0 || value > 1)
887 return -EINVAL;
888
889 data_pointer->release_to_select = value;
890 lenovo_features_set_tpkbd(hdev);
891
892 return count;
893 }
894
attr_select_right_show_tpkbd(struct device * dev,struct device_attribute * attr,char * buf)895 static ssize_t attr_select_right_show_tpkbd(struct device *dev,
896 struct device_attribute *attr,
897 char *buf)
898 {
899 struct hid_device *hdev = to_hid_device(dev);
900 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
901
902 return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->select_right);
903 }
904
attr_select_right_store_tpkbd(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)905 static ssize_t attr_select_right_store_tpkbd(struct device *dev,
906 struct device_attribute *attr,
907 const char *buf,
908 size_t count)
909 {
910 struct hid_device *hdev = to_hid_device(dev);
911 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
912 int value;
913
914 if (kstrtoint(buf, 10, &value))
915 return -EINVAL;
916 if (value < 0 || value > 1)
917 return -EINVAL;
918
919 data_pointer->select_right = value;
920 lenovo_features_set_tpkbd(hdev);
921
922 return count;
923 }
924
attr_sensitivity_show_tpkbd(struct device * dev,struct device_attribute * attr,char * buf)925 static ssize_t attr_sensitivity_show_tpkbd(struct device *dev,
926 struct device_attribute *attr,
927 char *buf)
928 {
929 struct hid_device *hdev = to_hid_device(dev);
930 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
931
932 return snprintf(buf, PAGE_SIZE, "%u\n",
933 data_pointer->sensitivity);
934 }
935
attr_sensitivity_store_tpkbd(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)936 static ssize_t attr_sensitivity_store_tpkbd(struct device *dev,
937 struct device_attribute *attr,
938 const char *buf,
939 size_t count)
940 {
941 struct hid_device *hdev = to_hid_device(dev);
942 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
943 int value;
944
945 if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
946 return -EINVAL;
947
948 data_pointer->sensitivity = value;
949 lenovo_features_set_tpkbd(hdev);
950
951 return count;
952 }
953
attr_press_speed_show_tpkbd(struct device * dev,struct device_attribute * attr,char * buf)954 static ssize_t attr_press_speed_show_tpkbd(struct device *dev,
955 struct device_attribute *attr,
956 char *buf)
957 {
958 struct hid_device *hdev = to_hid_device(dev);
959 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
960
961 return snprintf(buf, PAGE_SIZE, "%u\n",
962 data_pointer->press_speed);
963 }
964
attr_press_speed_store_tpkbd(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)965 static ssize_t attr_press_speed_store_tpkbd(struct device *dev,
966 struct device_attribute *attr,
967 const char *buf,
968 size_t count)
969 {
970 struct hid_device *hdev = to_hid_device(dev);
971 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
972 int value;
973
974 if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
975 return -EINVAL;
976
977 data_pointer->press_speed = value;
978 lenovo_features_set_tpkbd(hdev);
979
980 return count;
981 }
982
983 static struct device_attribute dev_attr_press_to_select_tpkbd =
984 __ATTR(press_to_select, S_IWUSR | S_IRUGO,
985 attr_press_to_select_show_tpkbd,
986 attr_press_to_select_store_tpkbd);
987
988 static struct device_attribute dev_attr_dragging_tpkbd =
989 __ATTR(dragging, S_IWUSR | S_IRUGO,
990 attr_dragging_show_tpkbd,
991 attr_dragging_store_tpkbd);
992
993 static struct device_attribute dev_attr_release_to_select_tpkbd =
994 __ATTR(release_to_select, S_IWUSR | S_IRUGO,
995 attr_release_to_select_show_tpkbd,
996 attr_release_to_select_store_tpkbd);
997
998 static struct device_attribute dev_attr_select_right_tpkbd =
999 __ATTR(select_right, S_IWUSR | S_IRUGO,
1000 attr_select_right_show_tpkbd,
1001 attr_select_right_store_tpkbd);
1002
1003 static struct device_attribute dev_attr_sensitivity_tpkbd =
1004 __ATTR(sensitivity, S_IWUSR | S_IRUGO,
1005 attr_sensitivity_show_tpkbd,
1006 attr_sensitivity_store_tpkbd);
1007
