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Diffstat (limited to 'drivers/hid/hid-lenovo-tpkbd.c')
-rw-r--r--drivers/hid/hid-lenovo-tpkbd.c462
1 files changed, 0 insertions, 462 deletions
diff --git a/drivers/hid/hid-lenovo-tpkbd.c b/drivers/hid/hid-lenovo-tpkbd.c
deleted file mode 100644
index 2d25b6cbbc05..000000000000
--- a/drivers/hid/hid-lenovo-tpkbd.c
+++ /dev/null
@@ -1,462 +0,0 @@
1/*
2 * HID driver for Lenovo ThinkPad USB Keyboard with TrackPoint
3 *
4 * Copyright (c) 2012 Bernhard Seibold
5 */
6
7/*
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the Free
10 * Software Foundation; either version 2 of the License, or (at your option)
11 * any later version.
12 */
13
14#include <linux/module.h>
15#include <linux/sysfs.h>
16#include <linux/device.h>
17#include <linux/hid.h>
18#include <linux/input.h>
19#include <linux/leds.h>
20
21#include "hid-ids.h"
22
23/* This is only used for the trackpoint part of the driver, hence _tp */
24struct tpkbd_data_pointer {
25 int led_state;
26 struct led_classdev led_mute;
27 struct led_classdev led_micmute;
28 int press_to_select;
29 int dragging;
30 int release_to_select;
31 int select_right;
32 int sensitivity;
33 int press_speed;
34};
35
36#define map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
37
38static int tpkbd_input_mapping(struct hid_device *hdev,
39 struct hid_input *hi, struct hid_field *field,
40 struct hid_usage *usage, unsigned long **bit, int *max)
41{
42 if (usage->hid == (HID_UP_BUTTON | 0x0010)) {
43 /* mark the device as pointer */
44 hid_set_drvdata(hdev, (void *)1);
45 map_key_clear(KEY_MICMUTE);
46 return 1;
47 }
48 return 0;
49}
50
51#undef map_key_clear
52
53static int tpkbd_features_set(struct hid_device *hdev)
54{
55 struct hid_report *report;
56 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
57
58 report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[4];
59
60 report->field[0]->value[0] = data_pointer->press_to_select ? 0x01 : 0x02;
61 report->field[0]->value[0] |= data_pointer->dragging ? 0x04 : 0x08;
62 report->field[0]->value[0] |= data_pointer->release_to_select ? 0x10 : 0x20;
63 report->field[0]->value[0] |= data_pointer->select_right ? 0x80 : 0x40;
64 report->field[1]->value[0] = 0x03; // unknown setting, imitate windows driver
65 report->field[2]->value[0] = data_pointer->sensitivity;
66 report->field[3]->value[0] = data_pointer->press_speed;
67
68 hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
69 return 0;
70}
71
72static ssize_t pointer_press_to_select_show(struct device *dev,
73 struct device_attribute *attr,
74 char *buf)
75{
76 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
77 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
78
79 return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->press_to_select);
80}
81
82static ssize_t pointer_press_to_select_store(struct device *dev,
83 struct device_attribute *attr,
84 const char *buf,
85 size_t count)
86{
87 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
88 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
89 int value;
90
91 if (kstrtoint(buf, 10, &value))
92 return -EINVAL;
93 if (value < 0 || value > 1)
94 return -EINVAL;
95
96 data_pointer->press_to_select = value;
97 tpkbd_features_set(hdev);
98
99 return count;
100}
101
102static ssize_t pointer_dragging_show(struct device *dev,
103 struct device_attribute *attr,
104 char *buf)
105{
106 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
107 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
108
109 return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->dragging);
110}
111
112static ssize_t pointer_dragging_store(struct device *dev,
113 struct device_attribute *attr,
114 const char *buf,
115 size_t count)
116{
117 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
118 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
119 int value;
120
121 if (kstrtoint(buf, 10, &value))
122 return -EINVAL;
123 if (value < 0 || value > 1)
124 return -EINVAL;
125
126 data_pointer->dragging = value;
127 tpkbd_features_set(hdev);
128
129 return count;
130}
131
132static ssize_t pointer_release_to_select_show(struct device *dev,
133 struct device_attribute *attr,
134 char *buf)
135{
136 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
137 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
138
139 return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->release_to_select);
140}
