drivers/hid/hid-asus.c

   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 <[email protected]>
  11  *
  12  *  This module based on hid-ortek by
  13  *  Copyright (c) 2010 Johnathon Harris <[email protected]>
  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 <[email protected]>
  19  *  Copyright (c) 2016 Victor Vlasenko <[email protected]>
  20  *  Copyright (c) 2016 Frederik Wenigwieser <[email protected]>
  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
  37 MODULE_AUTHOR("Yusuke Fujimaki <[email protected]>");
  38 MODULE_AUTHOR("Brendan McGrath <[email protected]>");
  39 MODULE_AUTHOR("Victor Vlasenko <[email protected]>");
  40 MODULE_AUTHOR("Frederik Wenigwieser <[email protected]>");
  41 MODULE_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
  97 struct 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
 106 struct 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
 116 struct 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
 132 static int asus_report_battery(struct asus_drvdata *, u8 *, int);
 133
 134 static 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
 142 static 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
 152 static 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
 162 static 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
 172 static 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
 182 static 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
 192 static 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 */
 220 static 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
 250 static 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
 283 static 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
 311 static 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
 324 static 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
 368 static 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
 389 static 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
 402 static 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
 435 static void asus_schedule_work(struct asus_kbd_leds *led)
 436 {
 437         unsigned long flags;
 438
 439         spin_lock_irqsave(&led->lock, flags);
 440         if (!led->removed)
 441                 schedule_work(&led->work);
 442         spin_unlock_irqrestore(&led->lock, flags);
 443 }
 444
 445 static void asus_kbd_backlight_set(struct led_classdev *led_cdev,
 446                                    enum led_brightness brightness)
 447 {
 448         struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
 449                                                  cdev);
 450         unsigned long flags;
 451
 452         spin_lock_irqsave(&led->lock, flags);
 453         led->brightness = brightness;
 454         spin_unlock_irqrestore(&led->lock, flags);
 455
 456         asus_schedule_work(led);
 457 }
 458
 459 static enum led_brightness asus_kbd_backlight_get(struct led_classdev *led_cdev)
 460 {
 461         struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
 462                                                  cdev);
 463         enum led_brightness brightness;
 464         unsigned long flags;
 465
 466         spin_lock_irqsave(&led->lock, flags);
 467         brightness = led->brightness;
 468         spin_unlock_irqrestore(&led->lock, flags);
 469
 470         return brightness;
 471 }
 472
 473 static void asus_kbd_backlight_work(struct work_struct *work)
 474 {
 475         struct asus_kbd_leds *led = container_of(work, struct asus_kbd_leds, work);
 476         u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4, 0x00 };
 477         int ret;
 478         unsigned long flags;
 479
 480         spin_lock_irqsave(&led->lock, flags);
 481         buf[4] = led->brightness;
 482         spin_unlock_irqrestore(&led->lock, flags);
 483
 484         ret = asus_kbd_set_report(led->hdev, buf, sizeof(buf));
 485         if (ret < 0)
 486                 hid_err(led->hdev, "Asus failed to set keyboard backlight: %d\n", ret);
 487 }
 488
 489 /* WMI-based keyboard backlight LED control (via asus-wmi driver) takes
 490  * precedence. We only activate HID-based backlight control when the
 491  * WMI control is not available.
 492  */
 493 static bool asus_kbd_wmi_led_control_present(struct hid_device *hdev)
 494 {
 495         struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
 496         u32 value;
 497         int ret;
 498
 499         if (!IS_ENABLED(CONFIG_ASUS_WMI))
 500                 return false;
 501
 502         if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD &&
 503                         dmi_check_system(asus_use_hid_led_dmi_ids)) {
 504                 hid_info(hdev, "using HID for asus::kbd_backlight\n");
 505                 return false;
 506         }
 507
 508         ret = asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS,
