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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * HID driver for Asus notebook built-in keyboard.
4 * Fixes small logical maximum to match usage maximum.
5 *
6 * Currently supported devices are:
7 * EeeBook X205TA
8 * VivoBook E200HA
9 *
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
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>
21 */
22
23/*
24 */
25
26#include <linux/dmi.h>
27#include <linux/hid.h>
28#include <linux/module.h>
29#include <linux/platform_data/x86/asus-wmi.h>
30#include <linux/input/mt.h>
31#include <linux/usb.h> /* For to_usb_interface for T100 touchpad intf check */
32#include <linux/power_supply.h>
33#include <linux/leds.h>
34
35#include "hid-ids.h"
36
37MODULE_AUTHOR("Yusuke Fujimaki <usk.fujimaki@gmail.com>");
38MODULE_AUTHOR("Brendan McGrath <redmcg@redmandi.dyndns.org>");
39MODULE_AUTHOR("Victor Vlasenko <victor.vlasenko@sysgears.com>");
40MODULE_AUTHOR("Frederik Wenigwieser <frederik.wenigwieser@gmail.com>");
41MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
42
43#define T100_TPAD_INTF 2
44#define MEDION_E1239T_TPAD_INTF 1
45
46#define E1239T_TP_TOGGLE_REPORT_ID 0x05
47#define T100CHI_MOUSE_REPORT_ID 0x06
48#define FEATURE_REPORT_ID 0x0d
49#define INPUT_REPORT_ID 0x5d
50#define FEATURE_KBD_REPORT_ID 0x5a
51#define FEATURE_KBD_REPORT_SIZE 16
52#define FEATURE_KBD_LED_REPORT_ID1 0x5d
53#define FEATURE_KBD_LED_REPORT_ID2 0x5e
54
55#define SUPPORT_KBD_BACKLIGHT BIT(0)
56
57#define MAX_TOUCH_MAJOR 8
58#define MAX_PRESSURE 128
59
60#define BTN_LEFT_MASK 0x01
61#define CONTACT_TOOL_TYPE_MASK 0x80
62#define CONTACT_X_MSB_MASK 0xf0
63#define CONTACT_Y_MSB_MASK 0x0f
64#define CONTACT_TOUCH_MAJOR_MASK 0x07
65#define CONTACT_PRESSURE_MASK 0x7f
66
67#define BATTERY_REPORT_ID (0x03)
68#define BATTERY_REPORT_SIZE (1 + 8)
69#define BATTERY_LEVEL_MAX ((u8)255)
70#define BATTERY_STAT_DISCONNECT (0)
71#define BATTERY_STAT_CHARGING (1)
72#define BATTERY_STAT_FULL (2)
73
74#define QUIRK_FIX_NOTEBOOK_REPORT BIT(0)
75#define QUIRK_NO_INIT_REPORTS BIT(1)
76#define QUIRK_SKIP_INPUT_MAPPING BIT(2)
77#define QUIRK_IS_MULTITOUCH BIT(3)
78#define QUIRK_NO_CONSUMER_USAGES BIT(4)
79#define QUIRK_USE_KBD_BACKLIGHT BIT(5)
80#define QUIRK_T100_KEYBOARD BIT(6)
81#define QUIRK_T100CHI BIT(7)
82#define QUIRK_G752_KEYBOARD BIT(8)
83#define QUIRK_T90CHI BIT(9)
84#define QUIRK_MEDION_E1239T BIT(10)
85#define QUIRK_ROG_NKEY_KEYBOARD BIT(11)
86#define QUIRK_ROG_CLAYMORE_II_KEYBOARD BIT(12)
87
88#define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \
89 QUIRK_NO_INIT_REPORTS | \
90 QUIRK_NO_CONSUMER_USAGES)
91#define I2C_TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \
92 QUIRK_SKIP_INPUT_MAPPING | \
93 QUIRK_IS_MULTITOUCH)
94
95#define TRKID_SGN ((TRKID_MAX + 1) >> 1)
96
97struct asus_kbd_leds {
98 struct led_classdev cdev;
99 struct hid_device *hdev;
100 struct work_struct work;
101 unsigned int brightness;
102 spinlock_t lock;
103 bool removed;
104};
105
106struct asus_touchpad_info {
107 int max_x;
108 int max_y;
109 int res_x;
110 int res_y;
111 int contact_size;
112 int max_contacts;
113 int report_size;
114};
115
116struct asus_drvdata {
117 unsigned long quirks;
118 struct hid_device *hdev;
119 struct input_dev *input;
120 struct input_dev *tp_kbd_input;
121 struct asus_kbd_leds *kbd_backlight;
122 const struct asus_touchpad_info *tp;
123 bool enable_backlight;
124 struct power_supply *battery;
125 struct power_supply_desc battery_desc;
126 int battery_capacity;
127 int battery_stat;
128 bool battery_in_query;
129 unsigned long battery_next_query;
130};
131
132static int asus_report_battery(struct asus_drvdata *, u8 *, int);
133
134static const struct asus_touchpad_info asus_i2c_tp = {
135 .max_x = 2794,
136 .max_y = 1758,
137 .contact_size = 5,
138 .max_contacts = 5,
139 .report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */,
140};
141
142static const struct asus_touchpad_info asus_t100ta_tp = {
143 .max_x = 2240,
144 .max_y = 1120,
145 .res_x = 30, /* units/mm */
146 .res_y = 27, /* units/mm */
147 .contact_size = 5,
148 .max_contacts = 5,
149 .report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */,
150};
151
152static const struct asus_touchpad_info asus_t100ha_tp = {
153 .max_x = 2640,
154 .max_y = 1320,
155 .res_x = 30, /* units/mm */
156 .res_y = 29, /* units/mm */
157 .contact_size = 5,
158 .max_contacts = 5,
159 .report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */,
160};
161
162static const struct asus_touchpad_info asus_t200ta_tp = {
163 .max_x = 3120,
164 .max_y = 1716,
165 .res_x = 30, /* units/mm */
166 .res_y = 28, /* units/mm */
167 .contact_size = 5,
168 .max_contacts = 5,
169 .report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */,
170};
171
172static const struct asus_touchpad_info asus_t100chi_tp = {
173 .max_x = 2640,
174 .max_y = 1320,
175 .res_x = 31, /* units/mm */
176 .res_y = 29, /* units/mm */
177 .contact_size = 3,
178 .max_contacts = 4,
179 .report_size = 15 /* 2 byte header + 3 * 4 + 1 byte footer */,
