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Merge tag 'wireless-drivers-next-for-davem-2018-11-30' of git://git.kernel.org/pub...
[linux-2.6-block.git] / drivers / hid / hid-asus.c
CommitLineData
eeb01a57 1/*
b94f7d5d 2 * HID driver for Asus notebook built-in keyboard.
eeb01a57
YF		 3 * Fixes small logical maximum to match usage maximum.
4 *
b94f7d5d
YF		 5 * Currently supported devices are:
6 * EeeBook X205TA
7 * VivoBook E200HA
8 *
eeb01a57
YF		 9 * Copyright (c) 2016 Yusuke Fujimaki <usk.fujimaki@gmail.com>
10 *
11 * This module based on hid-ortek by
12 * Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com>
13 * Copyright (c) 2011 Jiri Kosina
9ce12d8b
BM		 14 *
15 * This module has been updated to add support for Asus i2c touchpad.
16 *
17 * Copyright (c) 2016 Brendan McGrath <redmcg@redmandi.dyndns.org>
18 * Copyright (c) 2016 Victor Vlasenko <victor.vlasenko@sysgears.com>
19 * Copyright (c) 2016 Frederik Wenigwieser <frederik.wenigwieser@gmail.com>
eeb01a57
YF		 20 */
21
22/*
23 * This program is free software; you can redistribute it and/or modify it
24 * under the terms of the GNU General Public License as published by the Free
25 * Software Foundation; either version 2 of the License, or (at your option)
26 * any later version.
27 */
28
762f948c 29#include <linux/dmi.h>
eeb01a57
YF		 30#include <linux/hid.h>
31#include <linux/module.h>
3b692c55 32#include <linux/platform_data/x86/asus-wmi.h>
9ce12d8b 33#include <linux/input/mt.h>
57573c54 34#include <linux/usb.h> /* For to_usb_interface for T100 touchpad intf check */
eeb01a57
YF		 35
36#include "hid-ids.h"
37
9ce12d8b
BM		 38MODULE_AUTHOR("Yusuke Fujimaki <usk.fujimaki@gmail.com>");
39MODULE_AUTHOR("Brendan McGrath <redmcg@redmandi.dyndns.org>");
40MODULE_AUTHOR("Victor Vlasenko <victor.vlasenko@sysgears.com>");
41MODULE_AUTHOR("Frederik Wenigwieser <frederik.wenigwieser@gmail.com>");
42MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
43
57573c54
HG		 44#define T100_TPAD_INTF 2
45
73c75d39 46#define T100CHI_MOUSE_REPORT_ID 0x06
9ce12d8b
BM		 47#define FEATURE_REPORT_ID 0x0d
48#define INPUT_REPORT_ID 0x5d
af22a610 49#define FEATURE_KBD_REPORT_ID 0x5a
af22a610
CC		 50#define FEATURE_KBD_REPORT_SIZE 16
51
52#define SUPPORT_KBD_BACKLIGHT BIT(0)
9ce12d8b 53
9ce12d8b
BM		 54#define MAX_TOUCH_MAJOR 8
55#define MAX_PRESSURE 128
56
9ce12d8b
BM		 57#define BTN_LEFT_MASK 0x01
58#define CONTACT_TOOL_TYPE_MASK 0x80
59#define CONTACT_X_MSB_MASK 0xf0
60#define CONTACT_Y_MSB_MASK 0x0f
61#define CONTACT_TOUCH_MAJOR_MASK 0x07
62#define CONTACT_PRESSURE_MASK 0x7f
63
64#define QUIRK_FIX_NOTEBOOK_REPORT BIT(0)
65#define QUIRK_NO_INIT_REPORTS BIT(1)
66#define QUIRK_SKIP_INPUT_MAPPING BIT(2)
67#define QUIRK_IS_MULTITOUCH BIT(3)
0485b1ec 68#define QUIRK_NO_CONSUMER_USAGES BIT(4)
af22a610 69#define QUIRK_USE_KBD_BACKLIGHT BIT(5)
76dd1fbe 70#define QUIRK_T100_KEYBOARD BIT(6)
5703e52c 71#define QUIRK_T100CHI BIT(7)
832e1eee 72#define QUIRK_G752_KEYBOARD BIT(8)
9ce12d8b 73
a93913e1 74#define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \
0485b1ec
MH		 75 QUIRK_NO_INIT_REPORTS | \
76 QUIRK_NO_CONSUMER_USAGES)
c81760b9 77#define I2C_TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \
9ce12d8b
BM		 78 QUIRK_SKIP_INPUT_MAPPING | \
79 QUIRK_IS_MULTITOUCH)
80
81#define TRKID_SGN ((TRKID_MAX + 1) >> 1)
82
af22a610
CC		 83struct asus_kbd_leds {
84 struct led_classdev cdev;
85 struct hid_device *hdev;
86 struct work_struct work;
87 unsigned int brightness;
88 bool removed;
89};
90
c81760b9
HG		 91struct asus_touchpad_info {
92 int max_x;
93 int max_y;
b61d43e6
HG		 94 int res_x;
95 int res_y;
c81760b9
HG		 96 int contact_size;
97 int max_contacts;
98};
99
9ce12d8b
BM		 100struct asus_drvdata {
101 unsigned long quirks;
102 struct input_dev *input;
af22a610 103 struct asus_kbd_leds *kbd_backlight;
c81760b9 104 const struct asus_touchpad_info *tp;
af22a610 105 bool enable_backlight;
9ce12d8b
BM		 106};
107
c81760b9
HG		 108static const struct asus_touchpad_info asus_i2c_tp = {
109 .max_x = 2794,
110 .max_y = 1758,
111 .contact_size = 5,
112 .max_contacts = 5,
113};
114
115static const struct asus_touchpad_info asus_t100ta_tp = {
116 .max_x = 2240,
25cc2611 117 .max_y = 1120,
b61d43e6
HG		 118 .res_x = 30, /* units/mm */
119 .res_y = 27, /* units/mm */
c81760b9
HG		 120 .contact_size = 5,
121 .max_contacts = 5,
122};
123
762f948c
HG		 124static const struct asus_touchpad_info asus_t100ha_tp = {
125 .max_x = 2640,
126 .max_y = 1320,
127 .res_x = 30, /* units/mm */
128 .res_y = 29, /* units/mm */
129 .contact_size = 5,
130 .max_contacts = 5,
131};
132
dbd3ef28
HG		 133static const struct asus_touchpad_info asus_t200ta_tp = {
134 .max_x = 3120,
135 .max_y = 1716,
136 .res_x = 30, /* units/mm */
137 .res_y = 28, /* units/mm */
138 .contact_size = 5,
139 .max_contacts = 5,
140};
141
73c75d39
HG		 142static const struct asus_touchpad_info asus_t100chi_tp = {
143 .max_x = 2640,
144 .max_y = 1320,
145 .res_x = 31, /* units/mm */
146 .res_y = 29, /* units/mm */
147 .contact_size = 3,
148 .max_contacts = 4,
149};
150
c81760b9 151static void asus_report_contact_down(struct asus_drvdata *drvdat,
9ce12d8b
BM		 152 int toolType, u8 *data)
153{
c81760b9
HG		 154 struct input_dev *input = drvdat->input;
155 int touch_major, pressure, x, y;
156
157 x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1];
158 y = drvdat->tp->max_y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]);
9ce12d8b 159
73c75d39
HG		 160 input_report_abs(input, ABS_MT_POSITION_X, x);
161 input_report_abs(input, ABS_MT_POSITION_Y, y);
162
163 if (drvdat->tp->contact_size < 5)
164 return;
165
9ce12d8b
BM		 166 if (toolType == MT_TOOL_PALM) {
167 touch_major = MAX_TOUCH_MAJOR;
168 pressure = MAX_PRESSURE;
169 } else {
170 touch_major = (data[3] >> 4) & CONTACT_TOUCH_MAJOR_MASK;
171 pressure = data[4] & CONTACT_PRESSURE_MASK;
172 }
173
9ce12d8b
BM		 174 input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major);
175 input_report_abs(input, ABS_MT_PRESSURE, pressure);
176}
177
178/* Required for Synaptics Palm Detection */
c81760b9 179static void asus_report_tool_width(struct asus_drvdata *drvdat)
9ce12d8b 180{
c81760b9 181 struct input_mt *mt = drvdat->input->mt;
9ce12d8b
BM		 182 struct input_mt_slot *oldest;
183 int oldid, count, i;
184
73c75d39
HG		 185 if (drvdat->tp->contact_size < 5)
186 return;
187
9ce12d8b
BM		 188 oldest = NULL;
189 oldid = mt->trkid;
