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[mirror_ubuntu-hirsute-kernel.git] / drivers / hid / hid-asus.c
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2874c5fd 1// SPDX-License-Identifier: GPL-2.0-or-later
eeb01a57 2/*
b94f7d5d 3 * HID driver for Asus notebook built-in keyboard.
eeb01a57
YF		 4 * Fixes small logical maximum to match usage maximum.
5 *
b94f7d5d
YF		 6 * Currently supported devices are:
7 * EeeBook X205TA
8 * VivoBook E200HA
9 *
eeb01a57
YF		 10 * Copyright (c) 2016 Yusuke Fujimaki <usk.fujimaki@gmail.com>
11 *
12 * This module based on hid-ortek by
13 * Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com>
14 * Copyright (c) 2011 Jiri Kosina
9ce12d8b
BM		 15 *
16 * This module has been updated to add support for Asus i2c touchpad.
17 *
18 * Copyright (c) 2016 Brendan McGrath <redmcg@redmandi.dyndns.org>
19 * Copyright (c) 2016 Victor Vlasenko <victor.vlasenko@sysgears.com>
20 * Copyright (c) 2016 Frederik Wenigwieser <frederik.wenigwieser@gmail.com>
eeb01a57
YF		 21 */
22
23/*
eeb01a57
YF		 24 */
25
762f948c 26#include <linux/dmi.h>
eeb01a57
YF		 27#include <linux/hid.h>
28#include <linux/module.h>
3b692c55 29#include <linux/platform_data/x86/asus-wmi.h>
9ce12d8b 30#include <linux/input/mt.h>
57573c54 31#include <linux/usb.h> /* For to_usb_interface for T100 touchpad intf check */
6311d329 32#include <linux/power_supply.h>
eeb01a57
YF		 33
34#include "hid-ids.h"
35
9ce12d8b
BM		 36MODULE_AUTHOR("Yusuke Fujimaki <usk.fujimaki@gmail.com>");
37MODULE_AUTHOR("Brendan McGrath <redmcg@redmandi.dyndns.org>");
38MODULE_AUTHOR("Victor Vlasenko <victor.vlasenko@sysgears.com>");
39MODULE_AUTHOR("Frederik Wenigwieser <frederik.wenigwieser@gmail.com>");
40MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
41
57573c54
HG		 42#define T100_TPAD_INTF 2
43
73c75d39 44#define T100CHI_MOUSE_REPORT_ID 0x06
9ce12d8b
BM		 45#define FEATURE_REPORT_ID 0x0d
46#define INPUT_REPORT_ID 0x5d
af22a610 47#define FEATURE_KBD_REPORT_ID 0x5a
af22a610
CC		 48#define FEATURE_KBD_REPORT_SIZE 16
49
50#define SUPPORT_KBD_BACKLIGHT BIT(0)
9ce12d8b 51
9ce12d8b
BM		 52#define MAX_TOUCH_MAJOR 8
53#define MAX_PRESSURE 128
54
9ce12d8b
BM		 55#define BTN_LEFT_MASK 0x01
56#define CONTACT_TOOL_TYPE_MASK 0x80
57#define CONTACT_X_MSB_MASK 0xf0
58#define CONTACT_Y_MSB_MASK 0x0f
59#define CONTACT_TOUCH_MAJOR_MASK 0x07
60#define CONTACT_PRESSURE_MASK 0x7f
61
6311d329
NH		 62#define BATTERY_REPORT_ID (0x03)
63#define BATTERY_REPORT_SIZE (1 + 8)
64#define BATTERY_LEVEL_MAX ((u8)255)
65#define BATTERY_STAT_DISCONNECT (0)
66#define BATTERY_STAT_CHARGING (1)
67#define BATTERY_STAT_FULL (2)
68
9ce12d8b
BM		 69#define QUIRK_FIX_NOTEBOOK_REPORT BIT(0)
70#define QUIRK_NO_INIT_REPORTS BIT(1)
71#define QUIRK_SKIP_INPUT_MAPPING BIT(2)
72#define QUIRK_IS_MULTITOUCH BIT(3)
0485b1ec 73#define QUIRK_NO_CONSUMER_USAGES BIT(4)
af22a610 74#define QUIRK_USE_KBD_BACKLIGHT BIT(5)
76dd1fbe 75#define QUIRK_T100_KEYBOARD BIT(6)
5703e52c 76#define QUIRK_T100CHI BIT(7)
832e1eee 77#define QUIRK_G752_KEYBOARD BIT(8)
0e1f37d1 78#define QUIRK_T101HA_DOCK BIT(9)
300c64d7 79#define QUIRK_T90CHI BIT(10)
9ce12d8b 80
a93913e1 81#define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \
0485b1ec
MH		 82 QUIRK_NO_INIT_REPORTS | \
83 QUIRK_NO_CONSUMER_USAGES)
c81760b9 84#define I2C_TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \
9ce12d8b
BM		 85 QUIRK_SKIP_INPUT_MAPPING | \
86 QUIRK_IS_MULTITOUCH)
87
88#define TRKID_SGN ((TRKID_MAX + 1) >> 1)
89
af22a610
CC		 90struct asus_kbd_leds {
91 struct led_classdev cdev;
92 struct hid_device *hdev;
93 struct work_struct work;
94 unsigned int brightness;
95 bool removed;
96};
97
c81760b9
HG		 98struct asus_touchpad_info {
99 int max_x;
100 int max_y;
b61d43e6
HG		 101 int res_x;
102 int res_y;
c81760b9
HG		 103 int contact_size;
104 int max_contacts;
105};
106
9ce12d8b
BM		 107struct asus_drvdata {
108 unsigned long quirks;
6311d329 109 struct hid_device *hdev;