 509                                        ASUS_WMI_DEVID_KBD_BACKLIGHT, 0, &value);
 510         hid_dbg(hdev, "WMI backlight check: rc %d value %x", ret, value);
 511         if (ret)
 512                 return false;
 513
 514         return !!(value & ASUS_WMI_DSTS_PRESENCE_BIT);
 515 }
 516
 517 static int asus_kbd_register_leds(struct hid_device *hdev)
 518 {
 519         struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
 520         unsigned char kbd_func;
 521         int ret;
 522
 523         if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD) {
 524                 /* Initialize keyboard */
 525                 ret = asus_kbd_init(hdev, FEATURE_KBD_REPORT_ID);
 526                 if (ret < 0)
 527                         return ret;
 528
 529                 /* The LED endpoint is initialised in two HID */
 530                 ret = asus_kbd_init(hdev, FEATURE_KBD_LED_REPORT_ID1);
 531                 if (ret < 0)
 532                         return ret;
 533
 534                 ret = asus_kbd_init(hdev, FEATURE_KBD_LED_REPORT_ID2);
 535                 if (ret < 0)
 536                         return ret;
 537         } else {
 538                 /* Initialize keyboard */
 539                 ret = asus_kbd_init(hdev, FEATURE_KBD_REPORT_ID);
 540                 if (ret < 0)
 541                         return ret;
 542
 543                 /* Get keyboard functions */
 544                 ret = asus_kbd_get_functions(hdev, &kbd_func, FEATURE_KBD_REPORT_ID);
 545                 if (ret < 0)
 546                         return ret;
 547
 548                 /* Check for backlight support */
 549                 if (!(kbd_func & SUPPORT_KBD_BACKLIGHT))
 550                         return -ENODEV;
 551         }
 552
 553         drvdata->kbd_backlight = devm_kzalloc(&hdev->dev,
 554                                               sizeof(struct asus_kbd_leds),
 555                                               GFP_KERNEL);
 556         if (!drvdata->kbd_backlight)
 557                 return -ENOMEM;
 558
 559         drvdata->kbd_backlight->removed = false;
 560         drvdata->kbd_backlight->brightness = 0;
 561         drvdata->kbd_backlight->hdev = hdev;
 562         drvdata->kbd_backlight->cdev.name = "asus::kbd_backlight";
 563         drvdata->kbd_backlight->cdev.max_brightness = 3;
 564         drvdata->kbd_backlight->cdev.brightness_set = asus_kbd_backlight_set;
 565         drvdata->kbd_backlight->cdev.brightness_get = asus_kbd_backlight_get;
 566         INIT_WORK(&drvdata->kbd_backlight->work, asus_kbd_backlight_work);
 567         spin_lock_init(&drvdata->kbd_backlight->lock);
 568
 569         ret = devm_led_classdev_register(&hdev->dev, &drvdata->kbd_backlight->cdev);
 570         if (ret < 0) {
 571                 /* No need to have this still around */
 572                 devm_kfree(&hdev->dev, drvdata->kbd_backlight);
 573         }
 574
 575         return ret;
 576 }
 577
 578 /*
 579  * [0]       REPORT_ID (same value defined in report descriptor)
 580  * [1]       rest battery level. range [0..255]
 581  * [2]..[7]  Bluetooth hardware address (MAC address)
 582  * [8]       charging status
 583  *            = 0 : AC offline / discharging
 584  *            = 1 : AC online  / charging
 585  *            = 2 : AC online  / fully charged
 586  */
 587 static int asus_parse_battery(struct asus_drvdata *drvdata, u8 *data, int size)
 588 {
 589         u8 sts;
 590         u8 lvl;
 591         int val;
 592
 593         lvl = data[1];
 594         sts = data[8];
 595
 596         drvdata->battery_capacity = ((int)lvl * 100) / (int)BATTERY_LEVEL_MAX;
 597
 598         switch (sts) {
 599         case BATTERY_STAT_CHARGING:
 600                 val = POWER_SUPPLY_STATUS_CHARGING;
 601                 break;
 602         case BATTERY_STAT_FULL:
 603                 val = POWER_SUPPLY_STATUS_FULL;
 604                 break;
 605         case BATTERY_STAT_DISCONNECT:
 606         default:
 607                 val = POWER_SUPPLY_STATUS_DISCHARGING;
 608                 break;
 609         }
 610         drvdata->battery_stat = val;
 611
 612         return 0;
 613 }
 614
 615 static int asus_report_battery(struct asus_drvdata *drvdata, u8 *data, int size)
 616 {
 617         /* notify only the autonomous event by device */
 618         if ((drvdata->battery_in_query == false) &&
 619                          (size == BATTERY_REPORT_SIZE))
 620                 power_supply_changed(drvdata->battery);
 621
 622         return 0;
 623 }
 624
 625 static int asus_battery_query(struct asus_drvdata *drvdata)
 626 {
 627         u8 *buf;
 628         int ret = 0;
 629
 630         buf = kmalloc(BATTERY_REPORT_SIZE, GFP_KERNEL);
 631         if (!buf)
 632                 return -ENOMEM;
 633
 634         drvdata->battery_in_query = true;