180};
181
182static const struct asus_touchpad_info medion_e1239t_tp = {
183 .max_x = 2640,
184 .max_y = 1380,
185 .res_x = 29, /* units/mm */
186 .res_y = 28, /* units/mm */
187 .contact_size = 5,
188 .max_contacts = 5,
189 .report_size = 32 /* 2 byte header + 5 * 5 + 5 byte footer */,
190};
191
192static void asus_report_contact_down(struct asus_drvdata *drvdat,
193 int toolType, u8 *data)
194{
195 struct input_dev *input = drvdat->input;
196 int touch_major, pressure, x, y;
197
198 x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1];
199 y = drvdat->tp->max_y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]);
200
201 input_report_abs(input, ABS_MT_POSITION_X, x);
202 input_report_abs(input, ABS_MT_POSITION_Y, y);
203
204 if (drvdat->tp->contact_size < 5)
205 return;
206
207 if (toolType == MT_TOOL_PALM) {
208 touch_major = MAX_TOUCH_MAJOR;
209 pressure = MAX_PRESSURE;
210 } else {
211 touch_major = (data[3] >> 4) & CONTACT_TOUCH_MAJOR_MASK;
212 pressure = data[4] & CONTACT_PRESSURE_MASK;
213 }
214
215 input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major);
216 input_report_abs(input, ABS_MT_PRESSURE, pressure);
217}
218
219/* Required for Synaptics Palm Detection */
220static void asus_report_tool_width(struct asus_drvdata *drvdat)
221{
222 struct input_mt *mt = drvdat->input->mt;
223 struct input_mt_slot *oldest;
224 int oldid, i;
225
226 if (drvdat->tp->contact_size < 5)
227 return;
228
229 oldest = NULL;
230 oldid = mt->trkid;
231
232 for (i = 0; i < mt->num_slots; ++i) {
233 struct input_mt_slot *ps = &mt->slots[i];
234 int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID);
235
236 if (id < 0)
237 continue;
238 if ((id - oldid) & TRKID_SGN) {
239 oldest = ps;
240 oldid = id;
241 }
242 }
243
244 if (oldest) {
245 input_report_abs(drvdat->input, ABS_TOOL_WIDTH,
246 input_mt_get_value(oldest, ABS_MT_TOUCH_MAJOR));
247 }
248}
249
250static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size)
251{
252 int i, toolType = MT_TOOL_FINGER;
253 u8 *contactData = data + 2;
254
255 if (size != drvdat->tp->report_size)
256 return 0;
257
258 for (i = 0; i < drvdat->tp->max_contacts; i++) {
259 bool down = !!(data[1] & BIT(i+3));
260
261 if (drvdat->tp->contact_size >= 5)
262 toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ?
263 MT_TOOL_PALM : MT_TOOL_FINGER;
264
265 input_mt_slot(drvdat->input, i);
266 input_mt_report_slot_state(drvdat->input, toolType, down);
267
268 if (down) {
269 asus_report_contact_down(drvdat, toolType, contactData);
270 contactData += drvdat->tp->contact_size;
271 }
272 }
273
274 input_report_key(drvdat->input, BTN_LEFT, data[1] & BTN_LEFT_MASK);
275 asus_report_tool_width(drvdat);
276
277 input_mt_sync_frame(drvdat->input);
278 input_sync(drvdat->input);
279
280 return 1;
281}
282
283static int asus_e1239t_event(struct asus_drvdata *drvdat, u8 *data, int size)
284{
285 if (size != 3)
286 return 0;
287
288 /* Handle broken mute key which only sends press events */
289 if (!drvdat->tp &&
290 data[0] == 0x02 && data[1] == 0xe2 && data[2] == 0x00) {
291 input_report_key(drvdat->input, KEY_MUTE, 1);
292 input_sync(drvdat->input);
293 input_report_key(drvdat->input, KEY_MUTE, 0);
294 input_sync(drvdat->input);
295 return 1;
296 }
297
298 /* Handle custom touchpad toggle key which only sends press events */
299 if (drvdat->tp_kbd_input &&
300 data[0] == 0x05 && data[1] == 0x02 && data[2] == 0x28) {
301 input_report_key(drvdat->tp_kbd_input, KEY_F21, 1);
302 input_sync(drvdat->tp_kbd_input);
303 input_report_key(drvdat->tp_kbd_input, KEY_F21, 0);
304 input_sync(drvdat->tp_kbd_input);
305 return 1;
306 }
307
308 return 0;
309}
310
311static int asus_event(struct hid_device *hdev, struct hid_field *field,
312 struct hid_usage *usage, __s32 value)
313{
314 if ((usage->hid & HID_USAGE_PAGE) == 0xff310000 &&
315 (usage->hid & HID_USAGE) != 0x00 &&
316 (usage->hid & HID_USAGE) != 0xff && !usage->type) {
317 hid_warn(hdev, "Unmapped Asus vendor usagepage code 0x%02x\n",
318 usage->hid & HID_USAGE);
319 }
320
321 return 0;
322}
323
324static int asus_raw_event(struct hid_device *hdev,
325 struct hid_report *report, u8 *data, int size)
326{
327 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
328
329 if (drvdata->battery && data[0] == BATTERY_REPORT_ID)
330 return asus_report_battery(drvdata, data, size);
331
332 if (drvdata->tp && data[0] == INPUT_REPORT_ID)
333 return asus_report_input(drvdata, data, size);
334
335 if (drvdata->quirks & QUIRK_MEDION_E1239T)
336 return asus_e1239t_event(drvdata, data, size);
337
338 /*
339 * Skip these report ID, the device emits a continuous stream associated
340 * with the AURA mode it is in which looks like an 'echo'.
341 */
342 if (report->id == FEATURE_KBD_LED_REPORT_ID1 || report->id == FEATURE_KBD_LED_REPORT_ID2)
343 return -1;
344 if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD) {
345 /*
346 * G713 and G733 send these codes on some keypresses, depending on
347 * the key pressed it can trigger a shutdown event if not caught.