1008 static struct device_attribute dev_attr_press_speed_tpkbd =
1009 __ATTR(press_speed, S_IWUSR | S_IRUGO,
1010 attr_press_speed_show_tpkbd,
1011 attr_press_speed_store_tpkbd);
1012
1013 static struct attribute *lenovo_attributes_tpkbd[] = {
1014 &dev_attr_press_to_select_tpkbd.attr,
1015 &dev_attr_dragging_tpkbd.attr,
1016 &dev_attr_release_to_select_tpkbd.attr,
1017 &dev_attr_select_right_tpkbd.attr,
1018 &dev_attr_sensitivity_tpkbd.attr,
1019 &dev_attr_press_speed_tpkbd.attr,
1020 NULL
1021 };
1022
1023 static const struct attribute_group lenovo_attr_group_tpkbd = {
1024 .attrs = lenovo_attributes_tpkbd,
1025 };
1026
lenovo_led_set_tpkbd(struct hid_device * hdev)1027 static void lenovo_led_set_tpkbd(struct hid_device *hdev)
1028 {
1029 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
1030 struct hid_report *report;
1031
1032 report = hdev->report_enum[HID_OUTPUT_REPORT].report_id_hash[3];
1033 report->field[0]->value[0] = (data_pointer->led_state >> 0) & 1;
1034 report->field[0]->value[1] = (data_pointer->led_state >> 1) & 1;
1035 hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
1036 }
1037
lenovo_led_brightness_set(struct led_classdev * led_cdev,enum led_brightness value)1038 static int lenovo_led_brightness_set(struct led_classdev *led_cdev,
1039 enum led_brightness value)
1040 {
1041 struct device *dev = led_cdev->dev->parent;
1042 struct hid_device *hdev = to_hid_device(dev);
1043 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
1044 static const u8 tp10ubkbd_led[] = { TP10UBKBD_MUTE_LED, TP10UBKBD_MICMUTE_LED };
1045 int led_nr = 0;
1046 int ret = 0;
1047
1048 if (led_cdev == &data_pointer->led_micmute)
1049 led_nr = 1;
1050
1051 if (value == LED_OFF)
1052 data_pointer->led_state &= ~(1 << led_nr);
1053 else
1054 data_pointer->led_state |= 1 << led_nr;
1055
1056 switch (hdev->product) {
1057 case USB_DEVICE_ID_LENOVO_TPKBD:
1058 lenovo_led_set_tpkbd(hdev);
1059 break;
1060 case USB_DEVICE_ID_LENOVO_TP10UBKBD:
1061 case USB_DEVICE_ID_LENOVO_X1_TAB:
1062 ret = lenovo_led_set_tp10ubkbd(hdev, tp10ubkbd_led[led_nr], value);
1063 break;
1064 }
1065
1066 return ret;
1067 }
1068
lenovo_register_leds(struct hid_device * hdev)1069 static int lenovo_register_leds(struct hid_device *hdev)
1070 {
1071 struct lenovo_drvdata *data = hid_get_drvdata(hdev);
1072 size_t name_sz = strlen(dev_name(&hdev->dev)) + 16;
1073 char *name_mute, *name_micm;
1074 int ret;
1075
1076 name_mute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
1077 name_micm = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
1078 if (name_mute == NULL || name_micm == NULL) {
1079 hid_err(hdev, "Could not allocate memory for led data\n");
1080 return -ENOMEM;
1081 }
1082 snprintf(name_mute, name_sz, "%s:amber:mute", dev_name(&hdev->dev));
1083 snprintf(name_micm, name_sz, "%s:amber:micmute", dev_name(&hdev->dev));
1084
1085 data->led_mute.name = name_mute;
1086 data->led_mute.default_trigger = "audio-mute";
1087 data->led_mute.brightness_set_blocking = lenovo_led_brightness_set;
1088 data->led_mute.max_brightness = 1;
1089 data->led_mute.flags = LED_HW_PLUGGABLE;
1090 data->led_mute.dev = &hdev->dev;
1091 ret = led_classdev_register(&hdev->dev, &data->led_mute);
1092 if (ret < 0)
1093 return ret;
1094
1095 data->led_micmute.name = name_micm;
1096 data->led_micmute.default_trigger = "audio-micmute";
1097 data->led_micmute.brightness_set_blocking = lenovo_led_brightness_set;
1098 data->led_micmute.max_brightness = 1;
1099 data->led_micmute.flags = LED_HW_PLUGGABLE;
1100 data->led_micmute.dev = &hdev->dev;
1101 ret = led_classdev_register(&hdev->dev, &data->led_micmute);
1102 if (ret < 0) {
1103 led_classdev_unregister(&data->led_mute);
1104 return ret;
1105 }
1106
1107 return 0;
1108 }
1109
lenovo_probe_tpkbd(struct hid_device * hdev)1110 static int lenovo_probe_tpkbd(struct hid_device *hdev)
1111 {
1112 struct lenovo_drvdata *data_pointer;
1113 int i, ret;
1114
1115 /*
1116 * Only register extra settings against subdevice where input_mapping
1117 * set drvdata to 1, i.e. the trackpoint.
