1 /* 2 * HID driver for Asus notebook built-in keyboard. 3 * Fixes small logical maximum to match usage maximum. 4 * 5 * Currently supported devices are: 6 * EeeBook X205TA 7 * VivoBook E200HA 8 * 9 * Copyright (c) 2016 Yusuke Fujimaki <usk.fujimaki@gmail.com> 10 * 11 * This module based on hid-ortek by 12 * Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com> 13 * Copyright (c) 2011 Jiri Kosina 14 * 15 * This module has been updated to add support for Asus i2c touchpad. 16 * 17 * Copyright (c) 2016 Brendan McGrath <redmcg@redmandi.dyndns.org> 18 * Copyright (c) 2016 Victor Vlasenko <victor.vlasenko@sysgears.com> 19 * Copyright (c) 2016 Frederik Wenigwieser <frederik.wenigwieser@gmail.com> 20 */ 21 22 /* 23 * This program is free software; you can redistribute it and/or modify it 24 * under the terms of the GNU General Public License as published by the Free 25 * Software Foundation; either version 2 of the License, or (at your option) 26 * any later version. 27 */ 28 29 #include <linux/hid.h> 30 #include <linux/module.h> 31 #include <linux/input/mt.h> 32 #include <linux/usb.h> /* For to_usb_interface for T100 touchpad intf check */ 33 34 #include "hid-ids.h" 35 36 MODULE_AUTHOR("Yusuke Fujimaki <usk.fujimaki@gmail.com>"); 37 MODULE_AUTHOR("Brendan McGrath <redmcg@redmandi.dyndns.org>"); 38 MODULE_AUTHOR("Victor Vlasenko <victor.vlasenko@sysgears.com>"); 39 MODULE_AUTHOR("Frederik Wenigwieser <frederik.wenigwieser@gmail.com>"); 40 MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad"); 41 42 #define T100_TPAD_INTF 2 43 44 #define T100CHI_MOUSE_REPORT_ID 0x06 45 #define FEATURE_REPORT_ID 0x0d 46 #define INPUT_REPORT_ID 0x5d 47 #define FEATURE_KBD_REPORT_ID 0x5a 48 #define FEATURE_KBD_REPORT_SIZE 16 49 50 #define SUPPORT_KBD_BACKLIGHT BIT(0) 51 52 #define MAX_TOUCH_MAJOR 8 53 #define MAX_PRESSURE 128 54 55 #define BTN_LEFT_MASK 0x01 56 #define CONTACT_TOOL_TYPE_MASK 0x80 57 #define CONTACT_X_MSB_MASK 0xf0 58 #define CONTACT_Y_MSB_MASK 0x0f 59 #define CONTACT_TOUCH_MAJOR_MASK 0x07 60 #define CONTACT_PRESSURE_MASK 0x7f 61 62 #define QUIRK_FIX_NOTEBOOK_REPORT BIT(0) 63 #define QUIRK_NO_INIT_REPORTS BIT(1) 64 #define QUIRK_SKIP_INPUT_MAPPING BIT(2) 65 #define QUIRK_IS_MULTITOUCH BIT(3) 66 #define QUIRK_NO_CONSUMER_USAGES BIT(4) 67 #define QUIRK_USE_KBD_BACKLIGHT BIT(5) 68 #define QUIRK_T100_KEYBOARD BIT(6) 69 #define QUIRK_T100CHI BIT(7) 70 71 #define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \ 72 QUIRK_NO_INIT_REPORTS | \ 73 QUIRK_NO_CONSUMER_USAGES) 74 #define I2C_TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \ 75 QUIRK_SKIP_INPUT_MAPPING | \ 76 QUIRK_IS_MULTITOUCH) 77 78 #define TRKID_SGN ((TRKID_MAX + 1) >> 1) 79 80 struct asus_kbd_leds { 81 struct led_classdev cdev; 82 struct hid_device *hdev; 83 struct work_struct work; 84 unsigned int brightness; 85 bool removed; 86 }; 87 88 struct asus_touchpad_info { 89 int max_x; 90 int max_y; 91 int res_x; 92 int res_y; 93 int contact_size; 94 int max_contacts; 95 }; 96 97 struct asus_drvdata { 98 unsigned long quirks; 99 struct input_dev *input; 100 struct asus_kbd_leds *kbd_backlight; 101 const struct asus_touchpad_info *tp; 102 bool enable_backlight; 103 }; 104 105 static const struct asus_touchpad_info