9ce12d8b 110 struct input_dev *input;
af22a610 111 struct asus_kbd_leds *kbd_backlight;
c81760b9 112 const struct asus_touchpad_info *tp;
af22a610 113 bool enable_backlight;
6311d329
NH		 114 struct power_supply *battery;
115 struct power_supply_desc battery_desc;
116 int battery_capacity;
117 int battery_stat;
118 bool battery_in_query;
119 unsigned long battery_next_query;
9ce12d8b
BM		 120};
121
6311d329
NH		 122static int asus_report_battery(struct asus_drvdata *, u8 *, int);
123
c81760b9
HG		 124static const struct asus_touchpad_info asus_i2c_tp = {
125 .max_x = 2794,
126 .max_y = 1758,
127 .contact_size = 5,
128 .max_contacts = 5,
129};
130
131static const struct asus_touchpad_info asus_t100ta_tp = {
132 .max_x = 2240,
25cc2611 133 .max_y = 1120,
b61d43e6
HG		 134 .res_x = 30, /* units/mm */
135 .res_y = 27, /* units/mm */
c81760b9
HG		 136 .contact_size = 5,
137 .max_contacts = 5,
138};
139
762f948c
HG		 140static const struct asus_touchpad_info asus_t100ha_tp = {
141 .max_x = 2640,
142 .max_y = 1320,
143 .res_x = 30, /* units/mm */
144 .res_y = 29, /* units/mm */
145 .contact_size = 5,
146 .max_contacts = 5,
147};
148
dbd3ef28
HG		 149static const struct asus_touchpad_info asus_t200ta_tp = {
150 .max_x = 3120,
151 .max_y = 1716,
152 .res_x = 30, /* units/mm */
153 .res_y = 28, /* units/mm */
154 .contact_size = 5,
155 .max_contacts = 5,
156};
157
73c75d39
HG		 158static const struct asus_touchpad_info asus_t100chi_tp = {
159 .max_x = 2640,
160 .max_y = 1320,
161 .res_x = 31, /* units/mm */
162 .res_y = 29, /* units/mm */
163 .contact_size = 3,
164 .max_contacts = 4,
165};
166
c81760b9 167static void asus_report_contact_down(struct asus_drvdata *drvdat,
9ce12d8b
BM		 168 int toolType, u8 *data)
169{
c81760b9
HG		 170 struct input_dev *input = drvdat->input;
171 int touch_major, pressure, x, y;
172
173 x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1];
174 y = drvdat->tp->max_y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]);
9ce12d8b 175
73c75d39
HG		 176 input_report_abs(input, ABS_MT_POSITION_X, x);
177 input_report_abs(input, ABS_MT_POSITION_Y, y);
178
179 if (drvdat->tp->contact_size < 5)
180 return;
181
9ce12d8b
BM		 182 if (toolType == MT_TOOL_PALM) {
183 touch_major = MAX_TOUCH_MAJOR;
184 pressure = MAX_PRESSURE;
185 } else {
186 touch_major = (data[3] >> 4) & CONTACT_TOUCH_MAJOR_MASK;
187 pressure = data[4] & CONTACT_PRESSURE_MASK;
188 }
189
9ce12d8b
BM		 190 input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major);
191 input_report_abs(input, ABS_MT_PRESSURE, pressure);
192}
193
194/* Required for Synaptics Palm Detection */
c81760b9 195static void asus_report_tool_width(struct asus_drvdata *drvdat)
9ce12d8b 196{
c81760b9 197 struct input_mt *mt = drvdat->input->mt;
9ce12d8b
BM		 198 struct input_mt_slot *oldest;
199 int oldid, count, i;
200
73c75d39
HG		 201 if (drvdat->tp->contact_size < 5)
202 return;
203
9ce12d8b
BM		 204 oldest = NULL;
205 oldid = mt->trkid;
206 count = 0;
207
208 for (i = 0; i < mt->num_slots; ++i) {
209 struct input_mt_slot *ps = &mt->slots[i];
210 int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID);
211
212 if (id < 0)
213 continue;
214 if ((id - oldid) & TRKID_SGN) {
215 oldest = ps;
216 oldid = id;
217 }
218 count++;
219 }
220
221 if (oldest) {
c81760b9 222 input_report_abs(drvdat->input, ABS_TOOL_WIDTH,
9ce12d8b
BM		 223 input_mt_get_value(oldest, ABS_MT_TOUCH_MAJOR));
224 }
225}
226
c81760b9 227static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size)
9ce12d8b 228{
73c75d39 229 int i, toolType = MT_TOOL_FINGER;
9ce12d8b
BM		 230 u8 *contactData = data + 2;
231
c81760b9
HG		 232 if (size != 3 + drvdat->tp->contact_size * drvdat->tp->max_contacts)
233 return 0;
234
235 for (i = 0; i < drvdat->tp->max_contacts; i++) {
9ce12d8b 236 bool down = !!(data[1] & BIT(i+3));
73c75d39
HG		 237
238 if (drvdat->tp->contact_size >= 5)
239 toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ?