 635         ret = hid_hw_raw_request(drvdata->hdev, BATTERY_REPORT_ID,
 636                                 buf, BATTERY_REPORT_SIZE,
 637                                 HID_INPUT_REPORT, HID_REQ_GET_REPORT);
 638         drvdata->battery_in_query = false;
 639         if (ret == BATTERY_REPORT_SIZE)
 640                 ret = asus_parse_battery(drvdata, buf, BATTERY_REPORT_SIZE);
 641         else
 642                 ret = -ENODATA;
 643
 644         kfree(buf);
 645
 646         return ret;
 647 }
 648
 649 static enum power_supply_property asus_battery_props[] = {
 650         POWER_SUPPLY_PROP_STATUS,
 651         POWER_SUPPLY_PROP_PRESENT,
 652         POWER_SUPPLY_PROP_CAPACITY,
 653         POWER_SUPPLY_PROP_SCOPE,
 654         POWER_SUPPLY_PROP_MODEL_NAME,
 655 };
 656
 657 #define QUERY_MIN_INTERVAL      (60 * HZ)       /* 60[sec] */
 658
 659 static int asus_battery_get_property(struct power_supply *psy,
 660                                 enum power_supply_property psp,
 661                                 union power_supply_propval *val)
 662 {
 663         struct asus_drvdata *drvdata = power_supply_get_drvdata(psy);
 664         int ret = 0;
 665
 666         switch (psp) {
 667         case POWER_SUPPLY_PROP_STATUS:
 668         case POWER_SUPPLY_PROP_CAPACITY:
 669                 if (time_before(drvdata->battery_next_query, jiffies)) {
 670                         drvdata->battery_next_query =
 671                                          jiffies + QUERY_MIN_INTERVAL;
 672                         ret = asus_battery_query(drvdata);
 673                         if (ret)
 674                                 return ret;
 675                 }
 676                 if (psp == POWER_SUPPLY_PROP_STATUS)
 677                         val->intval = drvdata->battery_stat;
 678                 else
 679                         val->intval = drvdata->battery_capacity;
 680                 break;
 681         case POWER_SUPPLY_PROP_PRESENT:
 682                 val->intval = 1;
 683                 break;
 684         case POWER_SUPPLY_PROP_SCOPE:
 685                 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
 686                 break;
 687         case POWER_SUPPLY_PROP_MODEL_NAME:
 688                 val->strval = drvdata->hdev->name;
 689                 break;
 690         default:
 691                 ret = -EINVAL;
 692                 break;
 693         }
 694
 695         return ret;
 696 }
 697
 698 static int asus_battery_probe(struct hid_device *hdev)
 699 {
 700         struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
 701         struct power_supply_config pscfg = { .drv_data = drvdata };
 702         int ret = 0;
 703
 704         drvdata->battery_capacity = 0;
 705         drvdata->battery_stat = POWER_SUPPLY_STATUS_UNKNOWN;
 706         drvdata->battery_in_query = false;
 707
 708         drvdata->battery_desc.properties = asus_battery_props;
 709         drvdata->battery_desc.num_properties = ARRAY_SIZE(asus_battery_props);
 710         drvdata->battery_desc.get_property = asus_battery_get_property;
 711         drvdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
 712         drvdata->battery_desc.use_for_apm = 0;
 713         drvdata->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
 714                                         "asus-keyboard-%s-battery",
 715                                         strlen(hdev->uniq) ?
 716                                         hdev->uniq : dev_name(&hdev->dev));
 717         if (!drvdata->battery_desc.name)
 718                 return -ENOMEM;
 719
 720         drvdata->battery_next_query = jiffies;
 721
 722         drvdata->battery = devm_power_supply_register(&hdev->dev,
 723                                 &(drvdata->battery_desc), &pscfg);
 724         if (IS_ERR(drvdata->battery)) {
 725                 ret = PTR_ERR(drvdata->battery);
 726                 drvdata->battery = NULL;
 727                 hid_err(hdev, "Unable to register battery device\n");
 728                 return ret;
 729         }
 730
 731         power_supply_powers(drvdata->battery, &hdev->dev);
 732
 733         return ret;
 734 }
 735
 736 static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi)
 737 {
 738         struct input_dev *input = hi->input;
 739         struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
 740
 741         /* T100CHI uses MULTI_INPUT, bind the touchpad to the mouse hid_input */
 742         if (drvdata->quirks & QUIRK_T100CHI &&
 743             hi->report->id != T100CHI_MOUSE_REPORT_ID)
 744                 return 0;
 745
 746         /* Handle MULTI_INPUT on E1239T mouse/touchpad USB interface */
 747         if (drvdata->tp && (drvdata->quirks & QUIRK_MEDION_E1239T)) {
 748                 switch (hi->report->id) {
 749                 case E1239T_TP_TOGGLE_REPORT_ID:
 750                         input_set_capability(input, EV_KEY, KEY_F21);
 751                         input->name = "Asus Touchpad Keys";
 752                         drvdata->tp_kbd_input = input;
 753                         return 0;
 754                 case INPUT_REPORT_ID:
 755                         break; /* Touchpad report, handled below */
 756                 default:
 757                         return 0; /* Ignore other reports */
 758                 }
 759         }
 760
 761         if (drvdata->tp) {
 762                 int ret;
 763
 764                 input_set_abs_params(input, ABS_MT_POSITION_X, 0,
 765                                      drvdata->tp->max_x, 0, 0);
 766                 input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
 767                                      drvdata->tp->max_y, 0, 0);
 768                 input_abs_set_res(input, ABS_MT_POSITION_X, drvdata->tp->res_x);
 769                 input_abs_set_res(input, ABS_MT_POSITION_Y, drvdata->tp->res_y);
 770
 771                 if (drvdata->tp->contact_size >= 5) {
 772                         input_set_abs_params(input, ABS_TOOL_WIDTH, 0,
 773                                              MAX_TOUCH_MAJOR, 0, 0);
 774                         input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0,
 775                                              MAX_TOUCH_MAJOR, 0, 0);
 776                         input_set_abs_params(input, ABS_MT_PRESSURE, 0,
 777                                               MAX_PRESSURE, 0, 0);
 778                 }
 779
 780                 __set_bit(BTN_LEFT, input->keybit);
 781                 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
 782
 783                 ret = input_mt_init_slots(input, drvdata->tp->max_contacts,
 784                                           INPUT_MT_POINTER);
 785
 786                 if (ret) {
 787                         hid_err(hdev, "Asus input mt init slots failed: %d\n", ret);
 788                         return ret;
 789                 }
 790         }
 791
 792         drvdata->input = input;
 793
 794         if (drvdata->enable_backlight &&
 795             !asus_kbd_wmi_led_control_present(hdev) &&
 796             asus_kbd_register_leds(hdev))
 797                 hid_warn(hdev, "Failed to initialize backlight.\n");
 798
 799         return 0;
 800 }
 801
 802 #define asus_map_key_clear(c)   hid_map_usage_clear(hi, usage, bit, \
 803                                                     max, EV_KEY, (c))
 804 static int asus_input_mapping(struct hid_device *hdev,
 805                 struct hid_input *hi, struct hid_field *field,
 806                 struct hid_usage *usage, unsigned long **bit,
 807                 int *max)
 808 {
 809         struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
 810
 811         if (drvdata->quirks & QUIRK_SKIP_INPUT_MAPPING) {
 812                 /* Don't map anything from the HID report.
 813                  * We do it all manually in asus_input_configured
 814                  */
 815                 return -1;
 816         }
 817
 818         /*
 819          * Ignore a bunch of bogus collections in the T100CHI descriptor.
 820          * This avoids a bunch of non-functional hid_input devices getting
 821          * created because of the T100CHI using HID_QUIRK_MULTI_INPUT.
 822          */
 823         if ((drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) &&
 824             (field->application == (HID_UP_GENDESK | 0x0080) ||
 825              field->application == HID_GD_MOUSE ||
 826              usage->hid == (HID_UP_GENDEVCTRLS | 0x0024) ||
 827              usage->hid == (HID_UP_GENDEVCTRLS | 0x0025) ||
 828              usage->hid == (HID_UP_GENDEVCTRLS | 0x0026)))
 829                 return -1;
 830
 831         /* ASUS-specific keyboard hotkeys and led backlight */
 832         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_ASUSVENDOR) {
 833                 switch (usage->hid & HID_USAGE) {
 834                 case 0x10: asus_map_key_clear(KEY_BRIGHTNESSDOWN);      break;
 835                 case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP);                break;
 836                 case 0x35: asus_map_key_clear(KEY_DISPLAY_OFF);         break;
 837                 case 0x6c: asus_map_key_clear(KEY_SLEEP);               break;
 838                 case 0x7c: asus_map_key_clear(KEY_MICMUTE);             break;
 839                 case 0x82: asus_map_key_clear(KEY_CAMERA);              break;
 840                 case 0x88: asus_map_key_clear(KEY_RFKILL);                      break;
 841                 case 0xb5: asus_map_key_clear(KEY_CALC);                        break;
 842                 case 0xc4: asus_map_key_clear(KEY_KBDILLUMUP);          break;
 843                 case 0xc5: asus_map_key_clear(KEY_KBDILLUMDOWN);                break;