asus_i2c_tp = { 106 .max_x = 2794, 107 .max_y = 1758, 108 .contact_size = 5, 109 .max_contacts = 5, 110 }; 111 112 static const struct asus_touchpad_info asus_t100ta_tp = { 113 .max_x = 2240, 114 .max_y = 1120, 115 .res_x = 30, /* units/mm */ 116 .res_y = 27, /* units/mm */ 117 .contact_size = 5, 118 .max_contacts = 5, 119 }; 120 121 static const struct asus_touchpad_info asus_t100chi_tp = { 122 .max_x = 2640, 123 .max_y = 1320, 124 .res_x = 31, /* units/mm */ 125 .res_y = 29, /* units/mm */ 126 .contact_size = 3, 127 .max_contacts = 4, 128 }; 129 130 static void asus_report_contact_down(struct asus_drvdata *drvdat, 131 int toolType, u8 *data) 132 { 133 struct input_dev *input = drvdat->input; 134 int touch_major, pressure, x, y; 135 136 x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1]; 137 y = drvdat->tp->max_y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]); 138 139 input_report_abs(input, ABS_MT_POSITION_X, x); 140 input_report_abs(input, ABS_MT_POSITION_Y, y); 141 142 if (drvdat->tp->contact_size < 5) 143 return; 144 145 if (toolType == MT_TOOL_PALM) { 146 touch_major = MAX_TOUCH_MAJOR; 147 pressure = MAX_PRESSURE; 148 } else { 149 touch_major = (data[3] >> 4) & CONTACT_TOUCH_MAJOR_MASK; 150 pressure = data[4] & CONTACT_PRESSURE_MASK; 151 } 152 153 input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major); 154 input_report_abs(input, ABS_MT_PRESSURE, pressure); 155 } 156 157 /* Required for Synaptics Palm Detection */ 158 static void asus_report_tool_width(struct asus_drvdata *drvdat) 159 { 160 struct input_mt *mt = drvdat->input->mt; 161 struct input_mt_slot *oldest; 162 int oldid, count, i; 163 164 if (drvdat->tp->contact_size < 5) 165 return; 166 167 oldest = NULL; 168 oldid = mt->trkid; 169 count = 0; 170 171 for (i = 0; i < mt->num_slots; ++i) { 172 struct input_mt_slot *ps = &mt->slots[i]; 173 int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID); 174 175 if (id < 0) 176 continue; 177 if ((id - oldid) & TRKID_SGN) { 178 oldest = ps; 179 oldid = id; 180 } 181 count++; 182 } 183 184 if (oldest) { 185 input_report_abs(drvdat->input, ABS_TOOL_WIDTH, 186 input_mt_get_value(oldest, ABS_MT_TOUCH_MAJOR)); 187 } 188 } 189 190 static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size) 191 { 192 int i, toolType = MT_TOOL_FINGER; 193 u8 *contactData = data + 2; 194 195 if (size != 3 + drvdat->tp->contact_size * drvdat->tp->max_contacts) 196 return 0; 197 198 for (i = 0; i < drvdat->tp->max_contacts; i++) { 199 bool down = !!(data[1] & BIT(i+3)); 200 201 if (drvdat->tp->contact_size >= 5) 202 toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ? 203 MT_TOOL_PALM : MT_TOOL_FINGER; 204 205 input_mt_slot(drvdat->input, i); 206 input_mt_report_slot_state(drvdat->input, toolType, down); 207 208 if (down) { 209 asus_report_contact_down(drvdat, toolType, contactData); 210 contactData += drvdat->tp->contact_size; 211 } 212 } 213 214 input_report_key(drvdat->input, BTN_LEFT, data[1] & BTN_LEFT_MASK); 215 asus_report_tool_width(drvdat); 216 217 input_mt_sync_frame(drvdat->input); 218 input_sync(drvdat->input); 219 220 return 1; 221 } 222 223 static int asus_raw_event(struct hid_device *hdev, 224 struct hid_report *report, u8 *data, int size) 