9ce12d8b
BM		 240 MT_TOOL_PALM : MT_TOOL_FINGER;
241
c81760b9
HG		 242 input_mt_slot(drvdat->input, i);
243 input_mt_report_slot_state(drvdat->input, toolType, down);
9ce12d8b
BM		 244
245 if (down) {
c81760b9
HG		 246 asus_report_contact_down(drvdat, toolType, contactData);
247 contactData += drvdat->tp->contact_size;
9ce12d8b
BM		 248 }
249 }
250
c81760b9
HG		 251 input_report_key(drvdat->input, BTN_LEFT, data[1] & BTN_LEFT_MASK);
252 asus_report_tool_width(drvdat);
253
254 input_mt_sync_frame(drvdat->input);
255 input_sync(drvdat->input);
9ce12d8b 256
c81760b9 257 return 1;
9ce12d8b
BM		 258}
259
e98e3809
HG		 260static int asus_event(struct hid_device *hdev, struct hid_field *field,
261 struct hid_usage *usage, __s32 value)
262{
263 if ((usage->hid & HID_USAGE_PAGE) == 0xff310000 &&
c07a0254
HG		 264 (usage->hid & HID_USAGE) != 0x00 &&
265 (usage->hid & HID_USAGE) != 0xff && !usage->type) {
e98e3809
HG		 266 hid_warn(hdev, "Unmapped Asus vendor usagepage code 0x%02x\n",
267 usage->hid & HID_USAGE);
268 }
269
270 return 0;
271}
272
9ce12d8b
BM		 273static int asus_raw_event(struct hid_device *hdev,
274 struct hid_report *report, u8 *data, int size)
275{
276 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
277
6311d329
NH		 278 if (drvdata->battery && data[0] == BATTERY_REPORT_ID)
279 return asus_report_battery(drvdata, data, size);
280
c81760b9
HG		 281 if (drvdata->tp && data[0] == INPUT_REPORT_ID)
282 return asus_report_input(drvdata, data, size);
9ce12d8b
BM		 283
284 return 0;
285}
286
af22a610
CC		 287static int asus_kbd_set_report(struct hid_device *hdev, u8 *buf, size_t buf_size)
288{
289 unsigned char *dmabuf;
290 int ret;
291
292 dmabuf = kmemdup(buf, buf_size, GFP_KERNEL);
293 if (!dmabuf)
294 return -ENOMEM;
295
296 ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, dmabuf,
297 buf_size, HID_FEATURE_REPORT,
298 HID_REQ_SET_REPORT);
299 kfree(dmabuf);
300
301 return ret;
302}
303
304static int asus_kbd_init(struct hid_device *hdev)
305{
306 u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x41, 0x53, 0x55, 0x53, 0x20, 0x54,
307 0x65, 0x63, 0x68, 0x2e, 0x49, 0x6e, 0x63, 0x2e, 0x00 };
308 int ret;
309
310 ret = asus_kbd_set_report(hdev, buf, sizeof(buf));
311 if (ret < 0)
312 hid_err(hdev, "Asus failed to send init command: %d\n", ret);
313
314 return ret;
315}
316
317static int asus_kbd_get_functions(struct hid_device *hdev,
318 unsigned char *kbd_func)
319{
320 u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x05, 0x20, 0x31, 0x00, 0x08 };
321 u8 *readbuf;
322 int ret;
323
324 ret = asus_kbd_set_report(hdev, buf, sizeof(buf));
325 if (ret < 0) {
326 hid_err(hdev, "Asus failed to send configuration command: %d\n", ret);
327 return ret;
328 }
329
330 readbuf = kzalloc(FEATURE_KBD_REPORT_SIZE, GFP_KERNEL);
331 if (!readbuf)
332 return -ENOMEM;
333
334 ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, readbuf,
335 FEATURE_KBD_REPORT_SIZE, HID_FEATURE_REPORT,
336 HID_REQ_GET_REPORT);
337 if (ret < 0) {
338 hid_err(hdev, "Asus failed to request functions: %d\n", ret);
339 kfree(readbuf);
340 return ret;
341 }
342
343 *kbd_func = readbuf[6];
344
345 kfree(readbuf);
346 return ret;
347}
348
349static void asus_kbd_backlight_set(struct led_classdev *led_cdev,
350 enum led_brightness brightness)
351{
352 struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
353 cdev);
354 if (led->brightness == brightness)
355 return;
356
357 led->brightness = brightness;
358 schedule_work(&led->work);
359}
360
361static enum led_brightness asus_kbd_backlight_get(struct led_classdev *led_cdev)
362{
363 struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
364 cdev);
365
366 return led->brightness;
367}
368
369static void asus_kbd_backlight_work(struct work_struct *work)
370{
371 struct asus_kbd_leds *led = container_of(work, struct asus_kbd_leds, work);
372 u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4, 0x00 };
373 int ret;
374
375 if (led->removed)
376 return;
377
378 buf[4] = led->brightness;
379
380 ret = asus_kbd_set_report(led->hdev, buf, sizeof(buf));
381 if (ret < 0)
382 hid_err(led->hdev, "Asus failed to set keyboard backlight: %d\n", ret);
383}
384
3b692c55
DD		 385/* WMI-based keyboard backlight LED control (via asus-wmi driver) takes
386 * precedence. We only activate HID-based backlight control when the
387 * WMI control is not available.