348 */
349 if (data[0] == 0x02 && data[1] == 0x30) {
350 return -1;
351 }
352 }
353
354 if (drvdata->quirks & QUIRK_ROG_CLAYMORE_II_KEYBOARD) {
355 /*
356 * CLAYMORE II keyboard sends this packet when it goes to sleep
357 * this causes the whole system to go into suspend.
358 */
359
360 if(size == 2 && data[0] == 0x02 && data[1] == 0x00) {
361 return -1;
362 }
363 }
364
365 return 0;
366}
367
368static int asus_kbd_set_report(struct hid_device *hdev, const u8 *buf, size_t buf_size)
369{
370 unsigned char *dmabuf;
371 int ret;
372
373 dmabuf = kmemdup(buf, buf_size, GFP_KERNEL);
374 if (!dmabuf)
375 return -ENOMEM;
376
377 /*
378 * The report ID should be set from the incoming buffer due to LED and key
379 * interfaces having different pages
380 */
381 ret = hid_hw_raw_request(hdev, buf[0], dmabuf,
382 buf_size, HID_FEATURE_REPORT,
383 HID_REQ_SET_REPORT);
384 kfree(dmabuf);
385
386 return ret;
387}
388
389static int asus_kbd_init(struct hid_device *hdev, u8 report_id)
390{
391 const u8 buf[] = { report_id, 0x41, 0x53, 0x55, 0x53, 0x20, 0x54,
392 0x65, 0x63, 0x68, 0x2e, 0x49, 0x6e, 0x63, 0x2e, 0x00 };
393 int ret;
394
395 ret = asus_kbd_set_report(hdev, buf, sizeof(buf));
396 if (ret < 0)
397 hid_err(hdev, "Asus failed to send init command: %d\n", ret);
398
399 return ret;
400}
401
402static int asus_kbd_get_functions(struct hid_device *hdev,
403 unsigned char *kbd_func,
404 u8 report_id)
405{
406 const u8 buf[] = { report_id, 0x05, 0x20, 0x31, 0x00, 0x08 };
407 u8 *readbuf;
408 int ret;
409
410 ret = asus_kbd_set_report(hdev, buf, sizeof(buf));
411 if (ret < 0) {
412 hid_err(hdev, "Asus failed to send configuration command: %d\n", ret);
413 return ret;
414 }
415
416 readbuf = kzalloc(FEATURE_KBD_REPORT_SIZE, GFP_KERNEL);
417 if (!readbuf)
418 return -ENOMEM;
419
420 ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, readbuf,
421 FEATURE_KBD_REPORT_SIZE, HID_FEATURE_REPORT,
422 HID_REQ_GET_REPORT);
423 if (ret < 0) {
424 hid_err(hdev, "Asus failed to request functions: %d\n", ret);
425 kfree(readbuf);
426 return ret;
427 }
428
429 *kbd_func = readbuf[6];
430
431 kfree(readbuf);
432 return ret;
433}
434
435static int asus_kbd_disable_oobe(struct hid_device *hdev)
436{
437 const u8 init[][6] = {
438 { FEATURE_KBD_REPORT_ID, 0x05, 0x20, 0x31, 0x00, 0x08 },
439 { FEATURE_KBD_REPORT_ID, 0xBA, 0xC5, 0xC4 },
440 { FEATURE_KBD_REPORT_ID, 0xD0, 0x8F, 0x01 },
441 { FEATURE_KBD_REPORT_ID, 0xD0, 0x85, 0xFF }
442 };
443 int ret;
444
445 for (size_t i = 0; i < ARRAY_SIZE(init); i++) {
446 ret = asus_kbd_set_report(hdev, init[i], sizeof(init[i]));
447 if (ret < 0)
448 return ret;
449 }
450
451 hid_info(hdev, "Disabled OOBE for keyboard\n");
452 return 0;
453}
454
455static void asus_schedule_work(struct asus_kbd_leds *led)
456{
457 unsigned long flags;
458
459 spin_lock_irqsave(&led->lock, flags);
460 if (!led->removed)
461 schedule_work(&led->work);
462 spin_unlock_irqrestore(&led->lock, flags);
463}
464
465static void asus_kbd_backlight_set(struct led_classdev *led_cdev,
466 enum led_brightness brightness)
467{
468 struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
469 cdev);
470 unsigned long flags;
471
472 spin_lock_irqsave(&led->lock, flags);
473 led->brightness = brightness;
474 spin_unlock_irqrestore(&led->lock, flags);
475
476 asus_schedule_work(led);
477}
478
479static enum led_brightness asus_kbd_backlight_get(struct led_classdev *led_cdev)
480{
481 struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
482 cdev);
483 enum led_brightness brightness;
484 unsigned long flags;
485
486 spin_lock_irqsave(&led->lock, flags);
487 brightness = led->brightness;
488 spin_unlock_irqrestore(&led->lock, flags);
489
490 return brightness;
491}
492
493static void asus_kbd_backlight_work(struct work_struct *work)
494{
495 struct asus_kbd_leds *led = container_of(work, struct asus_kbd_leds, work);
496 u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4, 0x00 };
497 int ret;
498 unsigned long flags;
499
500 spin_lock_irqsave(&led->lock, flags);
501 buf[4] = led->brightness;
502 spin_unlock_irqrestore(&led->lock, flags);
503
504 ret = asus_kbd_set_report(led->hdev, buf, sizeof(buf));
505 if (ret < 0)
506 hid_err(led->hdev, "Asus failed to set keyboard backlight: %d\n", ret);
507}
508
509/* WMI-based keyboard backlight LED control (via asus-wmi driver) takes
510 * precedence. We only activate HID-based backlight control when the
511 * WMI control is not available.