225 { 226 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 227 228 if (drvdata->tp && data[0] == INPUT_REPORT_ID) 229 return asus_report_input(drvdata, data, size); 230 231 return 0; 232 } 233 234 static int asus_kbd_set_report(struct hid_device *hdev, u8 *buf, size_t buf_size) 235 { 236 unsigned char *dmabuf; 237 int ret; 238 239 dmabuf = kmemdup(buf, buf_size, GFP_KERNEL); 240 if (!dmabuf) 241 return -ENOMEM; 242 243 ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, dmabuf, 244 buf_size, HID_FEATURE_REPORT, 245 HID_REQ_SET_REPORT); 246 kfree(dmabuf); 247 248 return ret; 249 } 250 251 static int asus_kbd_init(struct hid_device *hdev) 252 { 253 u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x41, 0x53, 0x55, 0x53, 0x20, 0x54, 254 0x65, 0x63, 0x68, 0x2e, 0x49, 0x6e, 0x63, 0x2e, 0x00 }; 255 int ret; 256 257 ret = asus_kbd_set_report(hdev, buf, sizeof(buf)); 258 if (ret < 0) 259 hid_err(hdev, "Asus failed to send init command: %d\n", ret); 260 261 return ret; 262 } 263 264 static int asus_kbd_get_functions(struct hid_device *hdev, 265 unsigned char *kbd_func) 266 { 267 u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x05, 0x20, 0x31, 0x00, 0x08 }; 268 u8 *readbuf; 269 int ret; 270 271 ret = asus_kbd_set_report(hdev, buf, sizeof(buf)); 272 if (ret < 0) { 273 hid_err(hdev, "Asus failed to send configuration command: %d\n", ret); 274 return ret; 275 } 276 277 readbuf = kzalloc(FEATURE_KBD_REPORT_SIZE, GFP_KERNEL); 278 if (!readbuf) 279 return -ENOMEM; 280 281 ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, readbuf, 282 FEATURE_KBD_REPORT_SIZE, HID_FEATURE_REPORT, 283 HID_REQ_GET_REPORT); 284 if (ret < 0) { 285 hid_err(hdev, "Asus failed to request functions: %d\n", ret); 286 kfree(readbuf); 287 return ret; 288 } 289 290 *kbd_func = readbuf[6]; 291 292 kfree(readbuf); 293 return ret; 294 } 295 296 static void asus_kbd_backlight_set(struct led_classdev *led_cdev, 297 enum led_brightness brightness) 298 { 299 struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds, 300 cdev); 301 if (led->brightness == brightness) 302 return; 303 304 led->brightness = brightness; 305 schedule_work(&led->work); 306 } 307 308 static enum led_brightness asus_kbd_backlight_get(struct led_classdev *led_cdev) 309 { 310 struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds, 311 cdev); 312 313 return led->brightness; 314 } 315 316 static void asus_kbd_backlight_work(struct work_struct *work) 317 { 318 struct asus_kbd_leds *led = container_of(work, struct asus_kbd_leds, work); 319 u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4, 0x00 }; 320 int ret; 321 322 if (led->removed) 323 return; 324 325 buf[4] = led->brightness; 326 327 ret = asus_kbd_set_report(led->hdev, buf, sizeof(buf)); 328 if (ret < 0) 329 hid_err(led->hdev, "Asus failed to set keyboard backlight: %d\n", ret); 330 } 331 332 static int asus_kbd_register_leds(struct hid_device *hdev) 333 { 334 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 335 unsigned char kbd_func; 336 int ret; 337 338 /* Initialize keyboard */ 339 ret = asus_kbd_init(hdev); 340 if (ret < 0) 341 return ret; 342 343 /* Get keyboard functions */ 344 ret = asus_kbd_get_functions(hdev, &kbd_func); 345 if (ret < 0) 346 return ret; 347 348 /* Check for backlight support */ 349 if (!