rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * HID driver for Lenovo: |
| 3 | * - ThinkPad USB Keyboard with TrackPoint (tpkbd) |
| 4 | * - ThinkPad Compact Bluetooth Keyboard with TrackPoint (cptkbd) |
| 5 | * - ThinkPad Compact USB Keyboard with TrackPoint (cptkbd) |
| 6 | * |
| 7 | * Copyright (c) 2012 Bernhard Seibold |
| 8 | * Copyright (c) 2014 Jamie Lentin <jm@lentin.co.uk> |
| 9 | * |
| 10 | * Linux IBM/Lenovo Scrollpoint mouse driver: |
| 11 | * - IBM Scrollpoint III |
| 12 | * - IBM Scrollpoint Pro |
| 13 | * - IBM Scrollpoint Optical |
| 14 | * - IBM Scrollpoint Optical 800dpi |
| 15 | * - IBM Scrollpoint Optical 800dpi Pro |
| 16 | * - Lenovo Scrollpoint Optical |
| 17 | * |
| 18 | * Copyright (c) 2012 Peter De Wachter <pdewacht@gmail.com> |
| 19 | * Copyright (c) 2018 Peter Ganzhorn <peter.ganzhorn@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/module.h> |
| 30 | #include <linux/sysfs.h> |
| 31 | #include <linux/device.h> |
| 32 | #include <linux/hid.h> |
| 33 | #include <linux/input.h> |
| 34 | #include <linux/leds.h> |
| 35 | |
| 36 | #include "hid-ids.h" |
| 37 | |
| 38 | struct lenovo_drvdata_tpkbd { |
| 39 | int led_state; |
| 40 | struct led_classdev led_mute; |
| 41 | struct led_classdev led_micmute; |
| 42 | int press_to_select; |
| 43 | int dragging; |
| 44 | int release_to_select; |
| 45 | int select_right; |
| 46 | int sensitivity; |
| 47 | int press_speed; |
| 48 | }; |
| 49 | |
| 50 | struct lenovo_drvdata_cptkbd { |
| 51 | u8 middlebutton_state; /* 0:Up, 1:Down (undecided), 2:Scrolling */ |
| 52 | bool fn_lock; |
| 53 | int sensitivity; |
| 54 | }; |
| 55 | |
| 56 | #define map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c)) |
| 57 | |
| 58 | static const __u8 lenovo_pro_dock_need_fixup_collection[] = { |
| 59 | 0x05, 0x88, /* Usage Page (Vendor Usage Page 0x88) */ |
| 60 | 0x09, 0x01, /* Usage (Vendor Usage 0x01) */ |
| 61 | 0xa1, 0x01, /* Collection (Application) */ |
| 62 | 0x85, 0x04, /* Report ID (4) */ |
| 63 | 0x19, 0x00, /* Usage Minimum (0) */ |
| 64 | 0x2a, 0xff, 0xff, /* Usage Maximum (65535) */ |
| 65 | }; |
| 66 | |
| 67 | static __u8 *lenovo_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
| 68 | unsigned int *rsize) |
| 69 | { |
| 70 | switch (hdev->product) { |
| 71 | case USB_DEVICE_ID_LENOVO_TPPRODOCK: |
| 72 | /* the fixups that need to be done: |
| 73 | * - get a reasonable usage max for the vendor collection |
| 74 | * 0x8801 from the report ID 4 |
| 75 | */ |
| 76 | if (*rsize >= 153 && |
| 77 | memcmp(&rdesc[140], lenovo_pro_dock_need_fixup_collection, |
| 78 | sizeof(lenovo_pro_dock_need_fixup_collection)) == 0) { |
| 79 | rdesc[151] = 0x01; |
| 80 | rdesc[152] = 0x00; |
| 81 | } |
| 82 | break; |
| 83 | } |
| 84 | return rdesc; |
| 85 | } |
| 86 | |
| 87 | static int lenovo_input_mapping_tpkbd(struct hid_device *hdev, |
| 88 | struct hid_input *hi, struct hid_field *field, |
| 89 | struct hid_usage *usage, unsigned long **bit, int *max) |
| 90 | { |
| 91 | if (usage->hid == (HID_UP_BUTTON | 0x0010)) { |
| 92 | /* This sub-device contains trackpoint, mark it */ |
| 93 | hid_set_drvdata(hdev, (void *)1); |
| 94 | map_key_clear(KEY_MICMUTE); |
| 95 | return 1; |
| 96 | } |
| 97 | return 0; |
| 98 | } |
| 99 | |
| 100 | static int lenovo_input_mapping_cptkbd(struct hid_device *hdev, |
| 101 | struct hid_input *hi, struct hid_field *field, |
| 102 | struct hid_usage *usage, unsigned long **bit, int *max) |
| 103 | { |
| 104 | /* HID_UP_LNVENDOR = USB, HID_UP_MSVENDOR = BT */ |
| 105 | if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR || |
| 106 | (usage->hid & HID_USAGE_PAGE) == HID_UP_LNVENDOR) { |
| 107 | switch (usage->hid & HID_USAGE) { |
| 108 | case 0x00f1: /* Fn-F4: Mic mute */ |
| 109 | map_key_clear(KEY_MICMUTE); |
| 110 | return 1; |
| 111 | case 0x00f2: /* Fn-F5: Brightness down */ |
| 112 | map_key_clear(KEY_BRIGHTNESSDOWN); |
| 113 | return 1; |
| 114 | case 0x00f3: /* Fn-F6: Brightness up */ |
| 115 | map_key_clear(KEY_BRIGHTNESSUP); |
| 116 | return 1; |
| 117 | case 0x00f4: /* Fn-F7: External display (projector) */ |
| 118 | map_key_clear(KEY_SWITCHVIDEOMODE); |
| 119 | return 1; |
| 120 | case 0x00f5: /* Fn-F8: Wireless */ |