512 */
513static bool asus_kbd_wmi_led_control_present(struct hid_device *hdev)
514{
515 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
516 u32 value;
517 int ret;
518
519 if (!IS_ENABLED(CONFIG_ASUS_WMI))
520 return false;
521
522 if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD &&
523 dmi_check_system(asus_use_hid_led_dmi_ids)) {
524 hid_info(hdev, "using HID for asus::kbd_backlight\n");
525 return false;
526 }
527
528 ret = asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS,
529 ASUS_WMI_DEVID_KBD_BACKLIGHT, 0, &value);
530 hid_dbg(hdev, "WMI backlight check: rc %d value %x", ret, value);
531 if (ret)
532 return false;
533
534 return !!(value & ASUS_WMI_DSTS_PRESENCE_BIT);
535}
536
537static int asus_kbd_register_leds(struct hid_device *hdev)
538{
539 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
540 unsigned char kbd_func;
541 int ret;
542
543 if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD) {
544 /* Initialize keyboard */
545 ret = asus_kbd_init(hdev, FEATURE_KBD_REPORT_ID);
546 if (ret < 0)
547 return ret;
548
549 /* The LED endpoint is initialised in two HID */
550 ret = asus_kbd_init(hdev, FEATURE_KBD_LED_REPORT_ID1);
551 if (ret < 0)
552 return ret;
553
554 ret = asus_kbd_init(hdev, FEATURE_KBD_LED_REPORT_ID2);
555 if (ret < 0)
556 return ret;
557
558 if (dmi_match(DMI_PRODUCT_FAMILY, "ProArt P16")) {
559 ret = asus_kbd_disable_oobe(hdev);
560 if (ret < 0)
561 return ret;
562 }
563 } else {
564 /* Initialize keyboard */
565 ret = asus_kbd_init(hdev, FEATURE_KBD_REPORT_ID);
566 if (ret < 0)
567 return ret;
568
569 /* Get keyboard functions */
570 ret = asus_kbd_get_functions(hdev, &kbd_func, FEATURE_KBD_REPORT_ID);
571 if (ret < 0)
572 return ret;
573
574 /* Check for backlight support */
575 if (!(kbd_func & SUPPORT_KBD_BACKLIGHT))
576 return -ENODEV;
577 }
578
579 drvdata->kbd_backlight = devm_kzalloc(&hdev->dev,
580 sizeof(struct asus_kbd_leds),
581 GFP_KERNEL);
582 if (!drvdata->kbd_backlight)
583 return -ENOMEM;
584
585 drvdata->kbd_backlight->removed = false;
586 drvdata->kbd_backlight->brightness = 0;
587 drvdata->kbd_backlight->hdev = hdev;
588 drvdata->kbd_backlight->cdev.name = "asus::kbd_backlight";
589 drvdata->kbd_backlight->cdev.max_brightness = 3;
590 drvdata->kbd_backlight->cdev.brightness_set = asus_kbd_backlight_set;
591 drvdata->kbd_backlight->cdev.brightness_get = asus_kbd_backlight_get;
592 INIT_WORK(&drvdata->kbd_backlight->work, asus_kbd_backlight_work);
593 spin_lock_init(&drvdata->kbd_backlight->lock);
594
595 ret = devm_led_classdev_register(&hdev->dev, &drvdata->kbd_backlight->cdev);
596 if (ret < 0) {
597 /* No need to have this still around */
598 devm_kfree(&hdev->dev, drvdata->kbd_backlight);
599 }
600
601 return ret;
602}
603
604/*
605 * [0] REPORT_ID (same value defined in report descriptor)
606 * [1] rest battery level. range [0..255]
607 * [2]..[7] Bluetooth hardware address (MAC address)
608 * [8] charging status
609 * = 0 : AC offline / discharging
610 * = 1 : AC online / charging
611 * = 2 : AC online / fully charged
612 */
613static int asus_parse_battery(struct asus_drvdata *drvdata, u8 *data, int size)
614{
615 u8 sts;
616 u8 lvl;
617 int val;
618
619 lvl = data[1];
620 sts = data[8];
621
622 drvdata->battery_capacity = ((int)lvl * 100) / (int)BATTERY_LEVEL_MAX;
623
624 switch (sts) {
625 case BATTERY_STAT_CHARGING:
626 val = POWER_SUPPLY_STATUS_CHARGING;
627 break;
628 case BATTERY_STAT_FULL:
629 val = POWER_SUPPLY_STATUS_FULL;
630 break;
631 case BATTERY_STAT_DISCONNECT:
632 default:
633 val = POWER_SUPPLY_STATUS_DISCHARGING;
634 break;
635 }
636 drvdata->battery_stat = val;
637
638 return 0;
639}
640
641static int asus_report_battery(struct asus_drvdata *drvdata, u8 *data, int size)
642{
643 /* notify only the autonomous event by device */
644 if ((drvdata->battery_in_query == false) &&
645 (size == BATTERY_REPORT_SIZE))
646 power_supply_changed(drvdata->battery);
647
648 return 0;
649}
650
651static int asus_battery_query(struct asus_drvdata *drvdata)
652{
653 u8 *buf;
654 int ret = 0;
655
656 buf = kmalloc(BATTERY_REPORT_SIZE, GFP_KERNEL);
657 if (!buf)
658 return -ENOMEM;
659
660 drvdata->battery_in_query = true;
661 ret = hid_hw_raw_request(drvdata->hdev, BATTERY_REPORT_ID,
662 buf, BATTERY_REPORT_SIZE,
663 HID_INPUT_REPORT, HID_REQ_GET_REPORT);
664 drvdata->battery_in_query = false;
665 if (ret == BATTERY_REPORT_SIZE)
666 ret = asus_parse_battery(drvdata, buf, BATTERY_REPORT_SIZE);
667 else
668 ret = -ENODATA;
669
670 kfree(buf);
671
672 return ret;
673}
674
675static enum power_supply_property asus_battery_props[] = {
676 POWER_SUPPLY_PROP_STATUS,
677 POWER_SUPPLY_PROP_PRESENT,
678 POWER_SUPPLY_PROP_CAPACITY,
679 POWER_SUPPLY_PROP_SCOPE,
680 POWER_SUPPLY_PROP_MODEL_NAME,
681};
682
683#define QUERY_MIN_INTERVAL (60 * HZ) /* 60[sec] */
684
685static int asus_battery_get_property(struct power_supply *psy,
686 enum power_supply_property psp,
687 union power_supply_propval *val)
688{
689 struct asus_drvdata *drvdata = power_supply_get_drvdata(psy);
690 int ret = 0;
691
692 switch (psp) {
693 case POWER_SUPPLY_PROP_STATUS:
694 case POWER_SUPPLY_PROP_CAPACITY:
695 if (time_before(drvdata->battery_next_query, jiffies)) {
696 drvdata->battery_next_query =
697 jiffies + QUERY_MIN_INTERVAL;
698 ret = asus_battery_query(drvdata);
699 if (ret)
700 return ret;
701 }
702 if (psp == POWER_SUPPLY_PROP_STATUS)
703 val->intval = drvdata->battery_stat;
704 else
705 val->intval = drvdata->battery_capacity;
706 break;
707 case POWER_SUPPLY_PROP_PRESENT:
708 val->intval = 1;
709 break;
710 case POWER_SUPPLY_PROP_SCOPE:
711 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
712 break;
713 case POWER_SUPPLY_PROP_MODEL_NAME:
714 val->strval = drvdata->hdev->name;
715 break;
716 default:
717 ret = -EINVAL;
718 break;
719 }
720
721 return ret;
722}
723
724static int asus_battery_probe(struct hid_device *hdev)
725{
726 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
727 struct power_supply_config pscfg = { .drv_data = drvdata };
728 int ret = 0;
729
730 drvdata->battery_capacity = 0;
731 drvdata->battery_stat = POWER_SUPPLY_STATUS_UNKNOWN;
732 drvdata->battery_in_query = false;
733
734 drvdata->battery_desc.properties = asus_battery_props;
735 drvdata->battery_desc.num_properties = ARRAY_SIZE(asus_battery_props);
736 drvdata->battery_desc.get_property = asus_battery_get_property;
737 drvdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
738 drvdata->battery_desc.use_for_apm = 0;
739 drvdata->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
740 "asus-keyboard-%s-battery",
741 strlen(hdev->uniq) ?