(kbd_func & SUPPORT_KBD_BACKLIGHT)) 350 return -ENODEV; 351 352 drvdata->kbd_backlight = devm_kzalloc(&hdev->dev, 353 sizeof(struct asus_kbd_leds), 354 GFP_KERNEL); 355 if (!drvdata->kbd_backlight) 356 return -ENOMEM; 357 358 drvdata->kbd_backlight->removed = false; 359 drvdata->kbd_backlight->brightness = 0; 360 drvdata->kbd_backlight->hdev = hdev; 361 drvdata->kbd_backlight->cdev.name = "asus::kbd_backlight"; 362 drvdata->kbd_backlight->cdev.max_brightness = 3; 363 drvdata->kbd_backlight->cdev.brightness_set = asus_kbd_backlight_set; 364 drvdata->kbd_backlight->cdev.brightness_get = asus_kbd_backlight_get; 365 INIT_WORK(&drvdata->kbd_backlight->work, asus_kbd_backlight_work); 366 367 ret = devm_led_classdev_register(&hdev->dev, &drvdata->kbd_backlight->cdev); 368 if (ret < 0) { 369 /* No need to have this still around */ 370 devm_kfree(&hdev->dev, drvdata->kbd_backlight); 371 } 372 373 return ret; 374 } 375 376 static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi) 377 { 378 struct input_dev *input = hi->input; 379 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 380 381 /* T100CHI uses MULTI_INPUT, bind the touchpad to the mouse hid_input */ 382 if (drvdata->quirks & QUIRK_T100CHI && 383 hi->report->id != T100CHI_MOUSE_REPORT_ID) 384 return 0; 385 386 if (drvdata->tp) { 387 int ret; 388 389 input_set_abs_params(input, ABS_MT_POSITION_X, 0, 390 drvdata->tp->max_x, 0, 0); 391 input_set_abs_params(input, ABS_MT_POSITION_Y, 0, 392 drvdata->tp->max_y, 0, 0); 393 input_abs_set_res(input, ABS_MT_POSITION_X, drvdata->tp->res_x); 394 input_abs_set_res(input, ABS_MT_POSITION_Y, drvdata->tp->res_y); 395 396 if (drvdata->tp->contact_size >= 5) { 397 input_set_abs_params(input, ABS_TOOL_WIDTH, 0, 398 MAX_TOUCH_MAJOR, 0, 0); 399 input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 400 MAX_TOUCH_MAJOR, 0, 0); 401 input_set_abs_params(input, ABS_MT_PRESSURE, 0, 402 MAX_PRESSURE, 0, 0); 403 } 404 405 __set_bit(BTN_LEFT, input->keybit); 406 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); 407 408 ret = input_mt_init_slots(input, drvdata->tp->max_contacts, 409 INPUT_MT_POINTER); 410 411 if (ret) { 412 hid_err(hdev, "Asus input mt init slots failed: %d\n", ret); 413 return ret; 414 } 415 } 416 417 drvdata->input = input; 418 419 if (drvdata->enable_backlight && asus_kbd_register_leds(hdev)) 420 hid_warn(hdev, "Failed to initialize backlight.\n"); 421 422 return 0; 423 } 424 425 #define asus_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \ 426 max, EV_KEY, (c)) 427 static int asus_input_mapping(struct hid_device *hdev, 428 struct hid_input *hi, struct hid_field *field, 429 struct hid_usage *usage, unsigned long **bit, 430 int *max) 431 { 432 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 433 434 if (drvdata->quirks & QUIRK_SKIP_INPUT_MAPPING) { 435 /* Don't map anything from the HID report. 436 * We do it all manually in asus_input_configured 437 */ 438 return -1; 439 } 440 441 /* 442 * Ignore a bunch of bogus collections in the T100CHI descriptor. 443 * This avoids a bunch of non-functional hid_input devices getting 444 * created because of the T100CHI using HID_QUIRK_MULTI_INPUT. 