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hid-asus.c
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linux-6.19.14/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 <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/platform_data/x86/asus-wmi-leds-ids.h> 31#include <linux/input/mt.h> 32#include <linux/usb.h> /* For to_usb_interface for T100 touchpad intf check */ 33#include <linux/power_supply.h> 34#include <linux/leds.h> 35 36#include "hid-ids.h" 37 38MODULE_AUTHOR("Yusuke Fujimaki <usk.fujimaki@gmail.com>"); 39MODULE_AUTHOR("Brendan McGrath <redmcg@redmandi.dyndns.org>"); 40MODULE_AUTHOR("Victor Vlasenko <victor.vlasenko@sysgears.com>"); 41MODULE_AUTHOR("Frederik Wenigwieser <frederik.wenigwieser@gmail.com>"); 42MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad"); 43 44#define T100_TPAD_INTF 2 45#define MEDION_E1239T_TPAD_INTF 1 46 47#define E1239T_TP_TOGGLE_REPORT_ID 0x05 48#define T100CHI_MOUSE_REPORT_ID 0x06 49#define FEATURE_REPORT_ID 0x0d 50#define INPUT_REPORT_ID 0x5d 51#define FEATURE_KBD_REPORT_ID 0x5a 52#define FEATURE_KBD_REPORT_SIZE 16 53#define FEATURE_KBD_LED_REPORT_ID1 0x5d 54#define FEATURE_KBD_LED_REPORT_ID2 0x5e 55 56#define ROG_ALLY_REPORT_SIZE 64 57#define ROG_ALLY_X_MIN_MCU 313 58#define ROG_ALLY_MIN_MCU 319 59 60#define SUPPORT_KBD_BACKLIGHT BIT(0) 61 62#define MAX_TOUCH_MAJOR 8 63#define MAX_PRESSURE 128 64 65#define BTN_LEFT_MASK 0x01 66#define CONTACT_TOOL_TYPE_MASK 0x80 67#define CONTACT_X_MSB_MASK 0xf0 68#define CONTACT_Y_MSB_MASK 0x0f 69#define CONTACT_TOUCH_MAJOR_MASK 0x07 70#define CONTACT_PRESSURE_MASK 0x7f 71 72#define BATTERY_REPORT_ID (0x03) 73#define BATTERY_REPORT_SIZE (1 + 8) 74#define BATTERY_LEVEL_MAX ((u8)255) 75#define BATTERY_STAT_DISCONNECT (0) 76#define BATTERY_STAT_CHARGING (1) 77#define BATTERY_STAT_FULL (2) 78 79#define QUIRK_FIX_NOTEBOOK_REPORT BIT(0) 80#define QUIRK_NO_INIT_REPORTS BIT(1) 81#define QUIRK_SKIP_INPUT_MAPPING BIT(2) 82#define QUIRK_IS_MULTITOUCH BIT(3) 83#define QUIRK_NO_CONSUMER_USAGES BIT(4) 84#define QUIRK_USE_KBD_BACKLIGHT BIT(5) 85#define QUIRK_T100_KEYBOARD BIT(6) 86#define QUIRK_T100CHI BIT(7) 87#define QUIRK_G752_KEYBOARD BIT(8) 88#define QUIRK_T90CHI BIT(9) 89#define QUIRK_MEDION_E1239T BIT(10) 90#define QUIRK_ROG_NKEY_KEYBOARD BIT(11) 91#define QUIRK_ROG_CLAYMORE_II_KEYBOARD BIT(12) 92#define QUIRK_ROG_ALLY_XPAD BIT(13) 93 94#define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \ 95 QUIRK_NO_INIT_REPORTS | \ 96 QUIRK_NO_CONSUMER_USAGES) 97#define I2C_TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \ 98 QUIRK_SKIP_INPUT_MAPPING | \ 99 QUIRK_IS_MULTITOUCH) 100 101#define TRKID_SGN ((TRKID_MAX + 1) >> 1) 102 103struct asus_kbd_leds { 104 struct led_classdev cdev; 105 struct hid_device *hdev; 106 struct work_struct work; 107 unsigned int brightness; 108 spinlock_t lock; 109 bool removed; 110}; 111 112struct asus_touchpad_info { 113 int max_x; 114 int max_y; 115 int res_x; 116 int res_y; 117 int contact_size; 118 int max_contacts; 119 int report_size; 120}; 121 122struct asus_drvdata { 123 unsigned long quirks; 124 struct hid_device *hdev; 125 struct input_dev *input; 126 struct input_dev *tp_kbd_input; 127 struct asus_kbd_leds *kbd_backlight; 128 const struct asus_touchpad_info *tp; 129 bool enable_backlight; 130 struct power_supply *battery; 131 struct power_supply_desc battery_desc; 132 int battery_capacity; 133 int battery_stat; 134 bool battery_in_query; 135 unsigned long battery_next_query; 136}; 137 138static int asus_report_battery(struct asus_drvdata *, u8 *, int); 139 140static const struct asus_touchpad_info asus_i2c_tp = { 141 .max_x = 2794, 142 .max_y = 1758, 143 .contact_size = 5, 144 .max_contacts = 5, 145 .report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */, 146}; 147 148static const struct asus_touchpad_info asus_t100ta_tp = { 149 .max_x = 2240, 150 .max_y = 1120, 151 .res_x = 30, /* units/mm */ 152 .res_y = 27, /* units/mm */ 153 .contact_size = 5, 154 .max_contacts = 5, 155 .report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */, 156}; 157 158static const struct asus_touchpad_info asus_t100ha_tp = { 159 .max_x = 2640, 160 .max_y = 1320, 161 .res_x = 30, /* units/mm */ 162 .res_y = 29, /* units/mm */ 163 .contact_size = 5, 164 .max_contacts = 5, 165 .report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */, 166}; 167 168static const struct asus_touchpad_info asus_t200ta_tp = { 169 .max_x = 3120, 170 .max_y = 1716, 171 .res_x = 30, /* units/mm */ 172 .res_y = 28, /* units/mm */ 173 .contact_size = 5, 174 .max_contacts = 5, 175 .report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */, 176}; 177 178static const struct asus_touchpad_info asus_t100chi_tp = { 179 .max_x = 2640, 180 .max_y = 1320, 181 .res_x = 31, /* units/mm */ 182 .res_y = 29, /* units/mm */ 183 .contact_size = 3, 184 .max_contacts = 4, 185 .report_size = 15 /* 2 byte header + 3 * 4 + 1 byte footer */, 186}; 187 188static const struct asus_touchpad_info medion_e1239t_tp = { 189 .max_x = 2640, 190 .max_y = 1380, 191 .res_x = 29, /* units/mm */ 192 .res_y = 28, /* units/mm */ 193 .contact_size = 5, 194 .max_contacts = 5, 195 .report_size = 32 /* 2 byte header + 5 * 5 + 5 byte footer */, 196}; 197 198static void asus_report_contact_down(struct asus_drvdata *drvdat, 199 int toolType, u8 *data) 200{ 201 struct input_dev *input = drvdat->input; 202 int touch_major, pressure, x, y; 203 204 x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1]; 205 y = drvdat->tp->max_y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]); 206 207 input_report_abs(input, ABS_MT_POSITION_X, x); 208 input_report_abs(input, ABS_MT_POSITION_Y, y); 209 210 if (drvdat->tp->contact_size < 5) 211 return; 212 213 if (toolType == MT_TOOL_PALM) { 214 touch_major = MAX_TOUCH_MAJOR; 215 pressure = MAX_PRESSURE; 216 } else { 217 touch_major = (data[3] >> 4) & CONTACT_TOUCH_MAJOR_MASK; 218 pressure = data[4] & CONTACT_PRESSURE_MASK; 219 } 220 221 input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major); 222 input_report_abs(input, ABS_MT_PRESSURE, pressure); 223} 224 225/* Required for Synaptics Palm Detection */ 226static void asus_report_tool_width(struct asus_drvdata *drvdat) 227{ 228 struct input_mt *mt = drvdat->input->mt; 229 struct input_mt_slot *oldest; 230 int oldid, i; 231 232 if (drvdat->tp->contact_size < 5) 233 return; 234 235 oldest = NULL; 236 oldid = mt->trkid; 237 238 for (i = 0; i < mt->num_slots; ++i) { 239 struct input_mt_slot *ps = &mt->slots[i]; 240 int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID); 241 242 if (id < 0) 243 continue; 244 if ((id - oldid) & TRKID_SGN) { 245 oldest = ps; 246 oldid = id; 247 } 248 } 249 250 if (oldest) { 251 input_report_abs(drvdat->input, ABS_TOOL_WIDTH, 252 input_mt_get_value(oldest, ABS_MT_TOUCH_MAJOR)); 253 } 254} 255 256static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size) 257{ 258 int i, toolType = MT_TOOL_FINGER; 259 u8 *contactData = data + 2; 260 261 if (size != drvdat->tp->report_size) 262 return 0; 263 264 for (i = 0; i < drvdat->tp->max_contacts; i++) { 265 bool down = !!(data[1] & BIT(i+3)); 266 267 if (drvdat->tp->contact_size >= 5) 268 toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ? 269 MT_TOOL_PALM : MT_TOOL_FINGER; 270 271 input_mt_slot(drvdat->input, i); 272 input_mt_report_slot_state(drvdat->input, toolType, down); 273 274 if (down) { 275 asus_report_contact_down(drvdat, toolType, contactData); 276 contactData += drvdat->tp->contact_size; 277 } 278 } 279 280 input_report_key(drvdat->input, BTN_LEFT, data[1] & BTN_LEFT_MASK); 281 asus_report_tool_width(drvdat); 282 283 input_mt_sync_frame(drvdat->input); 284 input_sync(drvdat->input); 285 286 return 1; 287} 288 289static int asus_e1239t_event(struct asus_drvdata *drvdat, u8 *data, int size) 290{ 291 if (size != 3) 292 return 0; 293 294 /* Handle broken mute key which only sends press events */ 295 if (!drvdat->tp && 296 data[0] == 0x02 && data[1] == 0xe2 && data[2] == 0x00) { 297 input_report_key(drvdat->input, KEY_MUTE, 1); 298 input_sync(drvdat->input); 299 input_report_key(drvdat->input, KEY_MUTE, 0); 300 input_sync(drvdat->input); 301 return 1; 302 } 303 304 /* Handle custom touchpad toggle key which only sends press events */ 305 if (drvdat->tp_kbd_input && 306 data[0] == 0x05 && data[1] == 0x02 && data[2] == 0x28) { 307 input_report_key(drvdat->tp_kbd_input, KEY_F21, 1); 308 input_sync(drvdat->tp_kbd_input); 309 input_report_key(drvdat->tp_kbd_input, KEY_F21, 0); 310 input_sync(drvdat->tp_kbd_input); 311 return 1; 312 } 313 314 return 0; 315} 316 317static int asus_event(struct hid_device *hdev, struct hid_field *field, 318 struct hid_usage *usage, __s32 value) 319{ 320 if ((usage->hid & HID_USAGE_PAGE) == 0xff310000 && 321 (usage->hid & HID_USAGE) != 0x00 && 322 (usage->hid & HID_USAGE) != 0xff && !usage->type) { 323 hid_warn(hdev, "Unmapped Asus vendor usagepage code 0x%02x\n", 324 usage->hid & HID_USAGE); 325 } 326 327 return 0; 328} 329 330static int asus_raw_event(struct hid_device *hdev, 331 struct hid_report *report, u8 *data, int size) 332{ 333 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 334 335 if (drvdata->battery && data[0] == BATTERY_REPORT_ID) 336 return asus_report_battery(drvdata, data, size); 337 338 if (drvdata->tp && data[0] == INPUT_REPORT_ID) 339 return asus_report_input(drvdata, data, size); 340 341 if (drvdata->quirks & QUIRK_MEDION_E1239T) 342 return asus_e1239t_event(drvdata, data, size); 343 344 /* 345 * Skip these report ID, the device emits a continuous stream associated 346 * with the AURA mode it is in which looks like an 'echo'. 347 */ 348 if (report->id == FEATURE_KBD_LED_REPORT_ID1 || report->id == FEATURE_KBD_LED_REPORT_ID2) 349 return -1; 350 if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD) { 351 /* 352 * G713 and G733 send these codes on some keypresses, depending on 353 * the key pressed it can trigger a shutdown event if not caught. 354 */ 355 if (data[0] == 0x02 && data[1] == 0x30) { 356 return -1; 357 } 358 } 359 360 if (drvdata->quirks & QUIRK_ROG_CLAYMORE_II_KEYBOARD) { 361 /* 362 * CLAYMORE II keyboard sends this packet when it goes to sleep 363 * this causes the whole system to go into suspend. 364 */ 365 366 if(size == 2 && data[0] == 0x02 && data[1] == 0x00) { 367 return -1; 368 } 369 } 370 371 return 0; 372} 373 374static int asus_kbd_set_report(struct hid_device *hdev, const u8 *buf, size_t buf_size) 375{ 376 unsigned char *dmabuf; 377 int ret; 378 379 dmabuf = kmemdup(buf, buf_size, GFP_KERNEL); 380 if (!dmabuf) 381 return -ENOMEM; 382 383 /* 384 * The report ID should be set from the incoming buffer due to LED and key 385 * interfaces having different pages 386 */ 387 ret = hid_hw_raw_request(hdev, buf[0], dmabuf, 388 buf_size, HID_FEATURE_REPORT, 389 HID_REQ_SET_REPORT); 390 kfree(dmabuf); 391 392 return ret; 393} 394 395static int asus_kbd_init(struct hid_device *hdev, u8 report_id) 396{ 397 const u8 buf[] = { report_id, 0x41, 0x53, 0x55, 0x53, 0x20, 0x54, 398 0x65, 0x63, 0x68, 0x2e, 0x49, 0x6e, 0x63, 0x2e, 0x00 }; 399 int ret; 400 401 ret = asus_kbd_set_report(hdev, buf, sizeof(buf)); 402 if (ret < 0) 403 hid_err(hdev, "Asus failed to send init command: %d\n", ret); 404 405 return ret; 406} 407 408static int asus_kbd_get_functions(struct hid_device *hdev, 409 unsigned char *kbd_func, 410 u8 report_id) 411{ 412 