| 121 | map_key_clear(KEY_WLAN); |
| 122 | return 1; |
| 123 | case 0x00f6: /* Fn-F9: Control panel */ |
| 124 | map_key_clear(KEY_CONFIG); |
| 125 | return 1; |
| 126 | case 0x00f8: /* Fn-F11: View open applications (3 boxes) */ |
| 127 | map_key_clear(KEY_SCALE); |
| 128 | return 1; |
| 129 | case 0x00f9: /* Fn-F12: Open My computer (6 boxes) USB-only */ |
| 130 | /* NB: This mapping is invented in raw_event below */ |
| 131 | map_key_clear(KEY_FILE); |
| 132 | return 1; |
| 133 | case 0x00fa: /* Fn-Esc: Fn-lock toggle */ |
| 134 | map_key_clear(KEY_FN_ESC); |
| 135 | return 1; |
| 136 | case 0x00fb: /* Middle mouse button (in native mode) */ |
| 137 | map_key_clear(BTN_MIDDLE); |
| 138 | return 1; |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | /* Compatibility middle/wheel mappings should be ignored */ |
| 143 | if (usage->hid == HID_GD_WHEEL) |
| 144 | return -1; |
| 145 | if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON && |
| 146 | (usage->hid & HID_USAGE) == 0x003) |
| 147 | return -1; |
| 148 | if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER && |
| 149 | (usage->hid & HID_USAGE) == 0x238) |
| 150 | return -1; |
| 151 | |
| 152 | /* Map wheel emulation reports: 0xffa1 = USB, 0xff10 = BT */ |
| 153 | if ((usage->hid & HID_USAGE_PAGE) == 0xff100000 || |
| 154 | (usage->hid & HID_USAGE_PAGE) == 0xffa10000) { |
| 155 | field->flags |= HID_MAIN_ITEM_RELATIVE | HID_MAIN_ITEM_VARIABLE; |
| 156 | field->logical_minimum = -127; |
| 157 | field->logical_maximum = 127; |
| 158 | |
| 159 | switch (usage->hid & HID_USAGE) { |
| 160 | case 0x0000: |
| 161 | hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL); |
| 162 | return 1; |
| 163 | case 0x0001: |
| 164 | hid_map_usage(hi, usage, bit, max, EV_REL, REL_WHEEL); |
| 165 | return 1; |
| 166 | default: |
| 167 | return -1; |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | return 0; |
| 172 | } |
| 173 | |
| 174 | static int lenovo_input_mapping_scrollpoint(struct hid_device *hdev, |
| 175 | struct hid_input *hi, struct hid_field *field, |
| 176 | struct hid_usage *usage, unsigned long **bit, int *max) |
| 177 | { |
| 178 | if (usage->hid == HID_GD_Z) { |
| 179 | hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL); |
| 180 | return 1; |
| 181 | } |
| 182 | return 0; |
| 183 | } |
| 184 | |
| 185 | static int lenovo_input_mapping(struct hid_device *hdev, |
| 186 | struct hid_input *hi, struct hid_field *field, |
| 187 | struct hid_usage *usage, unsigned long **bit, int *max) |
| 188 | { |
| 189 | switch (hdev->product) { |
| 190 | case USB_DEVICE_ID_LENOVO_TPKBD: |
| 191 | return lenovo_input_mapping_tpkbd(hdev, hi, field, |
| 192 | usage, bit, max); |
| 193 | case USB_DEVICE_ID_LENOVO_CUSBKBD: |
| 194 | case USB_DEVICE_ID_LENOVO_CBTKBD: |
| 195 | return lenovo_input_mapping_cptkbd(hdev, hi, field, |
| 196 | usage, bit, max); |
| 197 | case USB_DEVICE_ID_IBM_SCROLLPOINT_III: |
| 198 | case USB_DEVICE_ID_IBM_SCROLLPOINT_PRO: |
| 199 | case USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL: |
| 200 | case USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL: |
| 201 | case USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO: |
| 202 | case USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL: |
| 203 | return lenovo_input_mapping_scrollpoint(hdev, hi, field, |
| 204 | usage, bit, max); |
| 205 | default: |
| 206 | return 0; |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | #undef map_key_clear |
| 211 | |
| 212 | /* Send a config command to the keyboard */ |
| 213 | static int lenovo_send_cmd_cptkbd(struct hid_device *hdev, |
| 214 | unsigned char byte2, unsigned char byte3) |
| 215 | { |
| 216 | int ret; |
| 217 | unsigned char *buf; |
| 218 | |
| 219 | buf = kzalloc(3, GFP_KERNEL); |
| 220 | if (!buf) |
| 221 | return -ENOMEM; |
| 222 | |
| 223 | buf[0] = 0x18; |
| 224 | buf[1] = byte2; |
| 225 | buf[2] = byte3; |
| 226 | |
| 227 | switch (hdev->product) { |
| 228 | case USB_DEVICE_ID_LENOVO_CUSBKBD: |
| 229 | ret = hid_hw_raw_request(hdev, 0x13, buf, 3, |
| 230 | HID_FEATURE_REPORT, HID_REQ_SET_REPORT); |
| 231 | break; |
| 232 | case USB_DEVICE_ID_LENOVO_CBTKBD: |