742 hdev->uniq : dev_name(&hdev->dev));
743 if (!drvdata->battery_desc.name)
744 return -ENOMEM;
745
746 drvdata->battery_next_query = jiffies;
747
748 drvdata->battery = devm_power_supply_register(&hdev->dev,
749 &(drvdata->battery_desc), &pscfg);
750 if (IS_ERR(drvdata->battery)) {
751 ret = PTR_ERR(drvdata->battery);
752 drvdata->battery = NULL;
753 hid_err(hdev, "Unable to register battery device\n");
754 return ret;
755 }
756
757 power_supply_powers(drvdata->battery, &hdev->dev);
758
759 return ret;
760}
761
762static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi)
763{
764 struct input_dev *input = hi->input;
765 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
766
767 /* T100CHI uses MULTI_INPUT, bind the touchpad to the mouse hid_input */
768 if (drvdata->quirks & QUIRK_T100CHI &&
769 hi->report->id != T100CHI_MOUSE_REPORT_ID)
770 return 0;
771
772 /* Handle MULTI_INPUT on E1239T mouse/touchpad USB interface */
773 if (drvdata->tp && (drvdata->quirks & QUIRK_MEDION_E1239T)) {
774 switch (hi->report->id) {
775 case E1239T_TP_TOGGLE_REPORT_ID:
776 input_set_capability(input, EV_KEY, KEY_F21);
777 input->name = "Asus Touchpad Keys";
778 drvdata->tp_kbd_input = input;
779 return 0;
780 case INPUT_REPORT_ID:
781 break; /* Touchpad report, handled below */
782 default:
783 return 0; /* Ignore other reports */
784 }
785 }
786
787 if (drvdata->tp) {
788 int ret;
789
790 input_set_abs_params(input, ABS_MT_POSITION_X, 0,
791 drvdata->tp->max_x, 0, 0);
792 input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
793 drvdata->tp->max_y, 0, 0);
794 input_abs_set_res(input, ABS_MT_POSITION_X, drvdata->tp->res_x);
795 input_abs_set_res(input, ABS_MT_POSITION_Y, drvdata->tp->res_y);
796
797 if (drvdata->tp->contact_size >= 5) {
798 input_set_abs_params(input, ABS_TOOL_WIDTH, 0,
799 MAX_TOUCH_MAJOR, 0, 0);
800 input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0,
801 MAX_TOUCH_MAJOR, 0, 0);
802 input_set_abs_params(input, ABS_MT_PRESSURE, 0,
803 MAX_PRESSURE, 0, 0);
804 }
805
806 __set_bit(BTN_LEFT, input->keybit);
807 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
808
809 ret = input_mt_init_slots(input, drvdata->tp->max_contacts,
810 INPUT_MT_POINTER);
811
812 if (ret) {
813 hid_err(hdev, "Asus input mt init slots failed: %d\n", ret);
814 return ret;
815 }
816 }
817
818 drvdata->input = input;
819
820 if (drvdata->enable_backlight &&
821 !asus_kbd_wmi_led_control_present(hdev) &&
822 asus_kbd_register_leds(hdev))
823 hid_warn(hdev, "Failed to initialize backlight.\n");
824
825 return 0;
826}
827
828#define asus_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \
829 max, EV_KEY, (c))
830static int asus_input_mapping(struct hid_device *hdev,
831 struct hid_input *hi, struct hid_field *field,
832 struct hid_usage *usage, unsigned long **bit,
833 int *max)
834{
835 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
836
837 if (drvdata->quirks & QUIRK_SKIP_INPUT_MAPPING) {
838 /* Don't map anything from the HID report.
839 * We do it all manually in asus_input_configured
840 */
841 return -1;
842 }
843
844 /*
845 * Ignore a bunch of bogus collections in the T100CHI descriptor.
846 * This avoids a bunch of non-functional hid_input devices getting
847 * created because of the T100CHI using HID_QUIRK_MULTI_INPUT.