const u8 buf[] = { report_id, 0x05, 0x20, 0x31, 0x00, 0x08 }; 413 u8 *readbuf; 414 int ret; 415 416 ret = asus_kbd_set_report(hdev, buf, sizeof(buf)); 417 if (ret < 0) { 418 hid_err(hdev, "Asus failed to send configuration command: %d\n", ret); 419 return ret; 420 } 421 422 readbuf = kzalloc(FEATURE_KBD_REPORT_SIZE, GFP_KERNEL); 423 if (!readbuf) 424 return -ENOMEM; 425 426 ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, readbuf, 427 FEATURE_KBD_REPORT_SIZE, HID_FEATURE_REPORT, 428 HID_REQ_GET_REPORT); 429 if (ret < 0) { 430 hid_err(hdev, "Asus failed to request functions: %d\n", ret); 431 kfree(readbuf); 432 return ret; 433 } 434 435 *kbd_func = readbuf[6]; 436 437 kfree(readbuf); 438 return ret; 439} 440 441static int asus_kbd_disable_oobe(struct hid_device *hdev) 442{ 443 const u8 init[][6] = { 444 { FEATURE_KBD_REPORT_ID, 0x05, 0x20, 0x31, 0x00, 0x08 }, 445 { FEATURE_KBD_REPORT_ID, 0xBA, 0xC5, 0xC4 }, 446 { FEATURE_KBD_REPORT_ID, 0xD0, 0x8F, 0x01 }, 447 { FEATURE_KBD_REPORT_ID, 0xD0, 0x85, 0xFF } 448 }; 449 int ret; 450 451 for (size_t i = 0; i < ARRAY_SIZE(init); i++) { 452 ret = asus_kbd_set_report(hdev, init[i], sizeof(init[i])); 453 if (ret < 0) 454 return ret; 455 } 456 457 hid_info(hdev, "Disabled OOBE for keyboard\n"); 458 return 0; 459} 460 461static void asus_schedule_work(struct asus_kbd_leds *led) 462{ 463 unsigned long flags; 464 465 spin_lock_irqsave(&led->lock, flags); 466 if (!led->removed) 467 schedule_work(&led->work); 468 spin_unlock_irqrestore(&led->lock, flags); 469} 470 471static void asus_kbd_backlight_set(struct led_classdev *led_cdev, 472 enum led_brightness brightness) 473{ 474 struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds, 475 cdev); 476 unsigned long flags; 477 478 spin_lock_irqsave(&led->lock, flags); 479 led->brightness = brightness; 480 spin_unlock_irqrestore(&led->lock, flags); 481 482 asus_schedule_work(led); 483} 484 485static enum led_brightness asus_kbd_backlight_get(struct led_classdev *led_cdev) 486{ 487 struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds, 488 cdev); 489 enum led_brightness brightness; 490 unsigned long flags; 491 492 spin_lock_irqsave(&led->lock, flags); 493 brightness = led->brightness; 494 spin_unlock_irqrestore(&led->lock, flags); 495 496 return brightness; 497} 498 499static void asus_kbd_backlight_work(struct work_struct *work) 500{ 501 struct asus_kbd_leds *led = container_of(work, struct asus_kbd_leds, work); 502 u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4, 0x00 }; 503 int ret; 504 unsigned long flags; 505 506 spin_lock_irqsave(&led->lock, flags); 507 buf[4] = led->brightness; 508 spin_unlock_irqrestore(&led->lock, flags); 509 510 ret = asus_kbd_set_report(led->hdev, buf, sizeof(buf)); 511 if (ret < 0) 512 hid_err(led->hdev, "Asus failed to set keyboard backlight: %d\n", ret); 513} 514 515/* WMI-based keyboard backlight LED control (via asus-wmi driver) takes 516 * precedence. We only activate HID-based backlight control when the 517 * WMI control is not available. 518 */ 519static bool asus_kbd_wmi_led_control_present(struct hid_device *hdev) 520{ 521 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 522 u32 value; 523 int ret; 524 525 if (!IS_ENABLED(CONFIG_ASUS_WMI)) 526 return false; 527 528 if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD && 529 dmi_check_system(asus_use_hid_led_dmi_ids)) { 530 hid_info(hdev, "using HID for asus::kbd_backlight\n"); 531 return false; 532 } 533 534 ret = asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS, 535 ASUS_WMI_DEVID_KBD_BACKLIGHT, 0, &value); 536 hid_dbg(hdev, "WMI backlight check: rc %d value %x", ret, value); 537 if (ret) 538 return false; 539 540 return !!(value & ASUS_WMI_DSTS_PRESENCE_BIT); 541} 542 543/* 544 * We don't care about any other part of the string except the version section. 545 * Example strings: FGA80100.RC72LA.312_T01, FGA80100.RC71LS.318_T01 546 * The bytes "5a 05 03 31 00 1a 13" and possibly more come before the version 547 * string, and there may be additional bytes after the version string such as 548 * "75 00 74 00 65 00" or a postfix such as "_T01" 549 */ 550static int mcu_parse_version_string(const u8 *response, size_t response_size) 551{ 552 const u8 *end = response + response_size; 553 const u8 *p = response; 554 int dots, err, version; 555 char buf[4]; 556 557 dots = 0; 558 while (p < end && dots < 2) { 559 if (*p++ == '.') 560 dots++; 561 } 562 563 if (dots != 2 || p >= end || (p + 3) >= end) 564 return -EINVAL; 565 566 memcpy(buf, p, 3); 567 buf[3] = '\0'; 568 569 err = kstrtoint(buf, 10, &version); 570 if (err || version < 0) 571 return -EINVAL; 572 573 return version; 574} 575 576static int mcu_request_version(struct hid_device *hdev) 577{ 578 u8 *response __free(kfree) = kzalloc(ROG_ALLY_REPORT_SIZE, GFP_KERNEL); 579 const u8 request[] = { 0x5a, 0x05, 0x03, 0x31, 0x00, 0x20 }; 580 int ret; 581 582 if (!response) 583 return -ENOMEM; 584 585 ret = asus_kbd_set_report(hdev, request, sizeof(request)); 586 if (ret < 0) 587 return ret; 588 589 ret = hid_hw_raw_request(hdev, FEATURE_REPORT_ID, response, 590 ROG_ALLY_REPORT_SIZE, HID_FEATURE_REPORT, 591 HID_REQ_GET_REPORT); 592 if (ret < 0) 593 return ret; 594 595 ret = mcu_parse_version_string(response, ROG_ALLY_REPORT_SIZE); 596 if (ret < 0) { 597 pr_err("Failed to parse MCU version: %d\n", ret); 598 print_hex_dump(KERN_ERR, "MCU: ", DUMP_PREFIX_NONE, 599 16, 1, response, ROG_ALLY_REPORT_SIZE, false); 600 } 601 602 return ret; 603} 604 605static void validate_mcu_fw_version(struct hid_device *hdev, int idProduct) 606{ 607 int min_version, version; 608 609 version = mcu_request_version(hdev); 610 if (version < 0) 611 return; 612 613 switch (idProduct) { 614 case USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY: 615 min_version = ROG_ALLY_MIN_MCU; 616 break; 617 case USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY_X: 618 min_version = ROG_ALLY_X_MIN_MCU; 619 break; 620 default: 621 min_version = 0; 622 } 623 624 if (version < min_version) { 625 hid_warn(hdev, 626 "The MCU firmware version must be %d or greater to avoid issues with suspend.