| 233 | ret = hid_hw_output_report(hdev, buf, 3); |
| 234 | break; |
| 235 | default: |
| 236 | ret = -EINVAL; |
| 237 | break; |
| 238 | } |
| 239 | |
| 240 | kfree(buf); |
| 241 | |
| 242 | return ret < 0 ? ret : 0; /* BT returns 0, USB returns sizeof(buf) */ |
| 243 | } |
| 244 | |
| 245 | static void lenovo_features_set_cptkbd(struct hid_device *hdev) |
| 246 | { |
| 247 | int ret; |
| 248 | struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev); |
| 249 | |
| 250 | ret = lenovo_send_cmd_cptkbd(hdev, 0x05, cptkbd_data->fn_lock); |
| 251 | if (ret) |
| 252 | hid_err(hdev, "Fn-lock setting failed: %d\n", ret); |
| 253 | |
| 254 | ret = lenovo_send_cmd_cptkbd(hdev, 0x02, cptkbd_data->sensitivity); |
| 255 | if (ret) |
| 256 | hid_err(hdev, "Sensitivity setting failed: %d\n", ret); |
| 257 | } |
| 258 | |
| 259 | static ssize_t attr_fn_lock_show_cptkbd(struct device *dev, |
| 260 | struct device_attribute *attr, |
| 261 | char *buf) |
| 262 | { |
| 263 | struct hid_device *hdev = to_hid_device(dev); |
| 264 | struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev); |
| 265 | |
| 266 | return snprintf(buf, PAGE_SIZE, "%u\n", cptkbd_data->fn_lock); |
| 267 | } |
| 268 | |
| 269 | static ssize_t attr_fn_lock_store_cptkbd(struct device *dev, |
| 270 | struct device_attribute *attr, |
| 271 | const char *buf, |
| 272 | size_t count) |
| 273 | { |
| 274 | struct hid_device *hdev = to_hid_device(dev); |
| 275 | struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev); |
| 276 | int value; |
| 277 | |
| 278 | if (kstrtoint(buf, 10, &value)) |
| 279 | return -EINVAL; |
| 280 | if (value < 0 || value > 1) |
| 281 | return -EINVAL; |
| 282 | |
| 283 | cptkbd_data->fn_lock = !!value; |
| 284 | lenovo_features_set_cptkbd(hdev); |
| 285 | |
| 286 | return count; |
| 287 | } |
| 288 | |
| 289 | static ssize_t attr_sensitivity_show_cptkbd(struct device *dev, |
| 290 | struct device_attribute *attr, |
| 291 | char *buf) |
| 292 | { |
| 293 | struct hid_device *hdev = to_hid_device(dev); |
| 294 | struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev); |
| 295 | |
| 296 | return snprintf(buf, PAGE_SIZE, "%u\n", |
| 297 | cptkbd_data->sensitivity); |
| 298 | } |
| 299 | |
| 300 | static ssize_t attr_sensitivity_store_cptkbd(struct device *dev, |
| 301 | struct device_attribute *attr, |
| 302 | const char *buf, |
| 303 | size_t count) |
| 304 | { |
| 305 | struct hid_device *hdev = to_hid_device(dev); |
| 306 | struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev); |
| 307 | int value; |
| 308 | |
| 309 | if (kstrtoint(buf, 10, &value) || value < 1 || value > 255) |
| 310 | return -EINVAL; |
| 311 | |
| 312 | cptkbd_data->sensitivity = value; |
| 313 | lenovo_features_set_cptkbd(hdev); |
| 314 | |
| 315 | return count; |
| 316 | } |
| 317 | |
| 318 | |
| 319 | static struct device_attribute dev_attr_fn_lock_cptkbd = |
| 320 | __ATTR(fn_lock, S_IWUSR | S_IRUGO, |
| 321 | attr_fn_lock_show_cptkbd, |
| 322 | attr_fn_lock_store_cptkbd); |
| 323 | |
| 324 | static struct device_attribute dev_attr_sensitivity_cptkbd = |
| 325 | __ATTR(sensitivity, S_IWUSR | S_IRUGO, |
| 326 | attr_sensitivity_show_cptkbd, |
| 327 | attr_sensitivity_store_cptkbd); |
| 328 | |
| 329 | |
| 330 | static struct attribute *lenovo_attributes_cptkbd[] = { |
| 331 | &dev_attr_fn_lock_cptkbd.attr, |
| 332 | &dev_attr_sensitivity_cptkbd.attr, |
| 333 | NULL |
| 334 | }; |
| 335 | |
| 336 | static const struct attribute_group lenovo_attr_group_cptkbd = { |
| 337 | .attrs = lenovo_attributes_cptkbd, |
| 338 | }; |
| 339 | |
| 340 | static int lenovo_raw_event(struct hid_device *hdev, |
| 341 | struct hid_report *report, u8 *data, int size) |
| 342 | { |
| 343 | /* |
| 344 | * Compact USB keyboard's Fn-F12 report holds down many other keys, and |
| 345 | * its own key is outside the usage page range. Remove extra |
| 346 | * keypresses and remap to inside usage page. |
| 347 | */ |
| 348 | if (unlikely(hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD |
| 349 | && size == 3 |
| 350 | && data[0] == 0x15 |
| 351 | && data[1] == 0x94 |
| 352 | && data[2] == 0x01)) { |
| 353 | data[1] = 0x00; |
| 354 | data[2] = 0x01; |
| 355 | } |