848 */
849 if ((drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) &&
850 (field->application == (HID_UP_GENDESK | 0x0080) ||
851 field->application == HID_GD_MOUSE ||
852 usage->hid == (HID_UP_GENDEVCTRLS | 0x0024) ||
853 usage->hid == (HID_UP_GENDEVCTRLS | 0x0025) ||
854 usage->hid == (HID_UP_GENDEVCTRLS | 0x0026)))
855 return -1;
856
857 /* ASUS-specific keyboard hotkeys and led backlight */
858 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_ASUSVENDOR) {
859 switch (usage->hid & HID_USAGE) {
860 case 0x10: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break;
861 case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP); break;
862 case 0x35: asus_map_key_clear(KEY_DISPLAY_OFF); break;
863 case 0x6c: asus_map_key_clear(KEY_SLEEP); break;
864 case 0x7c: asus_map_key_clear(KEY_MICMUTE); break;
865 case 0x82: asus_map_key_clear(KEY_CAMERA); break;
866 case 0x88: asus_map_key_clear(KEY_RFKILL); break;
867 case 0xb5: asus_map_key_clear(KEY_CALC); break;
868 case 0xc4: asus_map_key_clear(KEY_KBDILLUMUP); break;
869 case 0xc5: asus_map_key_clear(KEY_KBDILLUMDOWN); break;
870 case 0xc7: asus_map_key_clear(KEY_KBDILLUMTOGGLE); break;
871
872 case 0x6b: asus_map_key_clear(KEY_F21); break; /* ASUS touchpad toggle */
873 case 0x38: asus_map_key_clear(KEY_PROG1); break; /* ROG key */
874 case 0xba: asus_map_key_clear(KEY_PROG2); break; /* Fn+C ASUS Splendid */
875 case 0x5c: asus_map_key_clear(KEY_PROG3); break; /* Fn+Space Power4Gear */
876 case 0x99: asus_map_key_clear(KEY_PROG4); break; /* Fn+F5 "fan" symbol */
877 case 0xae: asus_map_key_clear(KEY_PROG4); break; /* Fn+F5 "fan" symbol */
878 case 0x92: asus_map_key_clear(KEY_CALC); break; /* Fn+Ret "Calc" symbol */
879 case 0xb2: asus_map_key_clear(KEY_PROG2); break; /* Fn+Left previous aura */
880 case 0xb3: asus_map_key_clear(KEY_PROG3); break; /* Fn+Left next aura */
881 case 0x6a: asus_map_key_clear(KEY_F13); break; /* Screenpad toggle */
882 case 0x4b: asus_map_key_clear(KEY_F14); break; /* Arrows/Pg-Up/Dn toggle */
883 case 0xa5: asus_map_key_clear(KEY_F15); break; /* ROG Ally left back */
884 case 0xa6: asus_map_key_clear(KEY_F16); break; /* ROG Ally QAM button */
885 case 0xa7: asus_map_key_clear(KEY_F17); break; /* ROG Ally ROG long-press */
886 case 0xa8: asus_map_key_clear(KEY_F18); break; /* ROG Ally ROG long-press-release */
887
888 default:
889 /* ASUS lazily declares 256 usages, ignore the rest,
890 * as some make the keyboard appear as a pointer device. */
891 return -1;
892 }
893
894 /*
895 * Check and enable backlight only on devices with UsagePage ==
896 * 0xff31 to avoid initializing the keyboard firmware multiple
897 * times on devices with multiple HID descriptors but same
898 * PID/VID.
899 */
900 if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT)
901 drvdata->enable_backlight = true;
902
903 set_bit(EV_REP, hi->input->evbit);
904 return 1;
905 }
906
907 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) {
908 switch (usage->hid & HID_USAGE) {
909 case 0xff01: asus_map_key_clear(BTN_1); break;
910 case 0xff02: asus_map_key_clear(BTN_2); break;
911 case 0xff03: asus_map_key_clear(BTN_3); break;
912 case 0xff04: asus_map_key_clear(BTN_4); break;
913 case 0xff05: asus_map_key_clear(BTN_5); break;
914 case 0xff06: asus_map_key_clear(BTN_6); break;
915 case 0xff07: asus_map_key_clear(BTN_7); break;
916 case 0xff08: asus_map_key_clear(BTN_8); break;
917 case 0xff09: asus_map_key_clear(BTN_9); break;
918 case 0xff0a: asus_map_key_clear(BTN_A); break;
919 case 0xff0b: asus_map_key_clear(BTN_B); break;
920 case 0x00f1: asus_map_key_clear(KEY_WLAN); break;
921 case 0x00f2: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break;
922 case 0x00f3: asus_map_key_clear(KEY_BRIGHTNESSUP); break;
923 case 0x00f4: asus_map_key_clear(KEY_DISPLAY_OFF); break;
924 case 0x00f7: asus_map_key_clear(KEY_CAMERA); break;
925 case 0x00f8: asus_map_key_clear(KEY_PROG1); break;
926 default:
927 return 0;
928 }
929
930 set_bit(EV_REP, hi->input->evbit);
931 return 1;
932 }
933
934 if (drvdata->quirks & QUIRK_NO_CONSUMER_USAGES &&
935 (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
936 switch (usage->hid & HID_USAGE) {
937 case 0xe2: /* Mute */
938 case 0xe9: /* Volume up */
939 case 0xea: /* Volume down */
940 return 0;
941 default:
942 /* Ignore dummy Consumer usages which make the
943 * keyboard incorrectly appear as a pointer device.
944 */
945 return -1;
946 }
947 }
948
949 /*
950 * The mute button is broken and only sends press events, we
951 * deal with this in our raw_event handler, so do not map it.
952 */
953 if ((drvdata->quirks & QUIRK_MEDION_E1239T) &&
954 usage->hid == (HID_UP_CONSUMER | 0xe2)) {
955 input_set_capability(hi->input, EV_KEY, KEY_MUTE);
956 return -1;
957 }
958
959 return 0;
960}
961
962static int asus_start_multitouch(struct hid_device *hdev)
963{
964 int ret;
965 static const unsigned char buf[] = {
966 FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00
967 };
968 unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL);
969
970 if (!dmabuf) {
971 ret = -ENOMEM;
972 hid_err(hdev, "Asus failed to alloc dma buf: %d\n", ret);
973 return ret;
974 }
975
976 ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, sizeof(buf),
977 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
978
979 kfree(dmabuf);
980
981 if (ret != sizeof(buf)) {
982 hid_err(hdev, "Asus failed to start multitouch: %d\n", ret);
983 return ret;
984 }
985
986 return 0;
987}
988
989static int __maybe_unused asus_resume(struct hid_device *hdev) {
990 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
991 int ret = 0;
992
993 if (drvdata->kbd_backlight) {
994 const u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4,
995 drvdata->kbd_backlight->cdev.brightness };
996 ret = asus_kbd_set_report(hdev, buf, sizeof(buf));
997 if (ret < 0) {
998 hid_err(hdev, "Asus failed to set keyboard backlight: %d\n", ret);
999 goto asus_resume_err;
1000 }
1001 }
1002
1003asus_resume_err:
1004 return ret;
1005}
1006
1007static int __maybe_unused asus_reset_resume(struct hid_device *hdev)
1008{
1009 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
1010
1011 if (drvdata->tp)
1012 return asus_start_multitouch(hdev);
1013
1014 return 0;
1015}
1016
1017static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
1018{
1019 int ret;
1020 struct asus_drvdata *drvdata;
1021
1022 drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
1023 if (drvdata == NULL) {
1024 hid_err(hdev, "Can't alloc Asus descriptor\n");
1025 return -ENOMEM;
1026 }
1027
1028 hid_set_drvdata(hdev, drvdata);
1029
1030 drvdata->quirks = id->driver_data;
1031
1032 /*
1033 * T90CHI's keyboard dock returns same ID values as T100CHI's dock.