388 */
389static bool asus_kbd_wmi_led_control_present(struct hid_device *hdev)
390{
391 u32 value;
392 int ret;
393
3fc202e8
AB		 394 if (!IS_ENABLED(CONFIG_ASUS_WMI))
395 return false;
396
e0668f28 397 ret = asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS,
3b692c55
DD		 398 ASUS_WMI_DEVID_KBD_BACKLIGHT, 0, &value);
399 hid_dbg(hdev, "WMI backlight check: rc %d value %x", ret, value);
400 if (ret)
401 return false;
402
403 return !!(value & ASUS_WMI_DSTS_PRESENCE_BIT);
404}
405
af22a610
CC		 406static int asus_kbd_register_leds(struct hid_device *hdev)
407{
408 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
409 unsigned char kbd_func;
410 int ret;
411
412 /* Initialize keyboard */
413 ret = asus_kbd_init(hdev);
414 if (ret < 0)
415 return ret;
416
417 /* Get keyboard functions */
418 ret = asus_kbd_get_functions(hdev, &kbd_func);
419 if (ret < 0)
420 return ret;
421
422 /* Check for backlight support */
423 if (!(kbd_func & SUPPORT_KBD_BACKLIGHT))
424 return -ENODEV;
425
426 drvdata->kbd_backlight = devm_kzalloc(&hdev->dev,
427 sizeof(struct asus_kbd_leds),
428 GFP_KERNEL);
429 if (!drvdata->kbd_backlight)
430 return -ENOMEM;
431
432 drvdata->kbd_backlight->removed = false;
433 drvdata->kbd_backlight->brightness = 0;
434 drvdata->kbd_backlight->hdev = hdev;
435 drvdata->kbd_backlight->cdev.name = "asus::kbd_backlight";
436 drvdata->kbd_backlight->cdev.max_brightness = 3;
437 drvdata->kbd_backlight->cdev.brightness_set = asus_kbd_backlight_set;
438 drvdata->kbd_backlight->cdev.brightness_get = asus_kbd_backlight_get;
439 INIT_WORK(&drvdata->kbd_backlight->work, asus_kbd_backlight_work);
440
441 ret = devm_led_classdev_register(&hdev->dev, &drvdata->kbd_backlight->cdev);
442 if (ret < 0) {
443 /* No need to have this still around */
444 devm_kfree(&hdev->dev, drvdata->kbd_backlight);
445 }
446
447 return ret;
448}
449
6311d329
NH		 450/*
451 * [0] REPORT_ID (same value defined in report descriptor)
452 * [1] rest battery level. range [0..255]
453 * [2]..[7] Bluetooth hardware address (MAC address)
454 * [8] charging status
455 * = 0 : AC offline / discharging
456 * = 1 : AC online / charging
457 * = 2 : AC online / fully charged
458 */
459static int asus_parse_battery(struct asus_drvdata *drvdata, u8 *data, int size)
460{
461 u8 sts;
462 u8 lvl;
463 int val;
464
465 lvl = data[1];
466 sts = data[8];
467
468 drvdata->battery_capacity = ((int)lvl * 100) / (int)BATTERY_LEVEL_MAX;
469
470 switch (sts) {
471 case BATTERY_STAT_CHARGING:
472 val = POWER_SUPPLY_STATUS_CHARGING;
473 break;
474 case BATTERY_STAT_FULL:
475 val = POWER_SUPPLY_STATUS_FULL;
476 break;
477 case BATTERY_STAT_DISCONNECT:
478 default:
479 val = POWER_SUPPLY_STATUS_DISCHARGING;
480 break;
481 }
482 drvdata->battery_stat = val;
483
484 return 0;
485}
486
487static int asus_report_battery(struct asus_drvdata *drvdata, u8 *data, int size)
488{
489 /* notify only the autonomous event by device */
490 if ((drvdata->battery_in_query == false) &&
491 (size == BATTERY_REPORT_SIZE))
492 power_supply_changed(drvdata->battery);
493
494 return 0;
495}
496
497static int asus_battery_query(struct asus_drvdata *drvdata)
498{
499 u8 *buf;
500 int ret = 0;
501
502 buf = kmalloc(BATTERY_REPORT_SIZE, GFP_KERNEL);
503 if (!buf)
504 return -ENOMEM;
505
506 drvdata->battery_in_query = true;
507 ret = hid_hw_raw_request(drvdata->hdev, BATTERY_REPORT_ID,
508 buf, BATTERY_REPORT_SIZE,
509 HID_INPUT_REPORT, HID_REQ_GET_REPORT);
510 drvdata->battery_in_query = false;
511 if (ret == BATTERY_REPORT_SIZE)
512 ret = asus_parse_battery(drvdata, buf, BATTERY_REPORT_SIZE);
513 else
514 ret = -ENODATA;
515
516 kfree(buf);
517
518 return ret;
519}
520
521static enum power_supply_property asus_battery_props[] = {
522 POWER_SUPPLY_PROP_STATUS,
523 POWER_SUPPLY_PROP_PRESENT,
524 POWER_SUPPLY_PROP_CAPACITY,
525 POWER_SUPPLY_PROP_SCOPE,
526 POWER_SUPPLY_PROP_MODEL_NAME,
527};
528
529#define QUERY_MIN_INTERVAL (60 * HZ) /* 60[sec] */
530
531static int asus_battery_get_property(struct power_supply *psy,
532 enum power_supply_property psp,
533 union power_supply_propval *val)
534{
535 struct asus_drvdata *drvdata = power_supply_get_drvdata(psy);
536 int ret = 0;
537
538 switch (psp) {
539 case POWER_SUPPLY_PROP_STATUS:
540 case POWER_SUPPLY_PROP_CAPACITY:
541 if (time_before(drvdata->battery_next_query, jiffies)) {
542 drvdata->battery_next_query =
543 jiffies + QUERY_MIN_INTERVAL;
544 ret = asus_battery_query(drvdata);
545 if (ret)
546 return ret;
547 }
548 if (psp == POWER_SUPPLY_PROP_STATUS)
549 val->intval = drvdata->battery_stat;
550 else
551 val->intval = drvdata->battery_capacity;
552 break;
553 case POWER_SUPPLY_PROP_PRESENT:
554 val->intval = 1;
555 break;
556 case POWER_SUPPLY_PROP_SCOPE:
557 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
558 break;
559 case POWER_SUPPLY_PROP_MODEL_NAME:
560 val->strval = drvdata->hdev->name;
561 break;
562 default:
563 ret = -EINVAL;
564 break;
565 }
566
567 return ret;
568}
569
570static int asus_battery_probe(struct hid_device *hdev)
571{
572 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
573 struct power_supply_config pscfg = { .drv_data = drvdata };
574 int ret = 0;
575
576 drvdata->battery_capacity = 0;
577 drvdata->battery_stat = POWER_SUPPLY_STATUS_UNKNOWN;
578 drvdata->battery_in_query = false;
579
580 drvdata->battery_desc.properties = asus_battery_props;
581 drvdata->battery_desc.num_properties = ARRAY_SIZE(asus_battery_props);
582 drvdata->battery_desc.get_property = asus_battery_get_property;
583 drvdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
584 drvdata->battery_desc.use_for_apm = 0;
585 drvdata->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
586 "asus-keyboard-%s-battery",
587 strlen(hdev->uniq) ?