445 */ 446 if (drvdata->quirks & QUIRK_T100CHI) { 447 if (field->application == (HID_UP_GENDESK | 0x0080) || 448 usage->hid == (HID_UP_GENDEVCTRLS | 0x0024) || 449 usage->hid == (HID_UP_GENDEVCTRLS | 0x0025) || 450 usage->hid == (HID_UP_GENDEVCTRLS | 0x0026)) 451 return -1; 452 /* 453 * We use the hid_input for the mouse report for the touchpad, 454 * keep the left button, to avoid the core removing it. 455 */ 456 if (field->application == HID_GD_MOUSE && 457 usage->hid != (HID_UP_BUTTON | 1)) 458 return -1; 459 } 460 461 /* ASUS-specific keyboard hotkeys */ 462 if ((usage->hid & HID_USAGE_PAGE) == 0xff310000) { 463 set_bit(EV_REP, hi->input->evbit); 464 switch (usage->hid & HID_USAGE) { 465 case 0x10: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break; 466 case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP); break; 467 case 0x35: asus_map_key_clear(KEY_DISPLAY_OFF); break; 468 case 0x6c: asus_map_key_clear(KEY_SLEEP); break; 469 case 0x82: asus_map_key_clear(KEY_CAMERA); break; 470 case 0x88: asus_map_key_clear(KEY_RFKILL); break; 471 case 0xb5: asus_map_key_clear(KEY_CALC); break; 472 case 0xc4: asus_map_key_clear(KEY_KBDILLUMUP); break; 473 case 0xc5: asus_map_key_clear(KEY_KBDILLUMDOWN); break; 474 475 /* ASUS touchpad toggle */ 476 case 0x6b: asus_map_key_clear(KEY_F21); break; 477 478 /* ROG key */ 479 case 0x38: asus_map_key_clear(KEY_PROG1); break; 480 481 /* Fn+C ASUS Splendid */ 482 case 0xba: asus_map_key_clear(KEY_PROG2); break; 483 484 /* Fn+Space Power4Gear Hybrid */ 485 case 0x5c: asus_map_key_clear(KEY_PROG3); break; 486 487 default: 488 /* ASUS lazily declares 256 usages, ignore the rest, 489 * as some make the keyboard appear as a pointer device. */ 490 return -1; 491 } 492 493 /* 494 * Check and enable backlight only on devices with UsagePage == 495 * 0xff31 to avoid initializing the keyboard firmware multiple 496 * times on devices with multiple HID descriptors but same 497 * PID/VID. 498 */ 499 if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT) 500 drvdata->enable_backlight = true; 501 502 return 1; 503 } 504 505 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) { 506 set_bit(EV_REP, hi->input->evbit); 507 switch (usage->hid & HID_USAGE) { 508 case 0xff01: asus_map_key_clear(BTN_1); break; 509 case 0xff02: asus_map_key_clear(BTN_2); break; 510 case 0xff03: asus_map_key_clear(BTN_3); break; 511 case 0xff04: asus_map_key_clear(BTN_4); break; 512 case 0xff05: asus_map_key_clear(BTN_5); break; 513 case 0xff06: asus_map_key_clear(BTN_6); break; 514 case 0xff07: asus_map_key_clear(BTN_7); break; 515 case 0xff08: asus_map_key_clear(BTN_8); break; 516 case 0xff09: asus_map_key_clear(BTN_9); break; 517 case 0xff0a: asus_map_key_clear(BTN_A); break; 518 case 0xff0b: asus_map_key_clear(BTN_B); break; 519 case 0x00f1: asus_map_key_clear(KEY_WLAN); break; 520 case 0x00f2: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break; 521 case 0x00f3: asus_map_key_clear(KEY_BRIGHTNESSUP); break; 522 case 0x00f4: asus_map_key_clear(KEY_DISPLAY_OFF); break; 523 case 0x00f7: asus_map_key_clear(KEY_CAMERA); break; 524 case 0x00f8: asus_map_key_clear(KEY_PROG1); break; 525 default: 526 return 0; 527 } 528 529 return 1; 530 } 531 532 if (drvdata->quirks & QUIRK_NO_CONSUMER_USAGES && 533 (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) { 534 switch (usage->hid & HID_USAGE) { 535 case 0xe2: /* Mute */ 536 case 0xe9: /* Volume up */ 537 case 0xea: /* Volume down */ 538 return 0; 539 default: 540 /* Ignore dummy Consumer usages which make the 541 * keyboard incorrectly appear as a pointer device. 