1034 * Thus, identify T90CHI dock with product name string.
1035 */
1036 if (strstr(hdev->name, "T90CHI")) {
1037 drvdata->quirks &= ~QUIRK_T100CHI;
1038 drvdata->quirks |= QUIRK_T90CHI;
1039 }
1040
1041 if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
1042 drvdata->tp = &asus_i2c_tp;
1043
1044 if ((drvdata->quirks & QUIRK_T100_KEYBOARD) && hid_is_usb(hdev)) {
1045 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
1046
1047 if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) {
1048 drvdata->quirks = QUIRK_SKIP_INPUT_MAPPING;
1049 /*
1050 * The T100HA uses the same USB-ids as the T100TAF and
1051 * the T200TA uses the same USB-ids as the T100TA, while
1052 * both have different max x/y values as the T100TA[F].
1053 */
1054 if (dmi_match(DMI_PRODUCT_NAME, "T100HAN"))
1055 drvdata->tp = &asus_t100ha_tp;
1056 else if (dmi_match(DMI_PRODUCT_NAME, "T200TA"))
1057 drvdata->tp = &asus_t200ta_tp;
1058 else
1059 drvdata->tp = &asus_t100ta_tp;
1060 }
1061 }
1062
1063 if (drvdata->quirks & QUIRK_T100CHI) {
1064 /*
1065 * All functionality is on a single HID interface and for
1066 * userspace the touchpad must be a separate input_dev.
1067 */
1068 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
1069 drvdata->tp = &asus_t100chi_tp;
1070 }
1071
1072 if ((drvdata->quirks & QUIRK_MEDION_E1239T) && hid_is_usb(hdev)) {
1073 struct usb_host_interface *alt =
1074 to_usb_interface(hdev->dev.parent)->altsetting;
1075
1076 if (alt->desc.bInterfaceNumber == MEDION_E1239T_TPAD_INTF) {
1077 /* For separate input-devs for tp and tp toggle key */
1078 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
1079 drvdata->quirks |= QUIRK_SKIP_INPUT_MAPPING;
1080 drvdata->tp = &medion_e1239t_tp;
1081 }
1082 }
1083
1084 if (drvdata->quirks & QUIRK_NO_INIT_REPORTS)
1085 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
1086
1087 drvdata->hdev = hdev;
1088
1089 if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
1090 ret = asus_battery_probe(hdev);
1091 if (ret) {
1092 hid_err(hdev,
1093 "Asus hid battery_probe failed: %d\n", ret);
1094 return ret;
1095 }
1096 }
1097
1098 ret = hid_parse(hdev);
1099 if (ret) {
1100 hid_err(hdev, "Asus hid parse failed: %d\n", ret);
1101 return ret;
1102 }
1103
1104 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1105 if (ret) {
1106 hid_err(hdev, "Asus hw start failed: %d\n", ret);
1107 return ret;
1108 }
1109
1110 if (!drvdata->input) {
1111 hid_err(hdev, "Asus input not registered\n");
1112 ret = -ENOMEM;
1113 goto err_stop_hw;
1114 }
1115
1116 if (drvdata->tp) {
1117 drvdata->input->name = "Asus TouchPad";
1118 } else {
1119 drvdata->input->name = "Asus Keyboard";
1120 }
1121
1122 if (drvdata->tp) {
1123 ret = asus_start_multitouch(hdev);
1124 if (ret)
1125 goto err_stop_hw;
1126 }
1127
1128 return 0;
1129err_stop_hw:
1130 hid_hw_stop(hdev);
1131 return ret;
1132}
1133
1134static void asus_remove(struct hid_device *hdev)
1135{
1136 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
1137 unsigned long flags;
1138
1139 if (drvdata->kbd_backlight) {
1140 spin_lock_irqsave(&drvdata->kbd_backlight->lock, flags);
1141 drvdata->kbd_backlight->removed = true;
1142 spin_unlock_irqrestore(&drvdata->kbd_backlight->lock, flags);
1143
1144 cancel_work_sync(&drvdata->kbd_backlight->work);
1145 }
1146
1147 hid_hw_stop(hdev);
1148}
1149
1150static const __u8 asus_g752_fixed_rdesc[] = {
1151 0x19, 0x00, /* Usage Minimum (0x00) */
1152 0x2A, 0xFF, 0x00, /* Usage Maximum (0xFF) */
1153};
1154
1155static const __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
1156 unsigned int *rsize)
1157{
1158 struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
1159
1160 if (drvdata->quirks & QUIRK_FIX_NOTEBOOK_REPORT &&
1161 *rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x65) {
1162 hid_info(hdev, "Fixing up Asus notebook report descriptor\n");
1163 rdesc[55] = 0xdd;
1164 }
1165 /* For the T100TA/T200TA keyboard dock */
1166 if (drvdata->quirks & QUIRK_T100_KEYBOARD &&
1167 (*rsize == 76 || *rsize == 101) &&
1168 rdesc[73] == 0x81 && rdesc[74] == 0x01) {
1169 hid_info(hdev, "Fixing up Asus T100 keyb report descriptor\n");
1170 rdesc[74] &= ~HID_MAIN_ITEM_CONSTANT;
1171 }
1172 /* For the T100CHI/T90CHI keyboard dock */
1173 if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
1174 int rsize_orig;
1175 int offs;
1176
1177 if (drvdata->quirks & QUIRK_T100CHI) {
1178 rsize_orig = 403;
1179 offs = 388;
1180 } else {
1181 rsize_orig = 306;
1182 offs = 291;
1183 }
1184
1185 /*
1186 * Change Usage (76h) to Usage Minimum (00h), Usage Maximum
1187 * (FFh) and clear the flags in the Input() byte.