| 356 | |
| 357 | return 0; |
| 358 | } |
| 359 | |
| 360 | static int lenovo_event_cptkbd(struct hid_device *hdev, |
| 361 | struct hid_field *field, struct hid_usage *usage, __s32 value) |
| 362 | { |
| 363 | struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev); |
| 364 | |
| 365 | /* "wheel" scroll events */ |
| 366 | if (usage->type == EV_REL && (usage->code == REL_WHEEL || |
| 367 | usage->code == REL_HWHEEL)) { |
| 368 | /* Scroll events disable middle-click event */ |
| 369 | cptkbd_data->middlebutton_state = 2; |
| 370 | return 0; |
| 371 | } |
| 372 | |
| 373 | /* Middle click events */ |
| 374 | if (usage->type == EV_KEY && usage->code == BTN_MIDDLE) { |
| 375 | if (value == 1) { |
| 376 | cptkbd_data->middlebutton_state = 1; |
| 377 | } else if (value == 0) { |
| 378 | if (cptkbd_data->middlebutton_state == 1) { |
| 379 | /* No scrolling inbetween, send middle-click */ |
| 380 | input_event(field->hidinput->input, |
| 381 | EV_KEY, BTN_MIDDLE, 1); |
| 382 | input_sync(field->hidinput->input); |
| 383 | input_event(field->hidinput->input, |
| 384 | EV_KEY, BTN_MIDDLE, 0); |
| 385 | input_sync(field->hidinput->input); |
| 386 | } |
| 387 | cptkbd_data->middlebutton_state = 0; |
| 388 | } |
| 389 | return 1; |
| 390 | } |
| 391 | |
| 392 | return 0; |
| 393 | } |
| 394 | |
| 395 | static int lenovo_event(struct hid_device *hdev, struct hid_field *field, |
| 396 | struct hid_usage *usage, __s32 value) |
| 397 | { |
| 398 | switch (hdev->product) { |
| 399 | case USB_DEVICE_ID_LENOVO_CUSBKBD: |
| 400 | case USB_DEVICE_ID_LENOVO_CBTKBD: |
| 401 | return lenovo_event_cptkbd(hdev, field, usage, value); |
| 402 | default: |
| 403 | return 0; |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | static int lenovo_features_set_tpkbd(struct hid_device *hdev) |
| 408 | { |
| 409 | struct hid_report *report; |
| 410 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 411 | |
| 412 | report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[4]; |
| 413 | |
| 414 | report->field[0]->value[0] = data_pointer->press_to_select ? 0x01 : 0x02; |
| 415 | report->field[0]->value[0] |= data_pointer->dragging ? 0x04 : 0x08; |
| 416 | report->field[0]->value[0] |= data_pointer->release_to_select ? 0x10 : 0x20; |
| 417 | report->field[0]->value[0] |= data_pointer->select_right ? 0x80 : 0x40; |
| 418 | report->field[1]->value[0] = 0x03; // unknown setting, imitate windows driver |
| 419 | report->field[2]->value[0] = data_pointer->sensitivity; |
| 420 | report->field[3]->value[0] = data_pointer->press_speed; |
| 421 | |
| 422 | hid_hw_request(hdev, report, HID_REQ_SET_REPORT); |
| 423 | return 0; |
| 424 | } |
| 425 | |
| 426 | static ssize_t attr_press_to_select_show_tpkbd(struct device *dev, |
| 427 | struct device_attribute *attr, |
| 428 | char *buf) |
| 429 | { |
| 430 | struct hid_device *hdev = to_hid_device(dev); |
| 431 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 432 | |
| 433 | return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->press_to_select); |
| 434 | } |
| 435 | |
| 436 | static ssize_t attr_press_to_select_store_tpkbd(struct device *dev, |
| 437 | struct device_attribute *attr, |
| 438 | const char *buf, |
| 439 | size_t count) |
| 440 | { |
| 441 | struct hid_device *hdev = to_hid_device(dev); |
| 442 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 443 | int value; |
| 444 | |
| 445 | if (kstrtoint(buf, 10, &value)) |
| 446 | return -EINVAL; |
| 447 | if (value < 0 || value > 1) |
| 448 | return -EINVAL; |
| 449 | |
| 450 | data_pointer->press_to_select = value; |
| 451 | lenovo_features_set_tpkbd(hdev); |
| 452 | |
| 453 | return count; |
| 454 | } |
| 455 | |
| 456 | static ssize_t attr_dragging_show_tpkbd(struct device *dev, |
| 457 | struct device_attribute *attr, |
| 458 | char *buf) |
| 459 | { |
| 460 | struct hid_device *hdev = to_hid_device(dev); |
| 461 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 462 | |
| 463 | return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->dragging); |
| 464 | } |
| 465 | |
| 466 | static ssize_t attr_dragging_store_tpkbd(struct device *dev, |
| 467 | struct device_attribute *attr, |
| 468 | const char *buf, |