190 count = 0;
191
192 for (i = 0; i < mt->num_slots; ++i) {
193 struct input_mt_slot *ps = &mt->slots[i];
194 int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID);
195
196 if (id < 0)
197 continue;
198 if ((id - oldid) & TRKID_SGN) {
199 oldest = ps;
200 oldid = id;
201 }
202 count++;
203 }
204
205 if (oldest) {
c81760b9 206 input_report_abs(drvdat->input, ABS_TOOL_WIDTH,
9ce12d8b
BM		 207 input_mt_get_value(oldest, ABS_MT_TOUCH_MAJOR));
208 }
209}
210
c81760b9 211static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size)
9ce12d8b 212{
73c75d39 213 int i, toolType = MT_TOOL_FINGER;
9ce12d8b
BM		 214 u8 *contactData = data + 2;
215
c81760b9
HG		 216 if (size != 3 + drvdat->tp->contact_size * drvdat->tp->max_contacts)
217 return 0;
218
219 for (i = 0; i < drvdat->tp->max_contacts; i++) {
9ce12d8b 220 bool down = !!(data[1] & BIT(i+3));
73c75d39
HG		 221
222 if (drvdat->tp->contact_size >= 5)
223 toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ?
9ce12d8b
BM		 224 MT_TOOL_PALM : MT_TOOL_FINGER;
225
c81760b9
HG		 226 input_mt_slot(drvdat->input, i);
227 input_mt_report_slot_state(drvdat->input, toolType, down);
9ce12d8b
BM		 228
229 if (down) {
c81760b9
HG		 230 asus_report_contact_down(drvdat, toolType, contactData);
231 contactData += drvdat->tp->contact_size;
9ce12d8b
BM		 232 }
233 }
234
c81760b9
HG		 235 input_report_key(drvdat->input, BTN_LEFT, data[1] & BTN_LEFT_MASK);
236 asus_report_tool_width(drvdat);
237
238 input_mt_sync_frame(drvdat->input);
239 input_sync(drvdat->input);
9ce12d8b 240
c81760b9 241 return 1;
9ce12d8b
BM		 242}
243
244static int asus_raw_event(struct hid_device *hdev,
245 struct hid_report *report, u8 *data, int size)
246{
247 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
248
c81760b9
HG		 249 if (drvdata->tp && data[0] == INPUT_REPORT_ID)
250 return asus_report_input(drvdata, data, size);
9ce12d8b
BM		 251
252 return 0;
253}
254
af22a610
CC		 255static int asus_kbd_set_report(struct hid_device *hdev, u8 *buf, size_t buf_size)
256{
257 unsigned char *dmabuf;
258 int ret;
259
260 dmabuf = kmemdup(buf, buf_size, GFP_KERNEL);
261 if (!dmabuf)
262 return -ENOMEM;
263
264 ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, dmabuf,
265 buf_size, HID_FEATURE_REPORT,
266 HID_REQ_SET_REPORT);
267 kfree(dmabuf);
268
269 return ret;
270}
271
272static int asus_kbd_init(struct hid_device *hdev)
273{
274 u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x41, 0x53, 0x55, 0x53, 0x20, 0x54,
275 0x65, 0x63, 0x68, 0x2e, 0x49, 0x6e, 0x63, 0x2e, 0x00 };
276 int ret;
277
278 ret = asus_kbd_set_report(hdev, buf, sizeof(buf));
279 if (ret < 0)
280 hid_err(hdev, "Asus failed to send init command: %d\n", ret);
281
282 return ret;
283}
284
285static int asus_kbd_get_functions(struct hid_device *hdev,
286 unsigned char *kbd_func)
287{
288 u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x05, 0x20, 0x31, 0x00, 0x08 };
289 u8 *readbuf;
290 int ret;
291
292 ret = asus_kbd_set_report(hdev, buf, sizeof(buf));
293 if (ret < 0) {
294 hid_err(hdev, "Asus failed to send configuration command: %d\n", ret);
295 return ret;
296 }
297
298 readbuf = kzalloc(FEATURE_KBD_REPORT_SIZE, GFP_KERNEL);
299 if (!readbuf)