\n", 627 min_version); 628 } else { 629 set_ally_mcu_hack(ASUS_WMI_ALLY_MCU_HACK_DISABLED); 630 set_ally_mcu_powersave(true); 631 } 632} 633 634static int asus_kbd_register_leds(struct hid_device *hdev) 635{ 636 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 637 struct usb_interface *intf; 638 struct usb_device *udev; 639 unsigned char kbd_func; 640 int ret; 641 642 if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD) { 643 /* Initialize keyboard */ 644 ret = asus_kbd_init(hdev, FEATURE_KBD_REPORT_ID); 645 if (ret < 0) 646 return ret; 647 648 /* The LED endpoint is initialised in two HID */ 649 ret = asus_kbd_init(hdev, FEATURE_KBD_LED_REPORT_ID1); 650 if (ret < 0) 651 return ret; 652 653 ret = asus_kbd_init(hdev, FEATURE_KBD_LED_REPORT_ID2); 654 if (ret < 0) 655 return ret; 656 657 if (dmi_match(DMI_PRODUCT_FAMILY, "ProArt P16")) { 658 ret = asus_kbd_disable_oobe(hdev); 659 if (ret < 0) 660 return ret; 661 } 662 663 if (drvdata->quirks & QUIRK_ROG_ALLY_XPAD) { 664 intf = to_usb_interface(hdev->dev.parent); 665 udev = interface_to_usbdev(intf); 666 validate_mcu_fw_version(hdev, 667 le16_to_cpu(udev->descriptor.idProduct)); 668 } 669 670 } else { 671 /* Initialize keyboard */ 672 ret = asus_kbd_init(hdev, FEATURE_KBD_REPORT_ID); 673 if (ret < 0) 674 return ret; 675 676 /* Get keyboard functions */ 677 ret = asus_kbd_get_functions(hdev, &kbd_func, FEATURE_KBD_REPORT_ID); 678 if (ret < 0) 679 return ret; 680 681 /* Check for backlight support */ 682 if (!(kbd_func & SUPPORT_KBD_BACKLIGHT)) 683 return -ENODEV; 684 } 685 686 drvdata->kbd_backlight = devm_kzalloc(&hdev->dev, 687 sizeof(struct asus_kbd_leds), 688 GFP_KERNEL); 689 if (!drvdata->kbd_backlight) 690 return -ENOMEM; 691 692 drvdata->kbd_backlight->removed = false; 693 drvdata->kbd_backlight->brightness = 0; 694 drvdata->kbd_backlight->hdev = hdev; 695 drvdata->kbd_backlight->cdev.name = "asus::kbd_backlight"; 696 drvdata->kbd_backlight->cdev.max_brightness = 3; 697 drvdata->kbd_backlight->cdev.brightness_set = asus_kbd_backlight_set; 698 drvdata->kbd_backlight->cdev.brightness_get = asus_kbd_backlight_get; 699 INIT_WORK(&drvdata->kbd_backlight->work, asus_kbd_backlight_work); 700 spin_lock_init(&drvdata->kbd_backlight->lock); 701 702 ret = devm_led_classdev_register(&hdev->dev, &drvdata->kbd_backlight->cdev); 703 if (ret < 0) { 704 /* No need to have this still around */ 705 devm_kfree(&hdev->dev, drvdata->kbd_backlight); 706 } 707 708 return ret; 709} 710 711/* 712 * [0] REPORT_ID (same value defined in report descriptor) 713 * [1] rest battery level. range [0..255] 714 * [2]..[7] Bluetooth hardware address (MAC address) 715 * [8] charging status 716 * = 0 : AC offline / discharging 717 * = 1 : AC online / charging 718 * = 2 : AC online / fully charged 719 */ 720static int asus_parse_battery(struct asus_drvdata *drvdata, u8 *data, int size) 721{ 722 u8 sts; 723 u8 lvl; 724 int val; 725 726 lvl = data[1]; 727 sts = data[8]; 728 729 drvdata->battery_capacity = ((int)lvl * 100) / (int)BATTERY_LEVEL_MAX; 730 731 switch (sts) { 732 case BATTERY_STAT_CHARGING: 733 val = POWER_SUPPLY_STATUS_CHARGING; 734 break; 735 case BATTERY_STAT_FULL: 736 val = POWER_SUPPLY_STATUS_FULL; 737 break; 738 case BATTERY_STAT_DISCONNECT: 739 default: 740 val = POWER_SUPPLY_STATUS_DISCHARGING; 741 break; 742 } 743 drvdata->battery_stat = val; 744 745 return 0; 746} 747 748static int asus_report_battery(struct asus_drvdata *drvdata, u8 *data, int size) 749{ 750 /* notify only the autonomous event by device */ 751 if ((drvdata->battery_in_query == false) && 752 (size == BATTERY_REPORT_SIZE)) 753 power_supply_changed(drvdata->battery); 754 755 return 0; 756} 757 758static int asus_battery_query(struct asus_drvdata *drvdata) 759{ 760 u8 *buf; 761 int ret = 0; 762 763 buf = kmalloc(BATTERY_REPORT_SIZE, GFP_KERNEL); 764 if (!buf) 765 return -ENOMEM; 766 767 drvdata->battery_in_query = true; 768 ret = hid_hw_raw_request(drvdata->hdev, BATTERY_REPORT_ID, 769 buf, BATTERY_REPORT_SIZE, 770 HID_INPUT_REPORT, HID_REQ_GET_REPORT); 771 drvdata->battery_in_query = false; 772 if (ret == BATTERY_REPORT_SIZE) 773 ret = asus_parse_battery(drvdata, buf, BATTERY_REPORT_SIZE); 774 else 775 ret = -ENODATA; 776 777 kfree(buf); 778 779 return ret; 780} 781 782static enum power_supply_property asus_battery_props[] = { 783 POWER_SUPPLY_PROP_STATUS, 784 POWER_SUPPLY_PROP_PRESENT, 785 POWER_SUPPLY_PROP_CAPACITY, 786 POWER_SUPPLY_PROP_SCOPE, 787 POWER_SUPPLY_PROP_MODEL_NAME, 788}; 789 790#define QUERY_MIN_INTERVAL (60 * HZ) /* 60[sec] */ 791 792static int asus_battery_get_property(struct power_supply *psy, 793 enum power_supply_property psp, 794 union power_supply_propval *val) 795{ 796 struct asus_drvdata *drvdata = power_supply_get_drvdata(psy); 797 int ret = 0; 798 799 switch (psp) { 800 case POWER_SUPPLY_PROP_STATUS: 801 case POWER_SUPPLY_PROP_CAPACITY: 802 if (time_before(drvdata->battery_next_query, jiffies)) { 803 drvdata->battery_next_query = 804 jiffies + QUERY_MIN_INTERVAL; 805 ret = asus_battery_query(drvdata); 806 if (ret) 807 return ret; 808 } 809 if (psp == POWER_SUPPLY_PROP_STATUS) 810 val->intval = drvdata->battery_stat; 811 else 812 val->intval = drvdata->battery_capacity; 813 break; 814 case