| 469 | size_t count) |
| 470 | { |
| 471 | struct hid_device *hdev = to_hid_device(dev); |
| 472 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 473 | int value; |
| 474 | |
| 475 | if (kstrtoint(buf, 10, &value)) |
| 476 | return -EINVAL; |
| 477 | if (value < 0 || value > 1) |
| 478 | return -EINVAL; |
| 479 | |
| 480 | data_pointer->dragging = value; |
| 481 | lenovo_features_set_tpkbd(hdev); |
| 482 | |
| 483 | return count; |
| 484 | } |
| 485 | |
| 486 | static ssize_t attr_release_to_select_show_tpkbd(struct device *dev, |
| 487 | struct device_attribute *attr, |
| 488 | char *buf) |
| 489 | { |
| 490 | struct hid_device *hdev = to_hid_device(dev); |
| 491 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 492 | |
| 493 | return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->release_to_select); |
| 494 | } |
| 495 | |
| 496 | static ssize_t attr_release_to_select_store_tpkbd(struct device *dev, |
| 497 | struct device_attribute *attr, |
| 498 | const char *buf, |
| 499 | size_t count) |
| 500 | { |
| 501 | struct hid_device *hdev = to_hid_device(dev); |
| 502 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 503 | int value; |
| 504 | |
| 505 | if (kstrtoint(buf, 10, &value)) |
| 506 | return -EINVAL; |
| 507 | if (value < 0 || value > 1) |
| 508 | return -EINVAL; |
| 509 | |
| 510 | data_pointer->release_to_select = value; |
| 511 | lenovo_features_set_tpkbd(hdev); |
| 512 | |
| 513 | return count; |
| 514 | } |
| 515 | |
| 516 | static ssize_t attr_select_right_show_tpkbd(struct device *dev, |
| 517 | struct device_attribute *attr, |
| 518 | char *buf) |
| 519 | { |
| 520 | struct hid_device *hdev = to_hid_device(dev); |
| 521 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 522 | |
| 523 | return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->select_right); |
| 524 | } |
| 525 | |
| 526 | static ssize_t attr_select_right_store_tpkbd(struct device *dev, |
| 527 | struct device_attribute *attr, |
| 528 | const char *buf, |
| 529 | size_t count) |
| 530 | { |
| 531 | struct hid_device *hdev = to_hid_device(dev); |
| 532 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 533 | int value; |
| 534 | |
| 535 | if (kstrtoint(buf, 10, &value)) |
| 536 | return -EINVAL; |
| 537 | if (value < 0 || value > 1) |
| 538 | return -EINVAL; |
| 539 | |
| 540 | data_pointer->select_right = value; |
| 541 | lenovo_features_set_tpkbd(hdev); |
| 542 | |
| 543 | return count; |
| 544 | } |
| 545 | |
| 546 | static ssize_t attr_sensitivity_show_tpkbd(struct device *dev, |
| 547 | struct device_attribute *attr, |
| 548 | char *buf) |
| 549 | { |
| 550 | struct hid_device *hdev = to_hid_device(dev); |
| 551 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 552 | |
| 553 | return snprintf(buf, PAGE_SIZE, "%u\n", |
| 554 | data_pointer->sensitivity); |
| 555 | } |
| 556 | |
| 557 | static ssize_t attr_sensitivity_store_tpkbd(struct device *dev, |
| 558 | struct device_attribute *attr, |
| 559 | const char *buf, |
| 560 | size_t count) |
| 561 | { |
| 562 | struct hid_device *hdev = to_hid_device(dev); |
| 563 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 564 | int value; |
| 565 | |
| 566 | if (kstrtoint(buf, 10, &value) || value < 1 || value > 255) |
| 567 | return -EINVAL; |
| 568 | |
| 569 | data_pointer->sensitivity = value; |
| 570 | lenovo_features_set_tpkbd(hdev); |
| 571 | |
| 572 | return count; |
| 573 | } |
| 574 | |
| 575 | static ssize_t attr_press_speed_show_tpkbd(struct device *dev, |
| 576 | struct device_attribute *attr, |
| 577 | char *buf) |
| 578 | { |
| 579 | struct hid_device *hdev = to_hid_device(dev); |
| 580 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 581 | |
| 582 | return snprintf(buf, PAGE_SIZE, "%u\n", |
| 583 | data_pointer->press_speed); |
| 584 | } |
| 585 | |
| 586 | static ssize_t attr_press_speed_store_tpkbd(struct device *dev, |
| 587 | struct device_attribute *attr, |
| 588 | const char *buf, |
| 589 | size_t count) |
| 590 | { |
| 591 | struct hid_device *hdev = to_hid_device(dev); |
| 592 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 593 | int value; |
| 594 | |
| 595 | if (kstrtoint(buf, 10, &value) || value < 1 || value > 255) |