1118 */
1119 if (!hid_get_drvdata(hdev))
1120 return 0;
1121
1122 hid_set_drvdata(hdev, NULL);
1123
1124 /* Validate required reports. */
1125 for (i = 0; i < 4; i++) {
1126 if (!hid_validate_values(hdev, HID_FEATURE_REPORT, 4, i, 1))
1127 return -ENODEV;
1128 }
1129 if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 3, 0, 2))
1130 return -ENODEV;
1131
1132 ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd);
1133 if (ret)
1134 hid_warn(hdev, "Could not create sysfs group: %d\n", ret);
1135
1136 data_pointer = devm_kzalloc(&hdev->dev,
1137 sizeof(struct lenovo_drvdata),
1138 GFP_KERNEL);
1139 if (data_pointer == NULL) {
1140 hid_err(hdev, "Could not allocate memory for driver data\n");
1141 ret = -ENOMEM;
1142 goto err;
1143 }
1144
1145 // set same default values as windows driver
1146 data_pointer->sensitivity = 0xa0;
1147 data_pointer->press_speed = 0x38;
1148
1149 hid_set_drvdata(hdev, data_pointer);
1150
1151 ret = lenovo_register_leds(hdev);
1152 if (ret)
1153 goto err;
1154
1155 lenovo_features_set_tpkbd(hdev);
1156
1157 return 0;
1158 err:
1159 sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd);
1160 return ret;
1161 }
1162
lenovo_probe_cptkbd(struct hid_device * hdev)1163 static int lenovo_probe_cptkbd(struct hid_device *hdev)
1164 {
1165 int ret;
1166 struct lenovo_drvdata *cptkbd_data;
1167
1168 /* All the custom action happens on the USBMOUSE device for USB */
1169 if (((hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD) ||
1170 (hdev->product == USB_DEVICE_ID_LENOVO_TPIIUSBKBD)) &&
1171 hdev->type != HID_TYPE_USBMOUSE) {
1172 hid_dbg(hdev, "Ignoring keyboard half of device\n");
1173 return 0;
1174 }
1175
1176 cptkbd_data = devm_kzalloc(&hdev->dev,
1177 sizeof(*cptkbd_data),
1178 GFP_KERNEL);
1179 if (cptkbd_data == NULL) {
1180 hid_err(hdev, "can't alloc keyboard descriptor\n");
1181 return -ENOMEM;
1182 }
1183 hid_set_drvdata(hdev, cptkbd_data);
1184
1185 /* Set keyboard settings to known state */
1186 cptkbd_data->middlebutton_state = 0;
1187 cptkbd_data->fn_lock = true;
1188 cptkbd_data->sensitivity = 0x05;
1189 cptkbd_data->middleclick_workaround_cptkbd = true;
1190 lenovo_features_set_cptkbd(hdev);
1191
1192 ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_cptkbd);
1193 if (ret)
1194 hid_warn(hdev, "Could not create sysfs group: %d\n", ret);
1195
1196 return 0;
1197 }
1198
1199 static struct attribute *lenovo_attributes_tp10ubkbd[] = {
1200 &dev_attr_fn_lock.attr,
1201 NULL
1202 };
1203
1204 static const struct attribute_group lenovo_attr_group_tp10ubkbd = {
1205 .attrs = lenovo_attributes_tp10ubkbd,
1206 };
1207
lenovo_probe_tp10ubkbd(struct hid_device * hdev)1208 static int lenovo_probe_tp10ubkbd(struct hid_device *hdev)
1209 {
1210 struct hid_report_enum *rep_enum;
1211 struct lenovo_drvdata *data;
1212 struct hid_report *rep;
1213 bool found;
1214 int ret;
1215
1216 /*
1217 * The LEDs and the Fn-lock functionality use output report 9,
1218 * with an application of 0xffa0001, add the LEDs on the interface
1219 * with this output report.