POWER_SUPPLY_PROP_PRESENT: 815 val->intval = 1; 816 break; 817 case POWER_SUPPLY_PROP_SCOPE: 818 val->intval = POWER_SUPPLY_SCOPE_DEVICE; 819 break; 820 case POWER_SUPPLY_PROP_MODEL_NAME: 821 val->strval = drvdata->hdev->name; 822 break; 823 default: 824 ret = -EINVAL; 825 break; 826 } 827 828 return ret; 829} 830 831static int asus_battery_probe(struct hid_device *hdev) 832{ 833 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 834 struct power_supply_config pscfg = { .drv_data = drvdata }; 835 int ret = 0; 836 837 drvdata->battery_capacity = 0; 838 drvdata->battery_stat = POWER_SUPPLY_STATUS_UNKNOWN; 839 drvdata->battery_in_query = false; 840 841 drvdata->battery_desc.properties = asus_battery_props; 842 drvdata->battery_desc.num_properties = ARRAY_SIZE(asus_battery_props); 843 drvdata->battery_desc.get_property = asus_battery_get_property; 844 drvdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY; 845 drvdata->battery_desc.use_for_apm = 0; 846 drvdata->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL, 847 "asus-keyboard-%s-battery", 848 strlen(hdev->uniq) ? 849 hdev->uniq : dev_name(&hdev->dev)); 850 if (!drvdata->battery_desc.name) 851 return -ENOMEM; 852 853 drvdata->battery_next_query = jiffies; 854 855 drvdata->battery = devm_power_supply_register(&hdev->dev, 856 &(drvdata->battery_desc), &pscfg); 857 if (IS_ERR(drvdata->battery)) { 858 ret = PTR_ERR(drvdata->battery); 859 drvdata->battery = NULL; 860 hid_err(hdev, "Unable to register battery device\n"); 861 return ret; 862 } 863 864 power_supply_powers(drvdata->battery, &hdev->dev); 865 866 return ret; 867} 868 869static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi) 870{ 871 struct input_dev *input = hi->input; 872 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 873 874 /* T100CHI uses MULTI_INPUT, bind the touchpad to the mouse hid_input */ 875 if (drvdata->quirks & QUIRK_T100CHI && 876 hi->report->id != T100CHI_MOUSE_REPORT_ID) 877 return 0; 878 879 /* Handle MULTI_INPUT on E1239T mouse/touchpad USB interface */ 880 if (drvdata->tp && (drvdata->quirks & QUIRK_MEDION_E1239T)) { 881 switch (hi->report->id) { 882 case E1239T_TP_TOGGLE_REPORT_ID: 883 input_set_capability(input, EV_KEY, KEY_F21); 884 input->name = "Asus Touchpad Keys"; 885 drvdata->tp_kbd_input = input; 886 return 0; 887 case INPUT_REPORT_ID: 888 break; /* Touchpad report, handled below */ 889 default: 890 return 0; /* Ignore other reports */ 891 } 892 } 893 894 if (drvdata->tp) { 895 int ret; 896 897 input_set_abs_params(input, ABS_MT_POSITION_X, 0, 898 drvdata->tp->max_x, 0, 0); 899 input_set_abs_params(input, ABS_MT_POSITION_Y, 0, 900 drvdata->tp->max_y, 0, 0); 901 input_abs_set_res(input, ABS_MT_POSITION_X, drvdata->tp->res_x); 902 input_abs_set_res(input, ABS_MT_POSITION_Y, drvdata->tp->res_y); 903 904 if (drvdata->tp->contact_size >= 5) { 905 input_set_abs_params(input, ABS_TOOL_WIDTH, 0, 906 MAX_TOUCH_MAJOR, 0, 0); 907 input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 908 MAX_TOUCH_MAJOR, 0, 0); 909 input_set_abs_params(input, ABS_MT_PRESSURE, 0, 910 MAX_PRESSURE, 0, 0); 911 } 912 913 __set_bit(BTN_LEFT, input->keybit); 914 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); 915 916 ret = input_mt_init_slots(input, drvdata->tp->max_contacts, 917 INPUT_MT_POINTER); 918 919 if (ret) { 920 hid_err(hdev, "Asus input mt init slots failed: %d\n", ret); 921 return ret; 922 } 923 } 924 925 drvdata->input = input; 926 927 if (drvdata->enable_backlight && 928 !asus_kbd_wmi_led_control_present(hdev) && 929 asus_kbd_register_leds(hdev)) 930 hid_warn(hdev, "Failed to initialize backlight.\n"); 931 932 return 0; 933} 934 935#define asus_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \ 936 max, EV_KEY, (c)) 937static int asus_input_mapping(struct hid_device *hdev, 938 struct hid_input *hi, struct hid_field *field, 939 struct hid_usage *usage, unsigned long **bit, 940 int *max) 941{ 942 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 943 944 if (drvdata->quirks & QUIRK_SKIP_INPUT_MAPPING) { 945 /* Don't map anything from the HID report. 946 * We do it all manually in asus_input_configured 947 */ 948 return -1; 949 } 950 951 /* 952 * Ignore a bunch of bogus collections in the T100CHI descriptor. 953 * This avoids a bunch of non-functional hid_input devices getting 954 * created because of the T100CHI using HID_QUIRK_MULTI_INPUT. 955 */ 956 if ((drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) && 957 (field->application == (HID_UP_GENDESK | 0x0080) || 958 field->application == HID_GD_MOUSE || 959 usage->hid == (HID_UP_GENDEVCTRLS | 0x0024) || 960 usage->hid == (HID_UP_GENDEVCTRLS | 0x0025) || 961 usage->hid == (HID_UP_GENDEVCTRLS | 0x0026))) 962 return -1; 963 964 /* ASUS-specific keyboard hotkeys and led backlight */ 965 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_ASUSVENDOR) { 966 switch (usage->hid & HID_USAGE) { 967 case 0x10: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break; 968 case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP); break; 969 case 0x35: asus_map_key_clear(KEY_DISPLAY_OFF); break; 970 case 0x6c: asus_map_key_clear(KEY_SLEEP); break; 971 case 0x7c: asus_map_key_clear(KEY_MICMUTE); break; 972 case 0x82: asus_map_key_clear(KEY_CAMERA); break; 973 case 0x88: asus_map_key_clear(KEY_RFKILL); break; 974 case 0xb5: asus_map_key_clear(KEY_CALC); break; 975 case 0xc4: asus_map_key_clear(KEY_KBDILLUMUP); break; 976 case 0xc5: asus_map_key_clear(KEY_KBDILLUMDOWN); break; 977 case 0xc7: asus_map_key_clear(KEY_KBDILLUMTOGGLE); break; 978 case 0x4e: asus_map_key_clear(KEY_FN_ESC); break; 979 case 0x7e: asus_map_key_clear(KEY_EMOJI_PICKER); break; 980 981 case 0x8b: asus_map_key_clear(KEY_PROG1); break; /* ProArt Creator Hub key */ 982 case 0x6b: asus_map_key_clear(KEY_F21); break; /* ASUS touchpad toggle */ 983 case 0x38: asus_map_key_clear(KEY_PROG1); break; /* ROG key */ 984 case 0xba: asus_map_key_clear(KEY_PROG2); break; /* Fn+C ASUS Splendid */ 985 case 0x5c: asus_map_key_clear(KEY_PROG3); break; /* Fn+Space Power4Gear */ 986 case 0x99: asus_map_key_clear(KEY_PROG4); break; /* Fn+F5 "fan" symbol */ 987 case 0xae: asus_map_key_clear(KEY_PROG4); break; /* Fn+F5 "fan" symbol */ 988 case 0x92: asus_map_key_clear(KEY_CALC); break; /* Fn+Ret "Calc" symbol */ 989 case 0xb2: asus_map_key_clear(KEY_PROG2); break; /* Fn+Left previous aura */ 990 case 0xb3: asus_map_key_clear(KEY_PROG3); break; /* Fn+Left next aura */ 991 case 0x6a: asus_map_key_clear(KEY_F13); break; /* Screenpad toggle */ 992 case 0x4b: asus_map_key_clear(KEY_F14); break; /* Arrows/Pg-Up/Dn toggle */ 993 case 0xa5: asus_map_key_clear(KEY_F15); break; /* ROG Ally left back */ 994 case 0xa6: asus_map_key_clear(KEY_F16); break; /* ROG Ally QAM button */ 995 case 0xa7: asus_map_key_clear(KEY_F17); break; /* ROG Ally ROG long-press */ 996 case 0xa8: asus_map_key_clear(KEY_F18); break; /* ROG Ally ROG long-press-release */ 997 998 default: 999 /* ASUS lazily declares 256 usages, ignore the rest, 1000 * as some make the keyboard appear as a pointer device. */ 1001 return -1; 1002 } 1003 1004 /* 1005 * Check and enable backlight only on devices with UsagePage == 1006 * 0xff31 to avoid initializing the keyboard firmware multiple 1007 * times on devices with multiple HID descriptors but same 1008 * PID/VID. 1009 */ 1010 if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT) 1011 drvdata->enable_backlight = true; 1012 1013 set_bit(EV_REP, hi->input->evbit); 1014 return 1; 1015 } 1016 1017 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) { 1018 switch (usage->hid & HID_USAGE) { 1019 case 0xff01: asus_map_key_clear(BTN_1); break; 1020 case 0xff02: asus_map_key_clear(BTN_2); break; 1021 case 0xff03: asus_map_key_clear(BTN_3); break; 1022 case 0xff04: asus_map_key_clear(BTN_4); break; 1023 case 0xff05: asus_map_key_clear(BTN_5); break; 1024 case 0xff06: asus_map_key_clear(BTN_6); break; 1025 case 0xff07: asus_map_key_clear(BTN_7); break; 1026 case 0xff08: asus_map_key_clear(BTN_8); break; 1027 case 0xff09: asus_map_key_clear(BTN_9); break; 1028 case 0xff0a: asus_map_key_clear(BTN_A); break; 1029 case 0xff0b: asus_map_key_clear(BTN_B); break; 1030 case 0x00f1: asus_map_key_clear(KEY_WLAN); break; 1031 case 0x00f2: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break; 1032 case 0x00f3: asus_map_key_clear(KEY_BRIGHTNESSUP); break; 1033 case 0x00f4: asus_map_key_clear(KEY_DISPLAY_OFF); break; 1034 case 0x00f7: asus_map_key_clear(KEY_CAMERA); break; 1035 case 0x00f8: asus_map_key_clear(KEY_PROG1); break; 1036 default: 1037 return 0; 1038 } 1039 1040 set_bit(EV_REP, hi->input->evbit); 1041 return 1; 1042 } 1043 1044 if (drvdata->quirks & QUIRK_NO_CONSUMER_USAGES && 1045 (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) { 1046 switch (usage->hid & HID_USAGE) { 1047 case 0xe2: /* Mute */ 1048 case 0xe9: /* Volume up */ 1049 case 0xea: /* Volume down */ 1050 return 0; 1051 default: 1052 /* Ignore dummy Consumer usages which make the 1053 * keyboard incorrectly appear as a pointer device. 1054 */ 1055 return -1; 1056 } 1057 } 1058 1059 /* 1060 * The mute button is broken and only sends press events, we 1061 * deal with this in our raw_event handler, so do not map it. 1062 */ 1063 if ((drvdata->quirks & QUIRK_MEDION_E1239T) && 1064 usage->hid == (HID_UP_CONSUMER | 0xe2)) { 1065 input_set_capability(hi->input, EV_KEY, KEY_MUTE); 1066 return -1; 1067 } 1068 1069 return 0; 1070} 1071 1072static int asus_start_multitouch(struct hid_device *hdev) 1073{ 1074 int ret; 1075 static const unsigned char buf[] = { 1076 FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00 1077 }; 1078 unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL); 1079 1080 if (!dmabuf) { 1081 ret = -ENOMEM; 1082 hid_err(hdev, "Asus failed to alloc dma buf: %d\n", ret); 1083 return ret; 1084 } 1085 1086 ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, sizeof(buf), 1087 HID_FEATURE_REPORT, HID_REQ_SET_REPORT); 1088 1089 kfree(dmabuf); 1090 1091 if (ret != sizeof(buf)) { 1092 hid_err(hdev, "Asus failed to start multitouch: %d\n", ret); 1093 return ret; 1094 } 1095 1096 return 0; 1097} 1098 1099static int __maybe_unused asus_resume(struct hid_device *hdev) { 1100 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 1101 int ret = 0; 1102 1103 if (drvdata->kbd_backlight) { 1104 const u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4, 1105 drvdata->kbd_backlight->cdev.brightness }; 1106 ret = asus_kbd_set_report(hdev, buf, sizeof(buf)); 1107 if (ret < 0) { 1108 hid_err(hdev, "Asus failed to set keyboard backlight: %d\n", ret); 1109 goto asus_resume_err; 1110 } 1111 } 1112 1113asus_resume_err: 1114 return ret; 1115} 1116 1117static int __maybe_unused asus_reset_resume(struct hid_device *hdev) 1118{ 1119 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 1120 1121 if (drvdata->tp) 1122 return asus_start_multitouch(hdev); 1123 1124 return 0; 1125} 1126 1127static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id) 1128{ 1129 int ret; 1130 struct asus_drvdata *drvdata; 1131 1132 drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL); 1133 if (drvdata == NULL) { 1134 hid_err(hdev, "Can't alloc Asus descriptor\n"); 1135 return -ENOMEM; 1136 } 1137 1138 hid_set_drvdata(hdev, drvdata); 1139 1140 drvdata->quirks = id->driver_data; 1141 1142 /* 1143 * T90CHI's keyboard dock returns same ID values as T100CHI's dock. 1144 * Thus, identify T90CHI dock with product name string. 