| 596 | return -EINVAL; |
| 597 | |
| 598 | data_pointer->press_speed = value; |
| 599 | lenovo_features_set_tpkbd(hdev); |
| 600 | |
| 601 | return count; |
| 602 | } |
| 603 | |
| 604 | static struct device_attribute dev_attr_press_to_select_tpkbd = |
| 605 | __ATTR(press_to_select, S_IWUSR | S_IRUGO, |
| 606 | attr_press_to_select_show_tpkbd, |
| 607 | attr_press_to_select_store_tpkbd); |
| 608 | |
| 609 | static struct device_attribute dev_attr_dragging_tpkbd = |
| 610 | __ATTR(dragging, S_IWUSR | S_IRUGO, |
| 611 | attr_dragging_show_tpkbd, |
| 612 | attr_dragging_store_tpkbd); |
| 613 | |
| 614 | static struct device_attribute dev_attr_release_to_select_tpkbd = |
| 615 | __ATTR(release_to_select, S_IWUSR | S_IRUGO, |
| 616 | attr_release_to_select_show_tpkbd, |
| 617 | attr_release_to_select_store_tpkbd); |
| 618 | |
| 619 | static struct device_attribute dev_attr_select_right_tpkbd = |
| 620 | __ATTR(select_right, S_IWUSR | S_IRUGO, |
| 621 | attr_select_right_show_tpkbd, |
| 622 | attr_select_right_store_tpkbd); |
| 623 | |
| 624 | static struct device_attribute dev_attr_sensitivity_tpkbd = |
| 625 | __ATTR(sensitivity, S_IWUSR | S_IRUGO, |
| 626 | attr_sensitivity_show_tpkbd, |
| 627 | attr_sensitivity_store_tpkbd); |
| 628 | |
| 629 | static struct device_attribute dev_attr_press_speed_tpkbd = |
| 630 | __ATTR(press_speed, S_IWUSR | S_IRUGO, |
| 631 | attr_press_speed_show_tpkbd, |
| 632 | attr_press_speed_store_tpkbd); |
| 633 | |
| 634 | static struct attribute *lenovo_attributes_tpkbd[] = { |
| 635 | &dev_attr_press_to_select_tpkbd.attr, |
| 636 | &dev_attr_dragging_tpkbd.attr, |
| 637 | &dev_attr_release_to_select_tpkbd.attr, |
| 638 | &dev_attr_select_right_tpkbd.attr, |
| 639 | &dev_attr_sensitivity_tpkbd.attr, |
| 640 | &dev_attr_press_speed_tpkbd.attr, |
| 641 | NULL |
| 642 | }; |
| 643 | |
| 644 | static const struct attribute_group lenovo_attr_group_tpkbd = { |
| 645 | .attrs = lenovo_attributes_tpkbd, |
| 646 | }; |
| 647 | |
| 648 | static enum led_brightness lenovo_led_brightness_get_tpkbd( |
| 649 | struct led_classdev *led_cdev) |
| 650 | { |
| 651 | struct device *dev = led_cdev->dev->parent; |
| 652 | struct hid_device *hdev = to_hid_device(dev); |
| 653 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 654 | int led_nr = 0; |
| 655 | |
| 656 | if (led_cdev == &data_pointer->led_micmute) |
| 657 | led_nr = 1; |
| 658 | |
| 659 | return data_pointer->led_state & (1 << led_nr) |
| 660 | ? LED_FULL |
| 661 | : LED_OFF; |
| 662 | } |
| 663 | |
| 664 | static void lenovo_led_brightness_set_tpkbd(struct led_classdev *led_cdev, |
| 665 | enum led_brightness value) |
| 666 | { |
| 667 | struct device *dev = led_cdev->dev->parent; |
| 668 | struct hid_device *hdev = to_hid_device(dev); |
| 669 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 670 | struct hid_report *report; |
| 671 | int led_nr = 0; |
| 672 | |
| 673 | if (led_cdev == &data_pointer->led_micmute) |
| 674 | led_nr = 1; |
| 675 | |
| 676 | if (value == LED_OFF) |
| 677 | data_pointer->led_state &= ~(1 << led_nr); |
| 678 | else |
| 679 | data_pointer->led_state |= 1 << led_nr; |
| 680 | |
| 681 | report = hdev->report_enum[HID_OUTPUT_REPORT].report_id_hash[3]; |
| 682 | report->field[0]->value[0] = (data_pointer->led_state >> 0) & 1; |
| 683 | report->field[0]->value[1] = (data_pointer->led_state >> 1) & 1; |
| 684 | hid_hw_request(hdev, report, HID_REQ_SET_REPORT); |
| 685 | } |
| 686 | |
| 687 | static int lenovo_probe_tpkbd(struct hid_device *hdev) |
| 688 | { |
| 689 | struct device *dev = &hdev->dev; |
| 690 | struct lenovo_drvdata_tpkbd *data_pointer; |
| 691 | size_t name_sz = strlen(dev_name(dev)) + 16; |
| 692 | char *name_mute, *name_micmute; |
| 693 | int i; |
| 694 | int ret; |
| 695 | |
| 696 | /* |
| 697 | * Only register extra settings against subdevice where input_mapping |
| 698 | * set drvdata to 1, i.e. the trackpoint. |
| 699 | */ |
| 700 | if (!hid_get_drvdata(hdev)) |
| 701 | return 0; |
| 702 | |
| 703 | hid_set_drvdata(hdev, NULL); |
| 704 | |
| 705 | /* Validate required reports. */ |
| 706 | for (i = 0; i < 4; i++) { |
| 707 | if (!hid_validate_values(hdev, HID_FEATURE_REPORT, 4, i, 1)) |