542 */ 543 return -1; 544 } 545 } 546 547 return 0; 548 } 549 550 static int asus_start_multitouch(struct hid_device *hdev) 551 { 552 int ret; 553 const unsigned char buf[] = { FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00 }; 554 unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL); 555 556 if (!dmabuf) { 557 ret = -ENOMEM; 558 hid_err(hdev, "Asus failed to alloc dma buf: %d\n", ret); 559 return ret; 560 } 561 562 ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, sizeof(buf), 563 HID_FEATURE_REPORT, HID_REQ_SET_REPORT); 564 565 kfree(dmabuf); 566 567 if (ret != sizeof(buf)) { 568 hid_err(hdev, "Asus failed to start multitouch: %d\n", ret); 569 return ret; 570 } 571 572 return 0; 573 } 574 575 static int __maybe_unused asus_reset_resume(struct hid_device *hdev) 576 { 577 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 578 579 if (drvdata->tp) 580 return asus_start_multitouch(hdev); 581 582 return 0; 583 } 584 585 static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id) 586 { 587 int ret; 588 struct asus_drvdata *drvdata; 589 590 drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL); 591 if (drvdata == NULL) { 592 hid_err(hdev, "Can't alloc Asus descriptor\n"); 593 return -ENOMEM; 594 } 595 596 hid_set_drvdata(hdev, drvdata); 597 598 drvdata->quirks = id->driver_data; 599 600 if (drvdata->quirks & QUIRK_IS_MULTITOUCH) 601 drvdata->tp = &asus_i2c_tp; 602 603 if (drvdata->quirks & QUIRK_T100_KEYBOARD) { 604 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 605 606 if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) { 607 drvdata->quirks = QUIRK_SKIP_INPUT_MAPPING; 608 drvdata->tp = &asus_t100ta_tp; 609 } 610 } 611 612 if (drvdata->quirks & QUIRK_T100CHI) { 613 /* 614 * All functionality is on a single HID interface and for 615 * userspace the touchpad must be a separate input_dev. 616 */ 617 hdev->quirks |= HID_QUIRK_MULTI_INPUT | 618 HID_QUIRK_NO_EMPTY_INPUT; 619 drvdata->tp = &asus_t100chi_tp; 620 } 621 622 if (drvdata->quirks & QUIRK_NO_INIT_REPORTS) 623 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; 624 625 ret = hid_parse(hdev); 626 if (ret) { 627 hid_err(hdev, "Asus hid parse failed: %d\n", ret); 628 return ret; 629 } 630 631 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 632 if (ret) { 633 hid_err(hdev, "Asus hw start failed: %d\n", ret); 634 return ret; 635 } 636 637 if (!drvdata->input) { 638 hid_err(hdev, "Asus input not registered\n"); 639 ret = -ENOMEM; 640 goto err_stop_hw; 641 } 642 643 if (drvdata->tp) { 644 drvdata->input->name = "Asus TouchPad"; 645 } else { 646 drvdata->input->name = "Asus Keyboard"; 647 } 648 649 if (drvdata->tp) { 650 ret = asus_start_multitouch(hdev); 651 if (ret) 652 goto err_stop_hw; 653 } 654 655 return 0; 656 err_stop_hw: 657 hid_hw_stop(hdev); 658 return ret; 659 } 660 661 static void asus_remove(struct hid_device *hdev) 662 { 