588 hdev->uniq : dev_name(&hdev->dev));
589 if (!drvdata->battery_desc.name)
590 return -ENOMEM;
591
592 drvdata->battery_next_query = jiffies;
593
594 drvdata->battery = devm_power_supply_register(&hdev->dev,
595 &(drvdata->battery_desc), &pscfg);
596 if (IS_ERR(drvdata->battery)) {
597 ret = PTR_ERR(drvdata->battery);
598 drvdata->battery = NULL;
599 hid_err(hdev, "Unable to register battery device\n");
600 return ret;
601 }
602
603 power_supply_powers(drvdata->battery, &hdev->dev);
604
605 return ret;
606}
607
9ce12d8b
BM		 608static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi)
609{
c8b1b3dd 610 struct input_dev *input = hi->input;
9ce12d8b
BM		 611 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
612
73c75d39
HG		 613 /* T100CHI uses MULTI_INPUT, bind the touchpad to the mouse hid_input */
614 if (drvdata->quirks & QUIRK_T100CHI &&
615 hi->report->id != T100CHI_MOUSE_REPORT_ID)
616 return 0;
617
c81760b9 618 if (drvdata->tp) {
9ce12d8b 619 int ret;
9ce12d8b 620
c81760b9
HG		 621 input_set_abs_params(input, ABS_MT_POSITION_X, 0,
622 drvdata->tp->max_x, 0, 0);
623 input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
624 drvdata->tp->max_y, 0, 0);
b61d43e6
HG		 625 input_abs_set_res(input, ABS_MT_POSITION_X, drvdata->tp->res_x);
626 input_abs_set_res(input, ABS_MT_POSITION_Y, drvdata->tp->res_y);
73c75d39
HG		 627
628 if (drvdata->tp->contact_size >= 5) {
629 input_set_abs_params(input, ABS_TOOL_WIDTH, 0,
630 MAX_TOUCH_MAJOR, 0, 0);
631 input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0,
632 MAX_TOUCH_MAJOR, 0, 0);
633 input_set_abs_params(input, ABS_MT_PRESSURE, 0,
634 MAX_PRESSURE, 0, 0);
635 }
9ce12d8b
BM		 636
637 __set_bit(BTN_LEFT, input->keybit);
638 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
639
c81760b9
HG		 640 ret = input_mt_init_slots(input, drvdata->tp->max_contacts,
641 INPUT_MT_POINTER);
9ce12d8b
BM		 642
643 if (ret) {
644 hid_err(hdev, "Asus input mt init slots failed: %d\n", ret);
645 return ret;
646 }
9ce12d8b
BM		 647 }
648
c8b1b3dd
BM		 649 drvdata->input = input;
650
3b692c55
DD		 651 if (drvdata->enable_backlight &&
652 !asus_kbd_wmi_led_control_present(hdev) &&
653 asus_kbd_register_leds(hdev))
af22a610
CC		 654 hid_warn(hdev, "Failed to initialize backlight.\n");
655
9ce12d8b
BM		 656 return 0;
657}
658
a93913e1 659#define asus_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \
1caccc25 660 max, EV_KEY, (c))
9ce12d8b
BM		 661static int asus_input_mapping(struct hid_device *hdev,
662 struct hid_input *hi, struct hid_field *field,
663 struct hid_usage *usage, unsigned long **bit,
664 int *max)
665{
666 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
667
668 if (drvdata->quirks & QUIRK_SKIP_INPUT_MAPPING) {
669 /* Don't map anything from the HID report.
670 * We do it all manually in asus_input_configured
671 */
672 return -1;
673 }
674
73c75d39
HG		 675 /*
676 * Ignore a bunch of bogus collections in the T100CHI descriptor.
677 * This avoids a bunch of non-functional hid_input devices getting
678 * created because of the T100CHI using HID_QUIRK_MULTI_INPUT.
679 */
300c64d7 680 if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
73c75d39
HG		 681 if (field->application == (HID_UP_GENDESK | 0x0080) ||
682 usage->hid == (HID_UP_GENDEVCTRLS | 0x0024) ||
683 usage->hid == (HID_UP_GENDEVCTRLS | 0x0025) ||
684 usage->hid == (HID_UP_GENDEVCTRLS | 0x0026))
685 return -1;
686 /*
687 * We use the hid_input for the mouse report for the touchpad,
688 * keep the left button, to avoid the core removing it.