300 return -ENOMEM;
301
302 ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, readbuf,
303 FEATURE_KBD_REPORT_SIZE, HID_FEATURE_REPORT,
304 HID_REQ_GET_REPORT);
305 if (ret < 0) {
306 hid_err(hdev, "Asus failed to request functions: %d\n", ret);
307 kfree(readbuf);
308 return ret;
309 }
310
311 *kbd_func = readbuf[6];
312
313 kfree(readbuf);
314 return ret;
315}
316
317static void asus_kbd_backlight_set(struct led_classdev *led_cdev,
318 enum led_brightness brightness)
319{
320 struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
321 cdev);
322 if (led->brightness == brightness)
323 return;
324
325 led->brightness = brightness;
326 schedule_work(&led->work);
327}
328
329static enum led_brightness asus_kbd_backlight_get(struct led_classdev *led_cdev)
330{
331 struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
332 cdev);
333
334 return led->brightness;
335}
336
337static void asus_kbd_backlight_work(struct work_struct *work)
338{
339 struct asus_kbd_leds *led = container_of(work, struct asus_kbd_leds, work);
340 u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4, 0x00 };
341 int ret;
342
343 if (led->removed)
344 return;
345
346 buf[4] = led->brightness;
347
348 ret = asus_kbd_set_report(led->hdev, buf, sizeof(buf));
349 if (ret < 0)
350 hid_err(led->hdev, "Asus failed to set keyboard backlight: %d\n", ret);
351}
352
3b692c55
DD		 353/* WMI-based keyboard backlight LED control (via asus-wmi driver) takes
354 * precedence. We only activate HID-based backlight control when the
355 * WMI control is not available.
356 */
357static bool asus_kbd_wmi_led_control_present(struct hid_device *hdev)
358{
359 u32 value;
360 int ret;
361
3fc202e8
AB		 362 if (!IS_ENABLED(CONFIG_ASUS_WMI))
363 return false;
364
3b692c55
DD		 365 ret = asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS2,
366 ASUS_WMI_DEVID_KBD_BACKLIGHT, 0, &value);
367 hid_dbg(hdev, "WMI backlight check: rc %d value %x", ret, value);
368 if (ret)
369 return false;
370
371 return !!(value & ASUS_WMI_DSTS_PRESENCE_BIT);
372}
373
af22a610
CC		 374static int asus_kbd_register_leds(struct hid_device *hdev)
375{
376 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
377 unsigned char kbd_func;
378 int ret;
379
380 /* Initialize keyboard */
381 ret = asus_kbd_init(hdev);
382 if (ret < 0)
383 return ret;
384
385 /* Get keyboard functions */
386 ret = asus_kbd_get_functions(hdev, &kbd_func);
387 if (ret < 0)
388 return ret;
389
390 /* Check for backlight support */
391 if (!(kbd_func & SUPPORT_KBD_BACKLIGHT))
392 return -ENODEV;
393
394 drvdata->kbd_backlight = devm_kzalloc(&hdev->dev,
395 sizeof(struct asus_kbd_leds),
396 GFP_KERNEL);
397 if (!drvdata->kbd_backlight)
398 return -ENOMEM;
399
400 drvdata->kbd_backlight->removed = false;
401 drvdata->kbd_backlight->brightness = 0;
402 drvdata->kbd_backlight->hdev = hdev;
403 drvdata->kbd_backlight->cdev.name = "asus::kbd_backlight";
404 drvdata->kbd_backlight->cdev.max_brightness = 3;
405 drvdata->kbd_backlight->cdev.brightness_set = asus_kbd_backlight_set;
406 drvdata->kbd_backlight->cdev.brightness_get = asus_kbd_backlight_get;
407 INIT_WORK(&drvdata->kbd_backlight->work, asus_kbd_backlight_work);
408