 844                 case 0xc7: asus_map_key_clear(KEY_KBDILLUMTOGGLE);      break;
 845
 846                 case 0x6b: asus_map_key_clear(KEY_F21);         break; /* ASUS touchpad toggle */
 847                 case 0x38: asus_map_key_clear(KEY_PROG1);       break; /* ROG key */
 848                 case 0xba: asus_map_key_clear(KEY_PROG2);       break; /* Fn+C ASUS Splendid */
 849                 case 0x5c: asus_map_key_clear(KEY_PROG3);       break; /* Fn+Space Power4Gear */
 850                 case 0x99: asus_map_key_clear(KEY_PROG4);       break; /* Fn+F5 "fan" symbol */
 851                 case 0xae: asus_map_key_clear(KEY_PROG4);       break; /* Fn+F5 "fan" symbol */
 852                 case 0x92: asus_map_key_clear(KEY_CALC);        break; /* Fn+Ret "Calc" symbol */
 853                 case 0xb2: asus_map_key_clear(KEY_PROG2);       break; /* Fn+Left previous aura */
 854                 case 0xb3: asus_map_key_clear(KEY_PROG3);       break; /* Fn+Left next aura */
 855                 case 0x6a: asus_map_key_clear(KEY_F13);         break; /* Screenpad toggle */
 856                 case 0x4b: asus_map_key_clear(KEY_F14);         break; /* Arrows/Pg-Up/Dn toggle */
 857                 case 0xa5: asus_map_key_clear(KEY_F15);         break; /* ROG Ally left back */
 858                 case 0xa6: asus_map_key_clear(KEY_F16);         break; /* ROG Ally QAM button */
 859                 case 0xa7: asus_map_key_clear(KEY_F17);         break; /* ROG Ally ROG long-press */
 860                 case 0xa8: asus_map_key_clear(KEY_F18);         break; /* ROG Ally ROG long-press-release */
 861
 862                 default:
 863                         /* ASUS lazily declares 256 usages, ignore the rest,
 864                          * as some make the keyboard appear as a pointer device. */
 865                         return -1;
 866                 }
 867
 868                 /*
 869                  * Check and enable backlight only on devices with UsagePage ==
 870                  * 0xff31 to avoid initializing the keyboard firmware multiple
 871                  * times on devices with multiple HID descriptors but same
 872                  * PID/VID.
 873                  */
 874                 if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT)
 875                         drvdata->enable_backlight = true;
 876
 877                 set_bit(EV_REP, hi->input->evbit);
 878                 return 1;
 879         }
 880
 881         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) {
 882                 switch (usage->hid & HID_USAGE) {
 883                 case 0xff01: asus_map_key_clear(BTN_1); break;
 884                 case 0xff02: asus_map_key_clear(BTN_2); break;
 885                 case 0xff03: asus_map_key_clear(BTN_3); break;
 886                 case 0xff04: asus_map_key_clear(BTN_4); break;
 887                 case 0xff05: asus_map_key_clear(BTN_5); break;
 888                 case 0xff06: asus_map_key_clear(BTN_6); break;
 889                 case 0xff07: asus_map_key_clear(BTN_7); break;
 890                 case 0xff08: asus_map_key_clear(BTN_8); break;
 891                 case 0xff09: asus_map_key_clear(BTN_9); break;
 892                 case 0xff0a: asus_map_key_clear(BTN_A); break;
 893                 case 0xff0b: asus_map_key_clear(BTN_B); break;
 894                 case 0x00f1: asus_map_key_clear(KEY_WLAN);      break;
 895                 case 0x00f2: asus_map_key_clear(KEY_BRIGHTNESSDOWN);    break;
 896                 case 0x00f3: asus_map_key_clear(KEY_BRIGHTNESSUP);      break;
 897                 case 0x00f4: asus_map_key_clear(KEY_DISPLAY_OFF);       break;
 898                 case 0x00f7: asus_map_key_clear(KEY_CAMERA);    break;
 899                 case 0x00f8: asus_map_key_clear(KEY_PROG1);     break;
 900                 default:
 901                         return 0;
 902                 }
 903
 904                 set_bit(EV_REP, hi->input->evbit);
 905                 return 1;
 906         }
 907
 908         if (drvdata->quirks & QUIRK_NO_CONSUMER_USAGES &&
 909                 (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
 910                 switch (usage->hid & HID_USAGE) {
 911                 case 0xe2: /* Mute */
 912                 case 0xe9: /* Volume up */
 913                 case 0xea: /* Volume down */
 914                         return 0;
 915                 default:
 916                         /* Ignore dummy Consumer usages which make the
 917                          * keyboard incorrectly appear as a pointer device.
 918                          */
 919                         return -1;
 920                 }
 921         }
 922
 923         /*
 924          * The mute button is broken and only sends press events, we
 925          * deal with this in our raw_event handler, so do not map it.