1188 * Note the descriptor has a bogus 0 byte at the end so we
1189 * only need 1 extra byte.
1190 */
1191 if (*rsize == rsize_orig &&
1192 rdesc[offs] == 0x09 && rdesc[offs + 1] == 0x76) {
1193 *rsize = rsize_orig + 1;
1194 rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL);
1195 if (!rdesc)
1196 return NULL;
1197
1198 hid_info(hdev, "Fixing up %s keyb report descriptor\n",
1199 drvdata->quirks & QUIRK_T100CHI ?
1200 "T100CHI" : "T90CHI");
1201 memmove(rdesc + offs + 4, rdesc + offs + 2, 12);
1202 rdesc[offs] = 0x19;
1203 rdesc[offs + 1] = 0x00;
1204 rdesc[offs + 2] = 0x29;
1205 rdesc[offs + 3] = 0xff;
1206 rdesc[offs + 14] = 0x00;
1207 }
1208 }
1209
1210 if (drvdata->quirks & QUIRK_G752_KEYBOARD &&
1211 *rsize == 75 && rdesc[61] == 0x15 && rdesc[62] == 0x00) {
1212 /* report is missing usage minimum and maximum */
1213 __u8 *new_rdesc;
1214 size_t new_size = *rsize + sizeof(asus_g752_fixed_rdesc);
1215
1216 new_rdesc = devm_kzalloc(&hdev->dev, new_size, GFP_KERNEL);
1217 if (new_rdesc == NULL)
1218 return rdesc;
1219
1220 hid_info(hdev, "Fixing up Asus G752 keyb report descriptor\n");
1221 /* copy the valid part */
1222 memcpy(new_rdesc, rdesc, 61);
1223 /* insert missing part */
1224 memcpy(new_rdesc + 61, asus_g752_fixed_rdesc, sizeof(asus_g752_fixed_rdesc));
1225 /* copy remaining data */
1226 memcpy(new_rdesc + 61 + sizeof(asus_g752_fixed_rdesc), rdesc + 61, *rsize - 61);
1227
1228 *rsize = new_size;
1229 rdesc = new_rdesc;
1230 }
1231
1232 if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD &&
1233 *rsize == 331 && rdesc[190] == 0x85 && rdesc[191] == 0x5a &&
1234 rdesc[204] == 0x95 && rdesc[205] == 0x05) {
1235 hid_info(hdev, "Fixing up Asus N-KEY keyb report descriptor\n");
1236 rdesc[205] = 0x01;
1237 }
1238
1239 /* match many more n-key devices */
1240 if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD && *rsize > 15) {
1241 for (int i = 0; i < *rsize - 15; i++) {
1242 /* offset to the count from 0x5a report part always 14 */
1243 if (rdesc[i] == 0x85 && rdesc[i + 1] == 0x5a &&
1244 rdesc[i + 14] == 0x95 && rdesc[i + 15] == 0x05) {
1245 hid_info(hdev, "Fixing up Asus N-Key report descriptor\n");
1246 rdesc[i + 15] = 0x01;
1247 break;
1248 }
1249 }
1250 }
1251
1252 return rdesc;
1253}
1254
1255static const struct hid_device_id asus_devices[] = {
1256 { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
1257 USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD), I2C_KEYBOARD_QUIRKS},
1258 { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
1259 USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), I2C_TOUCHPAD_QUIRKS },
1260 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1261 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1), QUIRK_USE_KBD_BACKLIGHT },
1262 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1263 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT },
1264 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1265 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3), QUIRK_G752_KEYBOARD },
1266 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1267 USB_DEVICE_ID_ASUSTEK_FX503VD_KEYBOARD),
1268 QUIRK_USE_KBD_BACKLIGHT },
1269 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1270 USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD),
1271 QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
1272 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1273 USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD2),
1274 QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
1275 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1276 USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD3),
1277 QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
1278 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1279 USB_DEVICE_ID_ASUSTEK_ROG_Z13_LIGHTBAR),
1280 QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
1281 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1282 USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY),
1283 QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
1284 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1285 USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY_X),
1286 QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
1287 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1288 USB_DEVICE_ID_ASUSTEK_ROG_CLAYMORE_II_KEYBOARD),
1289 QUIRK_ROG_CLAYMORE_II_KEYBOARD },
1290 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1291 USB_DEVICE_ID_ASUSTEK_T100TA_KEYBOARD),
1292 QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
1293 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1294 USB_DEVICE_ID_ASUSTEK_T100TAF_KEYBOARD),
1295 QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
1296 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) },
1297 { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) },
1298 { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) },
1299 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK,
1300 USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), QUIRK_T100CHI },
1301 { HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE_MEDION_E1239T),
1302 QUIRK_MEDION_E1239T },
1303 /*
1304 * Note bind to the HID_GROUP_GENERIC group, so that we only bind to the keyboard
1305 * part, while letting hid-multitouch.c handle the touchpad.
1306 */
1307 { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
1308 USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T101HA_KEYBOARD) },
1309 { }
1310};
1311MODULE_DEVICE_TABLE(hid, asus_devices);
1312
1313static struct hid_driver asus_driver = {
1314 .name = "asus",
1315 .id_table = asus_devices,
1316 .report_fixup = asus_report_fixup,
1317 .probe = asus_probe,
1318 .remove = asus_remove,
1319 .input_mapping = asus_input_mapping,
1320 .input_configured = asus_input_configured,
1321#ifdef CONFIG_PM
1322 .reset_resume = asus_reset_resume,
1323 .resume = asus_resume,
1324#endif
1325 .event = asus_event,
1326 .raw_event = asus_raw_event
1327};
1328module_hid_driver(asus_driver);
1329
1330MODULE_LICENSE("GPL");