409 ret = devm_led_classdev_register(&hdev->dev, &drvdata->kbd_backlight->cdev);
410 if (ret < 0) {
411 /* No need to have this still around */
412 devm_kfree(&hdev->dev, drvdata->kbd_backlight);
413 }
414
415 return ret;
416}
417
9ce12d8b
BM		 418static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi)
419{
c8b1b3dd 420 struct input_dev *input = hi->input;
9ce12d8b
BM		 421 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
422
73c75d39
HG		 423 /* T100CHI uses MULTI_INPUT, bind the touchpad to the mouse hid_input */
424 if (drvdata->quirks & QUIRK_T100CHI &&
425 hi->report->id != T100CHI_MOUSE_REPORT_ID)
426 return 0;
427
c81760b9 428 if (drvdata->tp) {
9ce12d8b 429 int ret;
9ce12d8b 430
c81760b9
HG		 431 input_set_abs_params(input, ABS_MT_POSITION_X, 0,
432 drvdata->tp->max_x, 0, 0);
433 input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
434 drvdata->tp->max_y, 0, 0);
b61d43e6
HG		 435 input_abs_set_res(input, ABS_MT_POSITION_X, drvdata->tp->res_x);
436 input_abs_set_res(input, ABS_MT_POSITION_Y, drvdata->tp->res_y);
73c75d39
HG		 437
438 if (drvdata->tp->contact_size >= 5) {
439 input_set_abs_params(input, ABS_TOOL_WIDTH, 0,
440 MAX_TOUCH_MAJOR, 0, 0);
441 input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0,
442 MAX_TOUCH_MAJOR, 0, 0);
443 input_set_abs_params(input, ABS_MT_PRESSURE, 0,
444 MAX_PRESSURE, 0, 0);
445 }
9ce12d8b
BM		 446
447 __set_bit(BTN_LEFT, input->keybit);
448 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
449
c81760b9
HG		 450 ret = input_mt_init_slots(input, drvdata->tp->max_contacts,
451 INPUT_MT_POINTER);
9ce12d8b
BM		 452
453 if (ret) {
454 hid_err(hdev, "Asus input mt init slots failed: %d\n", ret);
455 return ret;
456 }
9ce12d8b
BM		 457 }
458
c8b1b3dd
BM		 459 drvdata->input = input;
460
3b692c55
DD		 461 if (drvdata->enable_backlight &&
462 !asus_kbd_wmi_led_control_present(hdev) &&
463 asus_kbd_register_leds(hdev))
af22a610
CC		 464 hid_warn(hdev, "Failed to initialize backlight.\n");
465
9ce12d8b
BM		 466 return 0;
467}
468
a93913e1 469#define asus_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \
1caccc25 470 max, EV_KEY, (c))
9ce12d8b
BM		 471static int asus_input_mapping(struct hid_device *hdev,
472 struct hid_input *hi, struct hid_field *field,
473 struct hid_usage *usage, unsigned long **bit,
474 int *max)
475{
476 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
477
478 if (drvdata->quirks & QUIRK_SKIP_INPUT_MAPPING) {
479 /* Don't map anything from the HID report.
480 * We do it all manually in asus_input_configured
481 */
482 return -1;
483 }
484
73c75d39
HG		 485 /*
486 * Ignore a bunch of bogus collections in the T100CHI descriptor.
487 * This avoids a bunch of non-functional hid_input devices getting
488 * created because of the T100CHI using HID_QUIRK_MULTI_INPUT.
489 */
490 if (drvdata->quirks & QUIRK_T100CHI) {
491 if (field->application == (HID_UP_GENDESK | 0x0080) ||
492 usage->hid == (HID_UP_GENDEVCTRLS | 0x0024) ||
493 usage->hid == (HID_UP_GENDEVCTRLS | 0x0025) ||
494 usage->hid == (HID_UP_GENDEVCTRLS | 0x0026))
495 return -1;
496 /*
497 * We use the hid_input for the mouse report for the touchpad,
498 * keep the left button, to avoid the core removing it.