| 708 | return -ENODEV; |
| 709 | } |
| 710 | if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 3, 0, 2)) |
| 711 | return -ENODEV; |
| 712 | |
| 713 | ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd); |
| 714 | if (ret) |
| 715 | hid_warn(hdev, "Could not create sysfs group: %d\n", ret); |
| 716 | |
| 717 | data_pointer = devm_kzalloc(&hdev->dev, |
| 718 | sizeof(struct lenovo_drvdata_tpkbd), |
| 719 | GFP_KERNEL); |
| 720 | if (data_pointer == NULL) { |
| 721 | hid_err(hdev, "Could not allocate memory for driver data\n"); |
| 722 | ret = -ENOMEM; |
| 723 | goto err; |
| 724 | } |
| 725 | |
| 726 | // set same default values as windows driver |
| 727 | data_pointer->sensitivity = 0xa0; |
| 728 | data_pointer->press_speed = 0x38; |
| 729 | |
| 730 | name_mute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL); |
| 731 | name_micmute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL); |
| 732 | if (name_mute == NULL || name_micmute == NULL) { |
| 733 | hid_err(hdev, "Could not allocate memory for led data\n"); |
| 734 | ret = -ENOMEM; |
| 735 | goto err; |
| 736 | } |
| 737 | snprintf(name_mute, name_sz, "%s:amber:mute", dev_name(dev)); |
| 738 | snprintf(name_micmute, name_sz, "%s:amber:micmute", dev_name(dev)); |
| 739 | |
| 740 | hid_set_drvdata(hdev, data_pointer); |
| 741 | |
| 742 | data_pointer->led_mute.name = name_mute; |
| 743 | data_pointer->led_mute.brightness_get = lenovo_led_brightness_get_tpkbd; |
| 744 | data_pointer->led_mute.brightness_set = lenovo_led_brightness_set_tpkbd; |
| 745 | data_pointer->led_mute.dev = dev; |
| 746 | ret = led_classdev_register(dev, &data_pointer->led_mute); |
| 747 | if (ret < 0) |
| 748 | goto err; |
| 749 | |
| 750 | data_pointer->led_micmute.name = name_micmute; |
| 751 | data_pointer->led_micmute.brightness_get = |
| 752 | lenovo_led_brightness_get_tpkbd; |
| 753 | data_pointer->led_micmute.brightness_set = |
| 754 | lenovo_led_brightness_set_tpkbd; |
| 755 | data_pointer->led_micmute.dev = dev; |
| 756 | ret = led_classdev_register(dev, &data_pointer->led_micmute); |
| 757 | if (ret < 0) { |
| 758 | led_classdev_unregister(&data_pointer->led_mute); |
| 759 | goto err; |
| 760 | } |
| 761 | |
| 762 | lenovo_features_set_tpkbd(hdev); |
| 763 | |
| 764 | return 0; |
| 765 | err: |
| 766 | sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd); |
| 767 | return ret; |
| 768 | } |
| 769 | |
| 770 | static int lenovo_probe_cptkbd(struct hid_device *hdev) |
| 771 | { |
| 772 | int ret; |
| 773 | struct lenovo_drvdata_cptkbd *cptkbd_data; |
| 774 | |
| 775 | /* All the custom action happens on the USBMOUSE device for USB */ |
| 776 | if (hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD |
| 777 | && hdev->type != HID_TYPE_USBMOUSE) { |
| 778 | hid_dbg(hdev, "Ignoring keyboard half of device\n"); |
| 779 | return 0; |
| 780 | } |
| 781 | |
| 782 | cptkbd_data = devm_kzalloc(&hdev->dev, |
| 783 | sizeof(*cptkbd_data), |
| 784 | GFP_KERNEL); |
| 785 | if (cptkbd_data == NULL) { |
| 786 | hid_err(hdev, "can't alloc keyboard descriptor\n"); |
| 787 | return -ENOMEM; |
| 788 | } |
| 789 | hid_set_drvdata(hdev, cptkbd_data); |
| 790 | |
| 791 | /* |
| 792 | * Tell the keyboard a driver understands it, and turn F7, F9, F11 into |
| 793 | * regular keys |
| 794 | */ |
| 795 | ret = lenovo_send_cmd_cptkbd(hdev, 0x01, 0x03); |
| 796 | if (ret) |
| 797 | hid_warn(hdev, "Failed to switch F7/9/11 mode: %d\n", ret); |
| 798 | |
| 799 | /* Switch middle button to native mode */ |
| 800 | ret = lenovo_send_cmd_cptkbd(hdev, 0x09, 0x01); |
| 801 | if (ret) |
| 802 | hid_warn(hdev, "Failed to switch middle button: %d\n", ret); |
| 803 | |
| 804 | /* Set keyboard settings to known state */ |
| 805 | cptkbd_data->middlebutton_state = 0; |
| 806 | cptkbd_data->fn_lock = true; |
| 807 | cptkbd_data->sensitivity = 0x05; |
| 808 | lenovo_features_set_cptkbd(hdev); |
| 809 | |
| 810 | ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_cptkbd); |
| 811 | if (ret) |
| 812 | hid_warn(hdev, "Could not create sysfs group: %d\n", ret); |
| 813 | |
| 814 | return 0; |
| 815 | } |
| 816 | |
| 817 | static int lenovo_probe(struct hid_device *hdev, |