689 */
690 if (field->application == HID_GD_MOUSE &&
691 usage->hid != (HID_UP_BUTTON | 1))
692 return -1;
693 }
694
a93913e1 695 /* ASUS-specific keyboard hotkeys */
1caccc25
CC		 696 if ((usage->hid & HID_USAGE_PAGE) == 0xff310000) {
697 set_bit(EV_REP, hi->input->evbit);
698 switch (usage->hid & HID_USAGE) {
a93913e1
MH		 699 case 0x10: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break;
700 case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP); break;
701 case 0x35: asus_map_key_clear(KEY_DISPLAY_OFF); break;
702 case 0x6c: asus_map_key_clear(KEY_SLEEP); break;
2340bad5 703 case 0x7c: asus_map_key_clear(KEY_MICMUTE); break;
a93913e1 704 case 0x82: asus_map_key_clear(KEY_CAMERA); break;
802b24b4 705 case 0x88: asus_map_key_clear(KEY_RFKILL); break;
a93913e1
MH		 706 case 0xb5: asus_map_key_clear(KEY_CALC); break;
707 case 0xc4: asus_map_key_clear(KEY_KBDILLUMUP); break;
708 case 0xc5: asus_map_key_clear(KEY_KBDILLUMDOWN); break;
1caccc25
CC		 709
710 /* ASUS touchpad toggle */
a93913e1 711 case 0x6b: asus_map_key_clear(KEY_F21); break;
1caccc25
CC		 712
713 /* ROG key */
a93913e1 714 case 0x38: asus_map_key_clear(KEY_PROG1); break;
1caccc25
CC		 715
716 /* Fn+C ASUS Splendid */
a93913e1 717 case 0xba: asus_map_key_clear(KEY_PROG2); break;
1caccc25
CC		 718
719 /* Fn+Space Power4Gear Hybrid */
a93913e1 720 case 0x5c: asus_map_key_clear(KEY_PROG3); break;
1caccc25 721
2340bad5
HG		 722 /* Fn+F5 "fan" symbol on FX503VD */
723 case 0x99: asus_map_key_clear(KEY_PROG4); break;
724
1caccc25 725 default:
0485b1ec
MH		 726 /* ASUS lazily declares 256 usages, ignore the rest,
727 * as some make the keyboard appear as a pointer device. */
728 return -1;
1caccc25 729 }
af22a610
CC		 730
731 /*
732 * Check and enable backlight only on devices with UsagePage ==
733 * 0xff31 to avoid initializing the keyboard firmware multiple
734 * times on devices with multiple HID descriptors but same
735 * PID/VID.
736 */
737 if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT)
738 drvdata->enable_backlight = true;
739
1caccc25
CC		 740 return 1;
741 }
742
5be91803
DD		 743 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) {
744 set_bit(EV_REP, hi->input->evbit);
745 switch (usage->hid & HID_USAGE) {
746 case 0xff01: asus_map_key_clear(BTN_1); break;
747 case 0xff02: asus_map_key_clear(BTN_2); break;
748 case 0xff03: asus_map_key_clear(BTN_3); break;
749 case 0xff04: asus_map_key_clear(BTN_4); break;
750 case 0xff05: asus_map_key_clear(BTN_5); break;
751 case 0xff06: asus_map_key_clear(BTN_6); break;
752 case 0xff07: asus_map_key_clear(BTN_7); break;
753 case 0xff08: asus_map_key_clear(BTN_8); break;
754 case 0xff09: asus_map_key_clear(BTN_9); break;
755 case 0xff0a: asus_map_key_clear(BTN_A); break;
756 case 0xff0b: asus_map_key_clear(BTN_B); break;
757 case 0x00f1: asus_map_key_clear(KEY_WLAN); break;
758 case 0x00f2: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break;
759 case 0x00f3: asus_map_key_clear(KEY_BRIGHTNESSUP); break;
760 case 0x00f4: asus_map_key_clear(KEY_DISPLAY_OFF); break;
761 case 0x00f7: asus_map_key_clear(KEY_CAMERA); break;
762 case 0x00f8: asus_map_key_clear(KEY_PROG1); break;
763 default:
764 return 0;
765 }
766
767 return 1;
768 }
769
0485b1ec
MH		 770 if (drvdata->quirks & QUIRK_NO_CONSUMER_USAGES &&
771 (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
772 switch (usage->hid & HID_USAGE) {
773 case 0xe2: /* Mute */
774 case 0xe9: /* Volume up */
775 case 0xea: /* Volume down */
776 return 0;
777 default:
778 /* Ignore dummy Consumer usages which make the
779 * keyboard incorrectly appear as a pointer device.