499 */
500 if (field->application == HID_GD_MOUSE &&
501 usage->hid != (HID_UP_BUTTON | 1))
502 return -1;
503 }
504
a93913e1 505 /* ASUS-specific keyboard hotkeys */
1caccc25
CC		 506 if ((usage->hid & HID_USAGE_PAGE) == 0xff310000) {
507 set_bit(EV_REP, hi->input->evbit);
508 switch (usage->hid & HID_USAGE) {
a93913e1
MH		 509 case 0x10: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break;
510 case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP); break;
511 case 0x35: asus_map_key_clear(KEY_DISPLAY_OFF); break;
512 case 0x6c: asus_map_key_clear(KEY_SLEEP); break;
513 case 0x82: asus_map_key_clear(KEY_CAMERA); break;
802b24b4 514 case 0x88: asus_map_key_clear(KEY_RFKILL); break;
a93913e1
MH		 515 case 0xb5: asus_map_key_clear(KEY_CALC); break;
516 case 0xc4: asus_map_key_clear(KEY_KBDILLUMUP); break;
517 case 0xc5: asus_map_key_clear(KEY_KBDILLUMDOWN); break;
1caccc25
CC		 518
519 /* ASUS touchpad toggle */
a93913e1 520 case 0x6b: asus_map_key_clear(KEY_F21); break;
1caccc25
CC		 521
522 /* ROG key */
a93913e1 523 case 0x38: asus_map_key_clear(KEY_PROG1); break;
1caccc25
CC		 524
525 /* Fn+C ASUS Splendid */
a93913e1 526 case 0xba: asus_map_key_clear(KEY_PROG2); break;
1caccc25
CC		 527
528 /* Fn+Space Power4Gear Hybrid */
a93913e1 529 case 0x5c: asus_map_key_clear(KEY_PROG3); break;
1caccc25
CC		 530
531 default:
0485b1ec
MH		 532 /* ASUS lazily declares 256 usages, ignore the rest,
533 * as some make the keyboard appear as a pointer device. */
534 return -1;
1caccc25 535 }
af22a610
CC		 536
537 /*
538 * Check and enable backlight only on devices with UsagePage ==
539 * 0xff31 to avoid initializing the keyboard firmware multiple
540 * times on devices with multiple HID descriptors but same
541 * PID/VID.
542 */
543 if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT)
544 drvdata->enable_backlight = true;
545
1caccc25
CC		 546 return 1;
547 }
548
5be91803
DD		 549 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) {
550 set_bit(EV_REP, hi->input->evbit);
551 switch (usage->hid & HID_USAGE) {
552 case 0xff01: asus_map_key_clear(BTN_1); break;
553 case 0xff02: asus_map_key_clear(BTN_2); break;
554 case 0xff03: asus_map_key_clear(BTN_3); break;
555 case 0xff04: asus_map_key_clear(BTN_4); break;
556 case 0xff05: asus_map_key_clear(BTN_5); break;
557 case 0xff06: asus_map_key_clear(BTN_6); break;
558 case 0xff07: asus_map_key_clear(BTN_7); break;
559 case 0xff08: asus_map_key_clear(BTN_8); break;
560 case 0xff09: asus_map_key_clear(BTN_9); break;
561 case 0xff0a: asus_map_key_clear(BTN_A); break;
562 case 0xff0b: asus_map_key_clear(BTN_B); break;
563 case 0x00f1: asus_map_key_clear(KEY_WLAN); break;
564 case 0x00f2: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break;
565 case 0x00f3: asus_map_key_clear(KEY_BRIGHTNESSUP); break;
566 case 0x00f4: asus_map_key_clear(KEY_DISPLAY_OFF); break;
567 case 0x00f7: asus_map_key_clear(KEY_CAMERA); break;
568 case 0x00f8: asus_map_key_clear(KEY_PROG1); break;
569 default:
570 return 0;
571 }
572
573 return 1;
574 }
575
0485b1ec
MH		 576 if (drvdata->quirks & QUIRK_NO_CONSUMER_USAGES &&
577 (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
578 switch (usage->hid & HID_USAGE) {
579 case 0xe2: /* Mute */
580 case 0xe9: /* Volume up */
581 case 0xea: /* Volume down */
582 return 0;
583 default:
584 /* Ignore dummy Consumer usages which make the
585 * keyboard incorrectly appear as a pointer device.