 926          */
 927         if ((drvdata->quirks & QUIRK_MEDION_E1239T) &&
 928             usage->hid == (HID_UP_CONSUMER | 0xe2)) {
 929                 input_set_capability(hi->input, EV_KEY, KEY_MUTE);
 930                 return -1;
 931         }
 932
 933         return 0;
 934 }
 935
 936 static int asus_start_multitouch(struct hid_device *hdev)
 937 {
 938         int ret;
 939         static const unsigned char buf[] = {
 940                 FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00
 941         };
 942         unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL);
 943
 944         if (!dmabuf) {
 945                 ret = -ENOMEM;
 946                 hid_err(hdev, "Asus failed to alloc dma buf: %d\n", ret);
 947                 return ret;
 948         }
 949
 950         ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, sizeof(buf),
 951                                         HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 952
 953         kfree(dmabuf);
 954
 955         if (ret != sizeof(buf)) {
 956                 hid_err(hdev, "Asus failed to start multitouch: %d\n", ret);
 957                 return ret;
 958         }
 959
 960         return 0;
 961 }
 962
 963 static int __maybe_unused asus_resume(struct hid_device *hdev) {
 964         struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
 965         int ret = 0;
 966
 967         if (drvdata->kbd_backlight) {
 968                 const u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4,
 969                                 drvdata->kbd_backlight->cdev.brightness };
 970                 ret = asus_kbd_set_report(hdev, buf, sizeof(buf));
 971                 if (ret < 0) {
 972                         hid_err(hdev, "Asus failed to set keyboard backlight: %d\n", ret);
 973                         goto asus_resume_err;
 974                 }
 975         }
 976
 977 asus_resume_err:
 978         return ret;
 979 }
 980
 981 static int __maybe_unused asus_reset_resume(struct hid_device *hdev)
 982 {
 983         struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
 984
 985         if (drvdata->tp)
 986                 return asus_start_multitouch(hdev);
 987
 988         return 0;
 989 }
 990
 991 static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
 992 {
 993         int ret;
 994         struct asus_drvdata *drvdata;
 995
 996         drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
 997         if (drvdata == NULL) {
 998                 hid_err(hdev, "Can't alloc Asus descriptor\n");
 999                 return -ENOMEM;
1000         }
1001
1002         hid_set_drvdata(hdev, drvdata);
1003
1004         drvdata->quirks = id->driver_data;
1005
1006         /*
1007          * T90CHI's keyboard dock returns same ID values as T100CHI's dock.
1008          * Thus, identify T90CHI dock with product name string.
1009          */
1010         if (strstr(hdev->name, "T90CHI")) {
1011                 drvdata->quirks &= ~QUIRK_T100CHI;
1012                 drvdata->quirks |= QUIRK_T90CHI;
1013         }
1014
1015         if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
1016                 drvdata->tp = &asus_i2c_tp;
1017
1018         if ((drvdata->quirks & QUIRK_T100_KEYBOARD) && hid_is_usb(hdev)) {
1019                 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
1020
1021                 if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) {
1022                         drvdata->quirks = QUIRK_SKIP_INPUT_MAPPING;
1023                         /*
1024                          * The T100HA uses the same USB-ids as the T100TAF and
1025                          * the T200TA uses the same USB-ids as the T100TA, while
1026                          * both have different max x/y values as the T100TA[F].
1027                          */
1028                         if (dmi_match(DMI_PRODUCT_NAME, "T100HAN"))
1029                                 drvdata->tp = &asus_t100ha_tp;
1030                         else if (dmi_match(DMI_PRODUCT_NAME, "T200TA"))
1031                                 drvdata->tp = &asus_t200ta_tp;
1032                         else
1033                                 drvdata->tp = &asus_t100ta_tp;
1034                 }
1035         }
1036
1037         if (drvdata->quirks & QUIRK_T100CHI) {
1038                 /*
1039                  * All functionality is on a single HID interface and for
1040                  * userspace the touchpad must be a separate input_dev.