1145 */ 1146 if (strstr(hdev->name, "T90CHI")) { 1147 drvdata->quirks &= ~QUIRK_T100CHI; 1148 drvdata->quirks |= QUIRK_T90CHI; 1149 } 1150 1151 if (drvdata->quirks & QUIRK_IS_MULTITOUCH) 1152 drvdata->tp = &asus_i2c_tp; 1153 1154 if ((drvdata->quirks & QUIRK_T100_KEYBOARD) && hid_is_usb(hdev)) { 1155 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 1156 1157 if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) { 1158 drvdata->quirks = QUIRK_SKIP_INPUT_MAPPING; 1159 /* 1160 * The T100HA uses the same USB-ids as the T100TAF and 1161 * the T200TA uses the same USB-ids as the T100TA, while 1162 * both have different max x/y values as the T100TA[F]. 1163 */ 1164 if (dmi_match(DMI_PRODUCT_NAME, "T100HAN")) 1165 drvdata->tp = &asus_t100ha_tp; 1166 else if (dmi_match(DMI_PRODUCT_NAME, "T200TA")) 1167 drvdata->tp = &asus_t200ta_tp; 1168 else 1169 drvdata->tp = &asus_t100ta_tp; 1170 } 1171 } 1172 1173 if (drvdata->quirks & QUIRK_T100CHI) { 1174 /* 1175 * All functionality is on a single HID interface and for 1176 * userspace the touchpad must be a separate input_dev. 1177 */ 1178 hdev->quirks |= HID_QUIRK_MULTI_INPUT; 1179 drvdata->tp = &asus_t100chi_tp; 1180 } 1181 1182 if ((drvdata->quirks & QUIRK_MEDION_E1239T) && hid_is_usb(hdev)) { 1183 struct usb_host_interface *alt = 1184 to_usb_interface(hdev->dev.parent)->altsetting; 1185 1186 if (alt->desc.bInterfaceNumber == MEDION_E1239T_TPAD_INTF) { 1187 /* For separate input-devs for tp and tp toggle key */ 1188 hdev->quirks |= HID_QUIRK_MULTI_INPUT; 1189 drvdata->quirks |= QUIRK_SKIP_INPUT_MAPPING; 1190 drvdata->tp = &medion_e1239t_tp; 1191 } 1192 } 1193 1194 if (drvdata->quirks & QUIRK_NO_INIT_REPORTS) 1195 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; 1196 1197 drvdata->hdev = hdev; 1198 1199 if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) { 1200 ret = asus_battery_probe(hdev); 1201 if (ret) { 1202 hid_err(hdev, 1203 "Asus hid battery_probe failed: %d\n", ret); 1204 return ret; 1205 } 1206 } 1207 1208 ret = hid_parse(hdev); 1209 if (ret) { 1210 hid_err(hdev, "Asus hid parse failed: %d\n", ret); 1211 return ret; 1212 } 1213 1214 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 1215 if (ret) { 1216 hid_err(hdev, "Asus hw start failed: %d\n", ret); 1217 return ret; 1218 } 1219 1220 /* 1221 * Check that input registration succeeded. Checking that 1222 * HID_CLAIMED_INPUT is set prevents a UAF when all input devices 1223 * were freed during registration due to no usages being mapped, 1224 * leaving drvdata->input pointing to freed memory. 1225 */ 1226 if (!drvdata->input || !(hdev->claimed & HID_CLAIMED_INPUT)) { 1227 hid_err(hdev, "Asus input not registered\n"); 1228 ret = -ENOMEM; 1229 goto err_stop_hw; 1230 } 1231 1232 if (drvdata->tp) { 1233 drvdata->input->name = "Asus TouchPad"; 1234 } else { 1235 drvdata->input->name = "Asus Keyboard"; 1236 } 1237 1238 if (drvdata->tp) { 1239 ret = asus_start_multitouch(hdev); 1240 if (ret) 1241 goto err_stop_hw; 1242 } 1243 1244 return 0; 1245err_stop_hw: 1246 hid_hw_stop(hdev); 1247 return ret; 1248} 1249 1250static void asus_remove(struct hid_device *hdev) 1251{ 1252 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 1253 unsigned long flags; 1254 1255 if (drvdata->kbd_backlight) { 1256 spin_lock_irqsave(&drvdata->kbd_backlight->lock, flags); 1257 drvdata->kbd_backlight->removed = true; 1258 spin_unlock_irqrestore(&drvdata->kbd_backlight->lock, flags); 1259 1260 cancel_work_sync(&drvdata->kbd_backlight->work); 1261 } 1262 1263 hid_hw_stop(hdev); 1264} 1265 1266static const __u8 asus_g752_fixed_rdesc[] = { 1267 0x19, 0x00, /* Usage Minimum (0x00) */ 1268 0x2A, 0xFF, 0x00, /* Usage Maximum (0xFF) */ 1269}; 1270 1271static const __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc, 1272 unsigned int *rsize) 1273{ 1274 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 1275 1276 if (drvdata->quirks & QUIRK_FIX_NOTEBOOK_REPORT && 1277 *rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x65) { 1278 hid_info(hdev, "Fixing up Asus notebook report descriptor\n"); 1279 rdesc[55] = 0xdd; 1280 } 1281 /* For the T100TA/T200TA keyboard dock */ 1282 if (drvdata->quirks & QUIRK_T100_KEYBOARD && 1283 (*rsize == 76 || *rsize == 101) && 1284 rdesc[73] == 0x81 && rdesc[74] == 0x01) { 1285 hid_info(hdev, "Fixing up Asus T100 keyb report descriptor\n"); 1286 rdesc[74] &= ~HID_MAIN_ITEM_CONSTANT; 1287 } 1288 /* For the T100CHI/T90CHI keyboard dock */ 1289 if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) { 1290 int rsize_orig; 1291 int offs; 1292 1293 if (drvdata->quirks & QUIRK_T100CHI) { 1294 rsize_orig = 403; 1295 offs = 388; 1296 } else { 1297 rsize_orig = 306; 1298 offs = 291; 1299 } 1300 1301 /* 1302 * Change Usage (76h) to Usage Minimum (00h), Usage Maximum 1303 * (FFh) and clear the flags in the Input() byte. 1304 * Note the descriptor has a bogus 0 byte at the end so we 1305 * only need 1 extra byte. 1306 */ 1307 if (*rsize == rsize_orig && 1308 rdesc[offs] == 0x09 && rdesc[offs + 1] == 0x76) { 1309 __u8 *new_rdesc; 1310 1311 new_rdesc = devm_kzalloc(&hdev->dev, rsize_orig + 1, 1312 GFP_KERNEL); 1313 if (!new_rdesc) 1314 return rdesc; 1315 1316 hid_info(hdev, "Fixing up %s keyb report descriptor\n", 1317 drvdata->quirks & QUIRK_T100CHI ? 