780 */
781 return -1;
782 }
783 }
784
9ce12d8b
BM		 785 return 0;
786}
787
788static int asus_start_multitouch(struct hid_device *hdev)
789{
790 int ret;
b9ec7009
CIK		 791 static const unsigned char buf[] = {
792 FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00
793 };
9ce12d8b
BM		 794 unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL);
795
796 if (!dmabuf) {
797 ret = -ENOMEM;
798 hid_err(hdev, "Asus failed to alloc dma buf: %d\n", ret);
799 return ret;
800 }
801
802 ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, sizeof(buf),
803 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
804
805 kfree(dmabuf);
806
807 if (ret != sizeof(buf)) {
808 hid_err(hdev, "Asus failed to start multitouch: %d\n", ret);
809 return ret;
810 }
811
812 return 0;
813}
814
815static int __maybe_unused asus_reset_resume(struct hid_device *hdev)
816{
817 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
818
c81760b9 819 if (drvdata->tp)
9ce12d8b
BM		 820 return asus_start_multitouch(hdev);
821
822 return 0;
823}
824
825static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
826{
827 int ret;
828 struct asus_drvdata *drvdata;
829
830 drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
831 if (drvdata == NULL) {
832 hid_err(hdev, "Can't alloc Asus descriptor\n");
833 return -ENOMEM;
834 }
835
836 hid_set_drvdata(hdev, drvdata);
837
838 drvdata->quirks = id->driver_data;
839
6311d329
NH		 840 /*
841 * T90CHI's keyboard dock returns same ID values as T100CHI's dock.
842 * Thus, identify T90CHI dock with product name string.
843 */
300c64d7
NH		 844 if (strstr(hdev->name, "T90CHI")) {
845 drvdata->quirks &= ~QUIRK_T100CHI;
846 drvdata->quirks |= QUIRK_T90CHI;
847 }
848
c81760b9
HG		 849 if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
850 drvdata->tp = &asus_i2c_tp;
851
57573c54
HG		 852 if (drvdata->quirks & QUIRK_T100_KEYBOARD) {
853 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
854
c81760b9
HG		 855 if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) {
856 drvdata->quirks = QUIRK_SKIP_INPUT_MAPPING;
762f948c 857 /*
dbd3ef28
HG		 858 * The T100HA uses the same USB-ids as the T100TAF and
859 * the T200TA uses the same USB-ids as the T100TA, while
860 * both have different max x/y values as the T100TA[F].
762f948c
HG		 861 */
862 if (dmi_match(DMI_PRODUCT_NAME, "T100HAN"))
863 drvdata->tp = &asus_t100ha_tp;
dbd3ef28
HG		 864 else if (dmi_match(DMI_PRODUCT_NAME, "T200TA"))
865 drvdata->tp = &asus_t200ta_tp;
762f948c
HG		 866 else
867 drvdata->tp = &asus_t100ta_tp;
c81760b9 868 }
57573c54
HG		 869 }
870
73c75d39
HG		 871 if (drvdata->quirks & QUIRK_T100CHI) {
872 /*
873 * All functionality is on a single HID interface and for
874 * userspace the touchpad must be a separate input_dev.
875 */
39335d1c 876 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
73c75d39
HG		 877 drvdata->tp = &asus_t100chi_tp;
878 }
879
9ce12d8b
BM		 880 if (drvdata->quirks & QUIRK_NO_INIT_REPORTS)
881 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
882
6311d329
NH		 883 drvdata->hdev = hdev;
884
885 if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
886 ret = asus_battery_probe(hdev);
887 if (ret) {
888 hid_err(hdev,
889 "Asus hid battery_probe failed: %d\n", ret);
890 return ret;
891 }
892 }
893
9ce12d8b
BM		 894 ret = hid_parse(hdev);
895 if (ret) {
896 hid_err(hdev, "Asus hid parse failed: %d\n", ret);
897 return ret;
898 }
899
0e1f37d1
ARN		 900 /* use hid-multitouch for T101HA touchpad */
901 if (id->driver_data & QUIRK_T101HA_DOCK &&
902 hdev->collection->usage == HID_GD_MOUSE)
903 return -ENODEV;
904
9ce12d8b
BM		 905 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
906 if (ret) {
907 hid_err(hdev, "Asus hw start failed: %d\n", ret);
908 return ret;
909 }
910
911 if (!drvdata->input) {
912 hid_err(hdev, "Asus input not registered\n");
913 ret = -ENOMEM;
914 goto err_stop_hw;
915 }
916
c81760b9 917 if (drvdata->tp) {
c8b1b3dd
BM		 918 drvdata->input->name = "Asus TouchPad";
919 } else {
920 drvdata->input->name = "Asus Keyboard";
921 }
9ce12d8b 922
c81760b9 923 if (drvdata->tp) {
9ce12d8b
BM		 924 ret = asus_start_multitouch(hdev);
925 if (ret)
926 goto err_stop_hw;
927 }
928
929 return 0;
930err_stop_hw:
931 hid_hw_stop(hdev);
932 return ret;
933}
934
af22a610
CC		 935static void asus_remove(struct hid_device *hdev)
936{
937 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
938
939 if (drvdata->kbd_backlight) {
940 drvdata->kbd_backlight->removed = true;
941 cancel_work_sync(&drvdata->kbd_backlight->work);
942 }
715e944f
CC		 943
944 hid_hw_stop(hdev);
af22a610
CC		 945}
946
832e1eee
MB		 947static const __u8 asus_g752_fixed_rdesc[] = {
948 0x19, 0x00, /* Usage Minimum (0x00) */
949 0x2A, 0xFF, 0x00, /* Usage Maximum (0xFF) */
950};
951
eeb01a57
YF		 952static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
953 unsigned int *rsize)
954{
9ce12d8b
BM		 955 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
956
957 if (drvdata->quirks & QUIRK_FIX_NOTEBOOK_REPORT &&
958 *rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x65) {
b94f7d5d 959 hid_info(hdev, "Fixing up Asus notebook report descriptor\n");
eeb01a57
YF		 960 rdesc[55] = 0xdd;
961 }
33edee4f 962 /* For the T100TA/T200TA keyboard dock */
76dd1fbe 963 if (drvdata->quirks & QUIRK_T100_KEYBOARD &&
33edee4f
HG		 964 (*rsize == 76 || *rsize == 101) &&
965 rdesc[73] == 0x81 && rdesc[74] == 0x01) {
76dd1fbe
HG		 966 hid_info(hdev, "Fixing up Asus T100 keyb report descriptor\n");
967 rdesc[74] &= ~HID_MAIN_ITEM_CONSTANT;
968 }
300c64d7
NH		 969 /* For the T100CHI/T90CHI keyboard dock */
970 if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
971 int rsize_orig;
972 int offs;
973
974 if (drvdata->quirks & QUIRK_T100CHI) {
975 rsize_orig = 403;
976 offs = 388;
977 } else {
978 rsize_orig = 306;
979 offs = 291;
980 }
981
5703e52c
HG		 982 /*
983 * Change Usage (76h) to Usage Minimum (00h), Usage Maximum
984 * (FFh) and clear the flags in the Input() byte.