1220 */
1221 found = false;
1222 rep_enum = &hdev->report_enum[HID_OUTPUT_REPORT];
1223 list_for_each_entry(rep, &rep_enum->report_list, list) {
1224 if (rep->application == 0xffa00001)
1225 found = true;
1226 }
1227 if (!found)
1228 return 0;
1229
1230 data = devm_kzalloc(&hdev->dev, sizeof(*data), GFP_KERNEL);
1231 if (!data)
1232 return -ENOMEM;
1233
1234 mutex_init(&data->led_report_mutex);
1235 INIT_WORK(&data->fn_lock_sync_work, lenovo_tp10ubkbd_sync_fn_lock);
1236 data->hdev = hdev;
1237
1238 hid_set_drvdata(hdev, data);
1239
1240 /*
1241 * The Thinkpad 10 ultrabook USB kbd dock's Fn-lock defaults to on.
1242 * We cannot read the state, only set it, so we force it to on here
1243 * (which should be a no-op) to make sure that our state matches the
1244 * keyboard's FN-lock state. This is the same as what Windows does.
1245 */
1246 data->fn_lock = true;
1247 lenovo_led_set_tp10ubkbd(hdev, TP10UBKBD_FN_LOCK_LED, data->fn_lock);
1248
1249 ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
1250 if (ret)
1251 return ret;
1252
1253 ret = lenovo_register_leds(hdev);
1254 if (ret)
1255 goto err;
1256
1257 return 0;
1258 err:
1259 sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
1260 return ret;
1261 }
1262
lenovo_probe(struct hid_device * hdev,const struct hid_device_id * id)1263 static int lenovo_probe(struct hid_device *hdev,
1264 const struct hid_device_id *id)
1265 {
1266 int ret;
1267
1268 ret = hid_parse(hdev);
1269 if (ret) {
1270 hid_err(hdev, "hid_parse failed\n");
1271 goto err;
1272 }
1273
1274 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1275 if (ret) {
1276 hid_err(hdev, "hid_hw_start failed\n");
1277 goto err;
1278 }
1279
1280 switch (hdev->product) {
1281 case USB_DEVICE_ID_LENOVO_TPKBD:
1282 ret = lenovo_probe_tpkbd(hdev);
1283 break;
1284 case USB_DEVICE_ID_LENOVO_CUSBKBD:
1285 case USB_DEVICE_ID_LENOVO_CBTKBD:
1286 case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
1287 case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
1288 ret = lenovo_probe_cptkbd(hdev);
1289 break;
1290 case USB_DEVICE_ID_LENOVO_TP10UBKBD:
1291 case USB_DEVICE_ID_LENOVO_X1_TAB:
1292 ret = lenovo_probe_tp10ubkbd(hdev);
1293 break;
1294 default:
1295 ret = 0;
1296 break;
1297 }
1298 if (ret)
1299 goto err_hid;
1300
1301 return 0;
1302 err_hid:
1303 hid_hw_stop(hdev);
1304 err:
1305 return ret;
1306 }
1307
1308 #ifdef CONFIG_PM
lenovo_reset_resume(struct hid_device * hdev)1309 static int lenovo_reset_resume(struct hid_device *hdev)
1310 {
1311 switch (hdev->product) {
1312 case USB_DEVICE_ID_LENOVO_CUSBKBD:
1313 case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
1314 if (hdev->type == HID_TYPE_USBMOUSE)
1315 lenovo_features_set_cptkbd(hdev);
1316
1317 break;
1318 default:
1319 break;
1320 }
1321
1322 return 0;
1323 }
1324 #endif
1325
lenovo_remove_tpkbd(struct hid_device * hdev)1326 static void lenovo_remove_tpkbd(struct hid_device *hdev)
1327 {
1328 struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
1329
1330 /*
1331 * Only the trackpoint half of the keyboard has drvdata and stuff that
1332 * needs unregistering.