586 */
587 return -1;
588 }
589 }
590
9ce12d8b
BM		 591 return 0;
592}
593
594static int asus_start_multitouch(struct hid_device *hdev)
595{
596 int ret;
b9ec7009
CIK		 597 static const unsigned char buf[] = {
598 FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00
599 };
9ce12d8b
BM		 600 unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL);
601
602 if (!dmabuf) {
603 ret = -ENOMEM;
604 hid_err(hdev, "Asus failed to alloc dma buf: %d\n", ret);
605 return ret;
606 }
607
608 ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, sizeof(buf),
609 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
610
611 kfree(dmabuf);
612
613 if (ret != sizeof(buf)) {
614 hid_err(hdev, "Asus failed to start multitouch: %d\n", ret);
615 return ret;
616 }
617
618 return 0;
619}
620
621static int __maybe_unused asus_reset_resume(struct hid_device *hdev)
622{
623 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
624
c81760b9 625 if (drvdata->tp)
9ce12d8b
BM		 626 return asus_start_multitouch(hdev);
627
628 return 0;
629}
630
631static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
632{
633 int ret;
634 struct asus_drvdata *drvdata;
635
636 drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
637 if (drvdata == NULL) {
638 hid_err(hdev, "Can't alloc Asus descriptor\n");
639 return -ENOMEM;
640 }
641
642 hid_set_drvdata(hdev, drvdata);
643
644 drvdata->quirks = id->driver_data;
645
c81760b9
HG		 646 if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
647 drvdata->tp = &asus_i2c_tp;
648
57573c54
HG		 649 if (drvdata->quirks & QUIRK_T100_KEYBOARD) {
650 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
651
c81760b9
HG		 652 if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) {
653 drvdata->quirks = QUIRK_SKIP_INPUT_MAPPING;
762f948c 654 /*
dbd3ef28
HG		 655 * The T100HA uses the same USB-ids as the T100TAF and
656 * the T200TA uses the same USB-ids as the T100TA, while
657 * both have different max x/y values as the T100TA[F].
762f948c
HG		 658 */
659 if (dmi_match(DMI_PRODUCT_NAME, "T100HAN"))
660 drvdata->tp = &asus_t100ha_tp;
dbd3ef28
HG		 661 else if (dmi_match(DMI_PRODUCT_NAME, "T200TA"))
662 drvdata->tp = &asus_t200ta_tp;
762f948c
HG		 663 else
664 drvdata->tp = &asus_t100ta_tp;
c81760b9 665 }
57573c54
HG		 666 }
667
73c75d39
HG		 668 if (drvdata->quirks & QUIRK_T100CHI) {
669 /*
670 * All functionality is on a single HID interface and for
671 * userspace the touchpad must be a separate input_dev.
672 */
39335d1c 673 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
73c75d39
HG		 674 drvdata->tp = &asus_t100chi_tp;
675 }
676
9ce12d8b
BM		 677 if (drvdata->quirks & QUIRK_NO_INIT_REPORTS)
678 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
679
680 ret = hid_parse(hdev);
681 if (ret) {
682 hid_err(hdev, "Asus hid parse failed: %d\n", ret);
683 return ret;
684 }
685
686 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
687 if (ret) {
688 hid_err(hdev, "Asus hw start failed: %d\n", ret);
689 return ret;
690 }
691
692 if (!drvdata->input) {
693 hid_err(hdev, "Asus input not registered\n");
694 ret = -ENOMEM;
695 goto err_stop_hw;
696 }
697
c81760b9 698 if (drvdata->tp) {
c8b1b3dd
BM		 699 drvdata->input->name = "Asus TouchPad";
700 } else {
701 drvdata->input->name = "Asus Keyboard";
702 }
9ce12d8b 703
c81760b9 704 if (drvdata->tp) {
9ce12d8b
BM		 705 ret = asus_start_multitouch(hdev);
706 if (ret)
707 goto err_stop_hw;
708 }
709
710 return 0;
711err_stop_hw:
712 hid_hw_stop(hdev);
713 return ret;
714}
715
af22a610
CC		 716static void asus_remove(struct hid_device *hdev)
717{
718 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
719
720 if (drvdata->kbd_backlight) {
721 drvdata->kbd_backlight->removed = true;
722 cancel_work_sync(&drvdata->kbd_backlight->work);
723 }
715e944f
CC		 724
725 hid_hw_stop(hdev);
af22a610
CC		 726}
727
832e1eee
MB		 728static const __u8 asus_g752_fixed_rdesc[] = {
729 0x19, 0x00, /* Usage Minimum (0x00) */
730 0x2A, 0xFF, 0x00, /* Usage Maximum (0xFF) */
731};
732
eeb01a57
YF		 733static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
734 unsigned int *rsize)
735{
9ce12d8b
BM		 736 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
737
738 if (drvdata->quirks & QUIRK_FIX_NOTEBOOK_REPORT &&
739 *rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x65) {
b94f7d5d 740 hid_info(hdev, "Fixing up Asus notebook report descriptor\n");
eeb01a57
YF		 741 rdesc[55] = 0xdd;
742 }
33edee4f 743 /* For the T100TA/T200TA keyboard dock */
76dd1fbe 744 if (drvdata->quirks & QUIRK_T100_KEYBOARD &&
33edee4f
HG		 745 (*rsize == 76 || *rsize == 101) &&
746 rdesc[73] == 0x81 && rdesc[74] == 0x01) {
76dd1fbe
HG		 747 hid_info(hdev, "Fixing up Asus T100 keyb report descriptor\n");
748 rdesc[74] &= ~HID_MAIN_ITEM_CONSTANT;
749 }
5703e52c
HG		 750 /* For the T100CHI keyboard dock */
751 if (drvdata->quirks & QUIRK_T100CHI &&
752 *rsize == 403 && rdesc[388] == 0x09 && rdesc[389] == 0x76) {
753 /*
754 * Change Usage (76h) to Usage Minimum (00h), Usage Maximum
755 * (FFh) and clear the flags in the Input() byte.