985 * Note the descriptor has a bogus 0 byte at the end so we
986 * only need 1 extra byte.
987 */
300c64d7
NH		 988 if (*rsize == rsize_orig &&
989 rdesc[offs] == 0x09 && rdesc[offs + 1] == 0x76) {
990 *rsize = rsize_orig + 1;
991 rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL);
992 if (!rdesc)
993 return NULL;
994
995 hid_info(hdev, "Fixing up %s keyb report descriptor\n",
996 drvdata->quirks & QUIRK_T100CHI ?
997 "T100CHI" : "T90CHI");
998 memmove(rdesc + offs + 4, rdesc + offs + 2, 12);
999 rdesc[offs] = 0x19;
1000 rdesc[offs + 1] = 0x00;
1001 rdesc[offs + 2] = 0x29;
1002 rdesc[offs + 3] = 0xff;
1003 rdesc[offs + 14] = 0x00;
1004 }
5703e52c 1005 }
300c64d7 1006
832e1eee
MB		 1007 if (drvdata->quirks & QUIRK_G752_KEYBOARD &&
1008 *rsize == 75 && rdesc[61] == 0x15 && rdesc[62] == 0x00) {
1009 /* report is missing usage mninum and maximum */
1010 __u8 *new_rdesc;
1011 size_t new_size = *rsize + sizeof(asus_g752_fixed_rdesc);
1012
1013 new_rdesc = devm_kzalloc(&hdev->dev, new_size, GFP_KERNEL);
1014 if (new_rdesc == NULL)
1015 return rdesc;
1016
1017 hid_info(hdev, "Fixing up Asus G752 keyb report descriptor\n");
1018 /* copy the valid part */
1019 memcpy(new_rdesc, rdesc, 61);
1020 /* insert missing part */
1021 memcpy(new_rdesc + 61, asus_g752_fixed_rdesc, sizeof(asus_g752_fixed_rdesc));
1022 /* copy remaining data */
1023 memcpy(new_rdesc + 61 + sizeof(asus_g752_fixed_rdesc), rdesc + 61, *rsize - 61);
1024
1025 *rsize = new_size;
1026 rdesc = new_rdesc;
1027 }
76dd1fbe 1028
eeb01a57
YF		 1029 return rdesc;
1030}
1031
1032static const struct hid_device_id asus_devices[] = {
9ce12d8b 1033 { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
a93913e1 1034 USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD), I2C_KEYBOARD_QUIRKS},
9ce12d8b 1035 { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
c81760b9 1036 USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), I2C_TOUCHPAD_QUIRKS },
1caccc25 1037 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
339ee3fc 1038 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1), QUIRK_USE_KBD_BACKLIGHT },
1caccc25 1039 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
af22a610 1040 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT },
832e1eee
MB		 1041 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1042 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3), QUIRK_G752_KEYBOARD },
2340bad5
HG		 1043 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1044 USB_DEVICE_ID_ASUSTEK_FX503VD_KEYBOARD),
1045 QUIRK_USE_KBD_BACKLIGHT },
76dd1fbe 1046 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
762f948c
HG		 1047 USB_DEVICE_ID_ASUSTEK_T100TA_KEYBOARD),
1048 QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
1049 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1050 USB_DEVICE_ID_ASUSTEK_T100TAF_KEYBOARD),
76dd1fbe 1051 QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
0e1f37d1
ARN		 1052 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1053 USB_DEVICE_ID_ASUSTEK_T101HA_KEYBOARD), QUIRK_T101HA_DOCK },
5be91803 1054 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) },
38b2d78c 1055 { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) },
5be91803 1056 { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) },
5703e52c
HG		 1057 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK,
1058 USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), QUIRK_T100CHI },
1059
eeb01a57
YF		 1060 { }
1061};
1062MODULE_DEVICE_TABLE(hid, asus_devices);
1063
1064static struct hid_driver asus_driver = {
9ce12d8b
BM		 1065 .name = "asus",
1066 .id_table = asus_devices,
1067 .report_fixup = asus_report_fixup,
1068 .probe = asus_probe,
af22a610 1069 .remove = asus_remove,
9ce12d8b
BM		 1070 .input_mapping = asus_input_mapping,
1071 .input_configured = asus_input_configured,
1072#ifdef CONFIG_PM
1073 .reset_resume = asus_reset_resume,
1074#endif
e98e3809 1075 .event = asus_event,
9ce12d8b 1076 .raw_event = asus_raw_event
eeb01a57
YF		 1077};
1078module_hid_driver(asus_driver);
1079
1080MODULE_LICENSE("GPL");
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