1333 */
1334 if (data_pointer == NULL)
1335 return;
1336
1337 sysfs_remove_group(&hdev->dev.kobj,
1338 &lenovo_attr_group_tpkbd);
1339
1340 led_classdev_unregister(&data_pointer->led_micmute);
1341 led_classdev_unregister(&data_pointer->led_mute);
1342 }
1343
lenovo_remove_cptkbd(struct hid_device * hdev)1344 static void lenovo_remove_cptkbd(struct hid_device *hdev)
1345 {
1346 sysfs_remove_group(&hdev->dev.kobj,
1347 &lenovo_attr_group_cptkbd);
1348 }
1349
lenovo_remove_tp10ubkbd(struct hid_device * hdev)1350 static void lenovo_remove_tp10ubkbd(struct hid_device *hdev)
1351 {
1352 struct lenovo_drvdata *data = hid_get_drvdata(hdev);
1353
1354 if (data == NULL)
1355 return;
1356
1357 led_classdev_unregister(&data->led_micmute);
1358 led_classdev_unregister(&data->led_mute);
1359
1360 sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
1361 cancel_work_sync(&data->fn_lock_sync_work);
1362 }
1363
lenovo_remove(struct hid_device * hdev)1364 static void lenovo_remove(struct hid_device *hdev)
1365 {
1366 switch (hdev->product) {
1367 case USB_DEVICE_ID_LENOVO_TPKBD:
1368 lenovo_remove_tpkbd(hdev);
1369 break;
1370 case USB_DEVICE_ID_LENOVO_CUSBKBD:
1371 case USB_DEVICE_ID_LENOVO_CBTKBD:
1372 case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
1373 case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
1374 lenovo_remove_cptkbd(hdev);
1375 break;
1376 case USB_DEVICE_ID_LENOVO_TP10UBKBD:
1377 case USB_DEVICE_ID_LENOVO_X1_TAB:
1378 lenovo_remove_tp10ubkbd(hdev);
1379 break;
1380 }
1381
1382 hid_hw_stop(hdev);
1383 }
1384
lenovo_input_configured(struct hid_device * hdev,struct hid_input * hi)1385 static int lenovo_input_configured(struct hid_device *hdev,
1386 struct hid_input *hi)
1387 {
1388 switch (hdev->product) {
1389 case USB_DEVICE_ID_LENOVO_TPKBD:
1390 case USB_DEVICE_ID_LENOVO_CUSBKBD:
1391 case USB_DEVICE_ID_LENOVO_CBTKBD:
1392 case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
1393 case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
1394 if (test_bit(EV_REL, hi->input->evbit)) {
1395 /* set only for trackpoint device */
1396 __set_bit(INPUT_PROP_POINTER, hi->input->propbit);
1397 __set_bit(INPUT_PROP_POINTING_STICK,
1398 hi->input->propbit);
1399 }
1400 break;
1401 }
1402
1403 return 0;
1404 }
1405
1406
1407 static const struct hid_device_id lenovo_devices[] = {
1408 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1409 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) },
1410 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPIIUSBKBD) },
1411 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) },
1412 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPIIBTKBD) },
1413 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPPRODOCK) },
1414 { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_III) },
1415 { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) },
1416 { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) },
1417 { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) },
1418 { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) },
1419 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL) },
1420 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TP10UBKBD) },
1421 /*
1422 * Note bind to the HID_GROUP_GENERIC group, so that we only bind to the keyboard
1423 * part, while letting hid-multitouch.c handle the touchpad and trackpoint.
1424 */
1425 { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
1426 USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_TAB) },
1427 { }
1428 };
1429
1430 MODULE_DEVICE_TABLE(hid, lenovo_devices);
1431
1432 static struct hid_driver lenovo_driver = {
1433 .name = "lenovo",
1434 .id_table = lenovo_devices,
1435 .input_configured = lenovo_input_configured,
1436 .input_mapping = lenovo_input_mapping,
1437 .probe = lenovo_probe,
1438 .remove = lenovo_remove,
1439 .raw_event = lenovo_raw_event,
1440 .event = lenovo_event,
1441 .report_fixup = lenovo_report_fixup,
1442 #ifdef CONFIG_PM
1443 .reset_resume = lenovo_reset_resume,
1444 #endif
1445 };
1446 module_hid_driver(lenovo_driver);
1447
1448 MODULE_LICENSE("GPL");
1449