663 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 664 665 if (drvdata->kbd_backlight) { 666 drvdata->kbd_backlight->removed = true; 667 cancel_work_sync(&drvdata->kbd_backlight->work); 668 } 669 670 hid_hw_stop(hdev); 671 } 672 673 static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc, 674 unsigned int *rsize) 675 { 676 struct asus_drvdata *drvdata = hid_get_drvdata(hdev); 677 678 if (drvdata->quirks & QUIRK_FIX_NOTEBOOK_REPORT && 679 *rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x65) { 680 hid_info(hdev, "Fixing up Asus notebook report descriptor\n"); 681 rdesc[55] = 0xdd; 682 } 683 /* For the T100TA keyboard dock */ 684 if (drvdata->quirks & QUIRK_T100_KEYBOARD && 685 *rsize == 76 && rdesc[73] == 0x81 && rdesc[74] == 0x01) { 686 hid_info(hdev, "Fixing up Asus T100 keyb report descriptor\n"); 687 rdesc[74] &= ~HID_MAIN_ITEM_CONSTANT; 688 } 689 /* For the T100CHI keyboard dock */ 690 if (drvdata->quirks & QUIRK_T100CHI && 691 *rsize == 403 && rdesc[388] == 0x09 && rdesc[389] == 0x76) { 692 /* 693 * Change Usage (76h) to Usage Minimum (00h), Usage Maximum 694 * (FFh) and clear the flags in the Input() byte. 695 * Note the descriptor has a bogus 0 byte at the end so we 696 * only need 1 extra byte. 697 */ 698 *rsize = 404; 699 rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL); 700 if (!rdesc) 701 return NULL; 702 703 hid_info(hdev, "Fixing up T100CHI keyb report descriptor\n"); 704 memmove(rdesc + 392, rdesc + 390, 12); 705 rdesc[388] = 0x19; 706 rdesc[389] = 0x00; 707 rdesc[390] = 0x29; 708 rdesc[391] = 0xff; 709 rdesc[402] = 0x00; 710 } 711 712 return rdesc; 713 } 714 715 static const struct hid_device_id asus_devices[] = { 716 { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, 717 USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD), I2C_KEYBOARD_QUIRKS}, 718 { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, 719 USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), I2C_TOUCHPAD_QUIRKS }, 720 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 721 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1) }, 722 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 723 USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT }, 724 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, 725 USB_DEVICE_ID_ASUSTEK_T100_KEYBOARD), 726 QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES }, 727 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) }, 728 { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) }, 729 { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) }, 730 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK, 731 USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), QUIRK_T100CHI }, 732 733 { } 734 }; 735 MODULE_DEVICE_TABLE(hid, asus_devices); 736 737 static struct hid_driver asus_driver = { 738 .name = "asus", 739 .id_table = asus_devices, 740 .report_fixup = asus_report_fixup, 741 .probe = asus_probe, 742 .remove = asus_remove, 743 .input_mapping = asus_input_mapping, 744 .input_configured = asus_input_configured, 745 #ifdef CONFIG_PM 746 .reset_resume = asus_reset_resume, 747 #endif 748 .raw_event = asus_raw_event 749 }; 750 module_hid_driver(asus_driver); 751 752 MODULE_LICENSE("GPL"); 753