| 818 | const struct hid_device_id *id) |
| 819 | { |
| 820 | int ret; |
| 821 | |
| 822 | ret = hid_parse(hdev); |
| 823 | if (ret) { |
| 824 | hid_err(hdev, "hid_parse failed\n"); |
| 825 | goto err; |
| 826 | } |
| 827 | |
| 828 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
| 829 | if (ret) { |
| 830 | hid_err(hdev, "hid_hw_start failed\n"); |
| 831 | goto err; |
| 832 | } |
| 833 | |
| 834 | switch (hdev->product) { |
| 835 | case USB_DEVICE_ID_LENOVO_TPKBD: |
| 836 | ret = lenovo_probe_tpkbd(hdev); |
| 837 | break; |
| 838 | case USB_DEVICE_ID_LENOVO_CUSBKBD: |
| 839 | case USB_DEVICE_ID_LENOVO_CBTKBD: |
| 840 | ret = lenovo_probe_cptkbd(hdev); |
| 841 | break; |
| 842 | default: |
| 843 | ret = 0; |
| 844 | break; |
| 845 | } |
| 846 | if (ret) |
| 847 | goto err_hid; |
| 848 | |
| 849 | return 0; |
| 850 | err_hid: |
| 851 | hid_hw_stop(hdev); |
| 852 | err: |
| 853 | return ret; |
| 854 | } |
| 855 | |
| 856 | static void lenovo_remove_tpkbd(struct hid_device *hdev) |
| 857 | { |
| 858 | struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); |
| 859 | |
| 860 | /* |
| 861 | * Only the trackpoint half of the keyboard has drvdata and stuff that |
| 862 | * needs unregistering. |
| 863 | */ |
| 864 | if (data_pointer == NULL) |
| 865 | return; |
| 866 | |
| 867 | sysfs_remove_group(&hdev->dev.kobj, |
| 868 | &lenovo_attr_group_tpkbd); |
| 869 | |
| 870 | led_classdev_unregister(&data_pointer->led_micmute); |
| 871 | led_classdev_unregister(&data_pointer->led_mute); |
| 872 | |
| 873 | hid_set_drvdata(hdev, NULL); |
| 874 | } |
| 875 | |
| 876 | static void lenovo_remove_cptkbd(struct hid_device *hdev) |
| 877 | { |
| 878 | sysfs_remove_group(&hdev->dev.kobj, |
| 879 | &lenovo_attr_group_cptkbd); |
| 880 | } |
| 881 | |
| 882 | static void lenovo_remove(struct hid_device *hdev) |
| 883 | { |
| 884 | switch (hdev->product) { |
| 885 | case USB_DEVICE_ID_LENOVO_TPKBD: |
| 886 | lenovo_remove_tpkbd(hdev); |
| 887 | break; |
| 888 | case USB_DEVICE_ID_LENOVO_CUSBKBD: |
| 889 | case USB_DEVICE_ID_LENOVO_CBTKBD: |
| 890 | lenovo_remove_cptkbd(hdev); |
| 891 | break; |
| 892 | } |
| 893 | |
| 894 | hid_hw_stop(hdev); |
| 895 | } |
| 896 | |
| 897 | static int lenovo_input_configured(struct hid_device *hdev, |
| 898 | struct hid_input *hi) |
| 899 | { |
| 900 | switch (hdev->product) { |
| 901 | case USB_DEVICE_ID_LENOVO_TPKBD: |
| 902 | case USB_DEVICE_ID_LENOVO_CUSBKBD: |
| 903 | case USB_DEVICE_ID_LENOVO_CBTKBD: |
| 904 | if (test_bit(EV_REL, hi->input->evbit)) { |
| 905 | /* set only for trackpoint device */ |
| 906 | __set_bit(INPUT_PROP_POINTER, hi->input->propbit); |
| 907 | __set_bit(INPUT_PROP_POINTING_STICK, |
| 908 | hi->input->propbit); |
| 909 | } |
| 910 | break; |
| 911 | } |
| 912 | |
| 913 | return 0; |
| 914 | } |
| 915 | |
| 916 | |
| 917 | static const struct hid_device_id lenovo_devices[] = { |
| 918 | { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) }, |
| 919 | { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) }, |
| 920 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) }, |
| 921 | { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPPRODOCK) }, |
| 922 | { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_III) }, |
| 923 | { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) }, |
| 924 | { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) }, |
| 925 | { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) }, |
| 926 | { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) }, |
| 927 | { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL) }, |
| 928 | { } |
| 929 | }; |
| 930 | |
| 931 | MODULE_DEVICE_TABLE(hid, lenovo_devices); |
| 932 | |
| 933 | static struct hid_driver lenovo_driver = { |
| 934 | .name = "lenovo", |
| 935 | .id_table = lenovo_devices, |
| 936 | .input_configured = lenovo_input_configured, |
| 937 | .input_mapping = lenovo_input_mapping, |
| 938 | .probe = lenovo_probe, |
| 939 | .remove = lenovo_remove, |
| 940 | .raw_event = lenovo_raw_event, |
| 941 | .event = lenovo_event, |
| 942 | .report_fixup = lenovo_report_fixup, |
| 943 | }; |
| 944 | module_hid_driver(lenovo_driver); |
| 945 | |
| 946 | MODULE_LICENSE("GPL"); |