1041                  */
1042                 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
1043                 drvdata->tp = &asus_t100chi_tp;
1044         }
1045
1046         if ((drvdata->quirks & QUIRK_MEDION_E1239T) && hid_is_usb(hdev)) {
1047                 struct usb_host_interface *alt =
1048                         to_usb_interface(hdev->dev.parent)->altsetting;
1049
1050                 if (alt->desc.bInterfaceNumber == MEDION_E1239T_TPAD_INTF) {
1051                         /* For separate input-devs for tp and tp toggle key */
1052                         hdev->quirks |= HID_QUIRK_MULTI_INPUT;
1053                         drvdata->quirks |= QUIRK_SKIP_INPUT_MAPPING;
1054                         drvdata->tp = &medion_e1239t_tp;
1055                 }
1056         }
1057
1058         if (drvdata->quirks & QUIRK_NO_INIT_REPORTS)
1059                 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
1060
1061         drvdata->hdev = hdev;
1062
1063         if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
1064                 ret = asus_battery_probe(hdev);
1065                 if (ret) {
1066                         hid_err(hdev,
1067                             "Asus hid battery_probe failed: %d\n", ret);
1068                         return ret;
1069                 }
1070         }
1071
1072         ret = hid_parse(hdev);
1073         if (ret) {
1074                 hid_err(hdev, "Asus hid parse failed: %d\n", ret);
1075                 return ret;
1076         }
1077
1078         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1079         if (ret) {
1080                 hid_err(hdev, "Asus hw start failed: %d\n", ret);
1081                 return ret;
1082         }
1083
1084         if (!drvdata->input) {
1085                 hid_err(hdev, "Asus input not registered\n");
1086                 ret = -ENOMEM;
1087                 goto err_stop_hw;
1088         }
1089
1090         if (drvdata->tp) {
1091                 drvdata->input->name = "Asus TouchPad";
1092         } else {
1093                 drvdata->input->name = "Asus Keyboard";
1094         }
1095
1096         if (drvdata->tp) {
1097                 ret = asus_start_multitouch(hdev);
1098                 if (ret)
1099                         goto err_stop_hw;
1100         }
1101
1102         return 0;
1103 err_stop_hw:
1104         hid_hw_stop(hdev);
1105         return ret;
1106 }
1107
1108 static void asus_remove(struct hid_device *hdev)
1109 {
1110         struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
1111         unsigned long flags;
1112
1113         if (drvdata->kbd_backlight) {
1114                 spin_lock_irqsave(&drvdata->kbd_backlight->lock, flags);
1115                 drvdata->kbd_backlight->removed = true;
1116                 spin_unlock_irqrestore(&drvdata->kbd_backlight->lock, flags);
1117
1118                 cancel_work_sync(&drvdata->kbd_backlight->work);
1119         }
1120
1121         hid_hw_stop(hdev);
1122 }
1123
1124 static const __u8 asus_g752_fixed_rdesc[] = {
1125         0x19, 0x00,                     /*   Usage Minimum (0x00)       */
1126         0x2A, 0xFF, 0x00,               /*   Usage Maximum (0xFF)       */
1127 };
1128
1129 static const __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
1130                 unsigned int *rsize)
1131 {
1132         struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
1133
1134         if (drvdata->quirks & QUIRK_FIX_NOTEBOOK_REPORT &&
1135                         *rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x65) {
1136                 hid_info(hdev, "Fixing up Asus notebook report descriptor\n");
1137                 rdesc[55] = 0xdd;
1138         }
1139         /* For the T100TA/T200TA keyboard dock */
1140         if (drvdata->quirks & QUIRK_T100_KEYBOARD &&
1141                  (*rsize == 76 || *rsize == 101) &&
1142                  rdesc[73] == 0x81 && rdesc[74] == 0x01) {
1143                 hid_info(hdev, "Fixing up Asus T100 keyb report descriptor\n");
1144                 rdesc[74] &= ~HID_MAIN_ITEM_CONSTANT;
1145         }
1146         /* For the T100CHI/T90CHI keyboard dock */
1147         if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
1148                 int rsize_orig;
1149                 int offs;
1150
1151                 if (drvdata->quirks & QUIRK_T100CHI) {
1152                         rsize_orig = 403;
1153                         offs = 388;
1154                 } else {
1155                         rsize_orig = 306;
1156                         offs = 291;
1157                 }
1158
1159                 /*
1160                  * Change Usage (76h) to Usage Minimum (00h), Usage Maximum
1161                  * (FFh) and clear the flags in the Input() byte.
1162                  * Note the descriptor has a bogus 0 byte at the end so we
1163                  * only need 1 extra byte.
1164                  */
1165                 if (*rsize == rsize_orig &&
1166                         rdesc[offs] == 0x09 && rdesc[offs + 1] == 0x76) {
1167                         *rsize = rsize_orig + 1;
1168                         rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL);
1169                         if (!rdesc)
1170                                 return NULL;
1171
1172                         hid_info(hdev, "Fixing up %s keyb report descriptor\n",
1173                                 drvdata->quirks & QUIRK_T100CHI ?