1318 "T100CHI" : "T90CHI"); 1319 1320 memcpy(new_rdesc, rdesc, rsize_orig); 1321 *rsize = rsize_orig + 1; 1322 rdesc = new_rdesc; 1323 1324 memmove(rdesc + offs + 4, rdesc + offs + 2, 12); 1325 rdesc[offs] = 0x19; 1326 rdesc[offs + 1] = 0x00; 1327 rdesc[offs + 2] = 0x29; 1328 rdesc[offs + 3] = 0xff; 1329 rdesc[offs + 14] = 0x00; 1330 } 1331 } 1332 1333 if (drvdata->quirks & QUIRK_G752_KEYBOARD && 1334 *rsize == 75 && rdesc[61] == 0x15 && rdesc[62] == 0x00) { 1335 /* report is missing usage minimum and maximum */ 1336 __u8 *new_rdesc; 1337 size_t new_size = *rsize + sizeof(asus_g752_fixed_rdesc); 1338 1339 new_rdesc = devm_kzalloc(&hdev->dev, new_size, GFP_KERNEL); 1340 if (new_rdesc == NULL) 1341 return rdesc; 1342 1343 hid_info(hdev, "Fixing up Asus G752 keyb report descriptor\n"); 1344 /* copy the valid part */ 1345 memcpy(new_rdesc, rdesc, 61); 1346 /* insert missing part */ 1347 memcpy(new_rdesc + 61, asus_g752_fixed_rdesc, sizeof(asus_g752_fixed_rdesc)); 1348 /* copy remaining data */ 1349 memcpy(new_rdesc + 61 + sizeof(asus_g752_fixed_rdesc), rdesc + 61, *rsize - 61); 1350 1351 *rsize = new_size; 1352 rdesc = new_rdesc; 1353 } 1354 1355 if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD && 1356 *rsize == 331 && rdesc[190] == 0x85 && rdesc[191] == 0x5a && 1357 rdesc[204] == 0x95 && rdesc[205] == 0x05) { 1358 hid_info(hdev, "Fixing up Asus N-KEY keyb report descriptor\n"); 1359 rdesc[205] = 0x01; 1360 } 1361 1362 /* match many more n-key devices */ 1363 if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD && *rsize > 15) { 1364 for (int i = 0; i < *rsize - 15; i++) { 1365 /* offset to the count from 0x5a report part always 14 */ 1366 if (rdesc[i] == 0x85 && rdesc[i + 1] == 0x5a && 1367 rdesc[i + 14] == 0x95 && rdesc[i + 15] == 0x05) { 1368 hid_info(hdev, "Fixing up Asus N-Key report descriptor\n"); 1369 rdesc[i + 15] = 0x01; 1370 break; 1371 } 1372 } 1373 } 1374 1375 return rdesc; 1376} 1377 1378static const struct hid_device_id asus_devices[] = { 1379 { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, 1380 USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD), I2C_KEYBOARD_QUIRKS}, 1381 { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, 1382 USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), I2C_TOUCHPAD_QUIRKS }, 1383 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1384 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1), QUIRK_USE_KBD_BACKLIGHT }, 1385 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1386 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT }, 1387 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1388 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3), QUIRK_G752_KEYBOARD }, 1389 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1390 USB_DEVICE_ID_ASUSTEK_FX503VD_KEYBOARD), 1391 QUIRK_USE_KBD_BACKLIGHT }, 1392 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1393 USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD), 1394 QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD }, 1395 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1396 USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD2), 1397 QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD }, 1398 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1399 USB_DEVICE_ID_ASUSTEK_ROG_Z13_LIGHTBAR), 1400 QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD }, 1401 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1402 USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY), 1403 QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD | QUIRK_ROG_ALLY_XPAD}, 1404 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1405 USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY_X), 1406 QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD | QUIRK_ROG_ALLY_XPAD }, 1407 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1408 USB_DEVICE_ID_ASUSTEK_XGM_2023), 1409 }, 1410 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1411 USB_DEVICE_ID_ASUSTEK_ROG_CLAYMORE_II_KEYBOARD), 1412 QUIRK_ROG_CLAYMORE_II_KEYBOARD }, 1413 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1414 USB_DEVICE_ID_ASUSTEK_T100TA_KEYBOARD), 1415 QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES }, 1416 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 1417 USB_DEVICE_ID_ASUSTEK_T100TAF_KEYBOARD), 1418 QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES }, 1419 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) }, 1420 { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) }, 1421 { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) }, 1422 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK, 1423 USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), QUIRK_T100CHI }, 1424 { HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE_MEDION_E1239T), 1425 QUIRK_MEDION_E1239T }, 1426 /* 1427 * Note bind to the HID_GROUP_GENERIC group, so that we only bind to the keyboard 1428 * part, while letting hid-multitouch.c handle the touchpad. 1429 */ 1430 { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC, 1431 USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_ROG_Z13_FOLIO), 1432 QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD }, 1433 { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC, 1434 USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T101HA_KEYBOARD) }, 1435 { } 1436}; 1437MODULE_DEVICE_TABLE(hid, asus_devices); 1438 1439static struct hid_driver asus_driver = { 1440 .name = "asus", 1441 .id_table = asus_devices, 1442 .report_fixup = asus_report_fixup, 1443 .probe = asus_probe, 1444 .remove = asus_remove, 1445 .input_mapping = asus_input_mapping, 1446 .input_configured = asus_input_configured, 1447#ifdef CONFIG_PM 1448 .reset_resume = asus_reset_resume, 1449 .resume = asus_resume, 1450#endif 1451 .event = asus_event, 1452 .raw_event = asus_raw_event 1453}; 1454module_hid_driver(asus_driver); 1455 1456MODULE_IMPORT_NS("ASUS_WMI"); 1457MODULE_LICENSE("GPL");
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