756 * Note the descriptor has a bogus 0 byte at the end so we
757 * only need 1 extra byte.
758 */
759 *rsize = 404;
760 rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL);
761 if (!rdesc)
762 return NULL;
763
764 hid_info(hdev, "Fixing up T100CHI keyb report descriptor\n");
765 memmove(rdesc + 392, rdesc + 390, 12);
766 rdesc[388] = 0x19;
767 rdesc[389] = 0x00;
768 rdesc[390] = 0x29;
769 rdesc[391] = 0xff;
770 rdesc[402] = 0x00;
771 }
832e1eee
MB		 772 if (drvdata->quirks & QUIRK_G752_KEYBOARD &&
773 *rsize == 75 && rdesc[61] == 0x15 && rdesc[62] == 0x00) {
774 /* report is missing usage mninum and maximum */
775 __u8 *new_rdesc;
776 size_t new_size = *rsize + sizeof(asus_g752_fixed_rdesc);
777
778 new_rdesc = devm_kzalloc(&hdev->dev, new_size, GFP_KERNEL);
779 if (new_rdesc == NULL)
780 return rdesc;
781
782 hid_info(hdev, "Fixing up Asus G752 keyb report descriptor\n");
783 /* copy the valid part */
784 memcpy(new_rdesc, rdesc, 61);
785 /* insert missing part */
786 memcpy(new_rdesc + 61, asus_g752_fixed_rdesc, sizeof(asus_g752_fixed_rdesc));
787 /* copy remaining data */
788 memcpy(new_rdesc + 61 + sizeof(asus_g752_fixed_rdesc), rdesc + 61, *rsize - 61);
789
790 *rsize = new_size;
791 rdesc = new_rdesc;
792 }
76dd1fbe 793
eeb01a57
YF		 794 return rdesc;
795}
796
797static const struct hid_device_id asus_devices[] = {
9ce12d8b 798 { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
a93913e1 799 USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD), I2C_KEYBOARD_QUIRKS},
9ce12d8b 800 { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
c81760b9 801 USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), I2C_TOUCHPAD_QUIRKS },
1caccc25 802 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
339ee3fc 803 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1), QUIRK_USE_KBD_BACKLIGHT },
1caccc25 804 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
af22a610 805 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT },
832e1eee
MB		 806 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
807 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3), QUIRK_G752_KEYBOARD },
76dd1fbe 808 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
762f948c
HG		 809 USB_DEVICE_ID_ASUSTEK_T100TA_KEYBOARD),
810 QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
811 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
812 USB_DEVICE_ID_ASUSTEK_T100TAF_KEYBOARD),
76dd1fbe 813 QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
5be91803 814 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) },
38b2d78c 815 { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) },
5be91803 816 { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) },
5703e52c
HG		 817 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK,
818 USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), QUIRK_T100CHI },
819
eeb01a57
YF		 820 { }
821};
822MODULE_DEVICE_TABLE(hid, asus_devices);
823
824static struct hid_driver asus_driver = {
9ce12d8b
BM		 825 .name = "asus",
826 .id_table = asus_devices,
827 .report_fixup = asus_report_fixup,
828 .probe = asus_probe,
af22a610 829 .remove = asus_remove,
9ce12d8b
BM		 830 .input_mapping = asus_input_mapping,
831 .input_configured = asus_input_configured,
832#ifdef CONFIG_PM
833 .reset_resume = asus_reset_resume,
834#endif
835 .raw_event = asus_raw_event
eeb01a57
YF		 836};
837module_hid_driver(asus_driver);
838
839MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)