1174                                 "T100CHI" : "T90CHI");
1175                         memmove(rdesc + offs + 4, rdesc + offs + 2, 12);
1176                         rdesc[offs] = 0x19;
1177                         rdesc[offs + 1] = 0x00;
1178                         rdesc[offs + 2] = 0x29;
1179                         rdesc[offs + 3] = 0xff;
1180                         rdesc[offs + 14] = 0x00;
1181                 }
1182         }
1183
1184         if (drvdata->quirks & QUIRK_G752_KEYBOARD &&
1185                  *rsize == 75 && rdesc[61] == 0x15 && rdesc[62] == 0x00) {
1186                 /* report is missing usage minimum and maximum */
1187                 __u8 *new_rdesc;
1188                 size_t new_size = *rsize + sizeof(asus_g752_fixed_rdesc);
1189
1190                 new_rdesc = devm_kzalloc(&hdev->dev, new_size, GFP_KERNEL);
1191                 if (new_rdesc == NULL)
1192                         return rdesc;
1193
1194                 hid_info(hdev, "Fixing up Asus G752 keyb report descriptor\n");
1195                 /* copy the valid part */
1196                 memcpy(new_rdesc, rdesc, 61);
1197                 /* insert missing part */
1198                 memcpy(new_rdesc + 61, asus_g752_fixed_rdesc, sizeof(asus_g752_fixed_rdesc));
1199                 /* copy remaining data */
1200                 memcpy(new_rdesc + 61 + sizeof(asus_g752_fixed_rdesc), rdesc + 61, *rsize - 61);
1201
1202                 *rsize = new_size;
1203                 rdesc = new_rdesc;
1204         }
1205
1206         if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD &&
1207                         *rsize == 331 && rdesc[190] == 0x85 && rdesc[191] == 0x5a &&
1208                         rdesc[204] == 0x95 && rdesc[205] == 0x05) {
1209                 hid_info(hdev, "Fixing up Asus N-KEY keyb report descriptor\n");
1210                 rdesc[205] = 0x01;
1211         }
1212
1213         /* match many more n-key devices */
1214         if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD && *rsize > 15) {
1215                 for (int i = 0; i < *rsize - 15; i++) {
1216                         /* offset to the count from 0x5a report part always 14 */
1217                         if (rdesc[i] == 0x85 && rdesc[i + 1] == 0x5a &&
1218                             rdesc[i + 14] == 0x95 && rdesc[i + 15] == 0x05) {
1219                                 hid_info(hdev, "Fixing up Asus N-Key report descriptor\n");
1220                                 rdesc[i + 15] = 0x01;
1221                                 break;
1222                         }
1223                 }
1224         }
1225
1226         return rdesc;
1227 }
1228
1229 static const struct hid_device_id asus_devices[] = {
1230         { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
1231                 USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD), I2C_KEYBOARD_QUIRKS},
1232         { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
1233                 USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), I2C_TOUCHPAD_QUIRKS },
1234         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1235                 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1), QUIRK_USE_KBD_BACKLIGHT },
1236         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1237                 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT },
1238         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1239                 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3), QUIRK_G752_KEYBOARD },
1240         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1241                 USB_DEVICE_ID_ASUSTEK_FX503VD_KEYBOARD),
1242           QUIRK_USE_KBD_BACKLIGHT },
1243         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1244             USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD),
1245           QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
1246         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1247             USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD2),
1248           QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
1249         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1250             USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD3),
1251           QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
1252         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1253             USB_DEVICE_ID_ASUSTEK_ROG_Z13_LIGHTBAR),
1254           QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
1255         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1256             USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY),
1257           QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
1258         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1259             USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY_X),
1260           QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
1261         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1262             USB_DEVICE_ID_ASUSTEK_ROG_CLAYMORE_II_KEYBOARD),
1263           QUIRK_ROG_CLAYMORE_II_KEYBOARD },
1264         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1265                 USB_DEVICE_ID_ASUSTEK_T100TA_KEYBOARD),
1266           QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
1267         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
1268                 USB_DEVICE_ID_ASUSTEK_T100TAF_KEYBOARD),
1269           QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
1270         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) },
1271         { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) },
1272         { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) },
1273         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK,
1274                 USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), QUIRK_T100CHI },
1275         { HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE_MEDION_E1239T),
1276                 QUIRK_MEDION_E1239T },
1277         /*
1278          * Note bind to the HID_GROUP_GENERIC group, so that we only bind to the keyboard
1279          * part, while letting hid-multitouch.c handle the touchpad.
1280          */
1281         { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
1282                 USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T101HA_KEYBOARD) },
1283         { }
1284 };
1285 MODULE_DEVICE_TABLE(hid, asus_devices);
1286
1287 static struct hid_driver asus_driver = {
1288         .name                   = "asus",
1289         .id_table               = asus_devices,
1290         .report_fixup           = asus_report_fixup,
1291         .probe                  = asus_probe,
1292         .remove                 = asus_remove,
1293         .input_mapping          = asus_input_mapping,
1294         .input_configured       = asus_input_configured,
1295 #ifdef CONFIG_PM
1296         .reset_resume           = asus_reset_resume,
1297         .resume                                 = asus_resume,
1298 #endif
1299         .event                  = asus_event,
1300         .raw_event              = asus_raw_event
1301 };
1302 module_hid_driver(asus_driver);
1303
1304 MODULE_LICENSE("GPL");