141
142static ssize_t pointer_release_to_select_store(struct device *dev,
143 struct device_attribute *attr,
144 const char *buf,
145 size_t count)
146{
147 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
148 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
149 int value;
150
151 if (kstrtoint(buf, 10, &value))
152 return -EINVAL;
153 if (value < 0 || value > 1)
154 return -EINVAL;
155
156 data_pointer->release_to_select = value;
157 tpkbd_features_set(hdev);
158
159 return count;
160}
161
162static ssize_t pointer_select_right_show(struct device *dev,
163 struct device_attribute *attr,
164 char *buf)
165{
166 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
167 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
168
169 return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->select_right);
170}
171
172static ssize_t pointer_select_right_store(struct device *dev,
173 struct device_attribute *attr,
174 const char *buf,
175 size_t count)
176{
177 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
178 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
179 int value;
180
181 if (kstrtoint(buf, 10, &value))
182 return -EINVAL;
183 if (value < 0 || value > 1)
184 return -EINVAL;
185
186 data_pointer->select_right = value;
187 tpkbd_features_set(hdev);
188
189 return count;
190}
191
192static ssize_t pointer_sensitivity_show(struct device *dev,
193 struct device_attribute *attr,
194 char *buf)
195{
196 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
197 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
198
199 return snprintf(buf, PAGE_SIZE, "%u\n",
200 data_pointer->sensitivity);
201}
202
203static ssize_t pointer_sensitivity_store(struct device *dev,
204 struct device_attribute *attr,
205 const char *buf,
206 size_t count)
207{
208 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
209 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
210 int value;
211
212 if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
213 return -EINVAL;
214
215 data_pointer->sensitivity = value;
216 tpkbd_features_set(hdev);
217
218 return count;
219}
220
221static ssize_t pointer_press_speed_show(struct device *dev,
222 struct device_attribute *attr,
223 char *buf)
224{
225 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
226 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
227
228 return snprintf(buf, PAGE_SIZE, "%u\n",
229 data_pointer->press_speed);
230}
231
232static ssize_t pointer_press_speed_store(struct device *dev,
233 struct device_attribute *attr,
234 const char *buf,
235 size_t count)
236{
237 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
238 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
239 int value;
240
241 if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
242 return -EINVAL;
243
244 data_pointer->press_speed = value;
245 tpkbd_features_set(hdev);
246
247 return count;
248}
249
250static struct device_attribute dev_attr_pointer_press_to_select =
251 __ATTR(press_to_select, S_IWUSR | S_IRUGO,
252 pointer_press_to_select_show,
253 pointer_press_to_select_store);
254
255static struct device_attribute dev_attr_pointer_dragging =
256 __ATTR(dragging, S_IWUSR | S_IRUGO,
257 pointer_dragging_show,
258 pointer_dragging_store);
259
260static struct device_attribute dev_attr_pointer_release_to_select =
261 __ATTR(release_to_select, S_IWUSR | S_IRUGO,
262 pointer_release_to_select_show,
263 pointer_release_to_select_store);
264
265static struct device_attribute dev_attr_pointer_select_right =
266 __ATTR(select_right, S_IWUSR | S_IRUGO,
267 pointer_select_right_show,
268 pointer_select_right_store);
269
270static struct device_attribute dev_attr_pointer_sensitivity =
271 __ATTR(sensitivity, S_IWUSR | S_IRUGO,
272 pointer_sensitivity_show,
273 pointer_sensitivity_store);
274
275static struct device_attribute dev_attr_pointer_press_speed =
276 __ATTR(press_speed, S_IWUSR | S_IRUGO,
277 pointer_press_speed_show,
278 pointer_press_speed_store);
279
280static struct attribute *tpkbd_attributes_pointer[] = {
281 &dev_attr_pointer_press_to_select.attr,
282 &dev_attr_pointer_dragging.attr,
283 &dev_attr_pointer_release_to_select.attr,
284 &dev_attr_pointer_select_right.attr,
285 &dev_attr_pointer_sensitivity.attr,
286 &dev_attr_pointer_press_speed.attr,
287 NULL
288};
289
290static const struct attribute_group tpkbd_attr_group_pointer = {
291 .attrs = tpkbd_attributes_pointer,
292};
293
294static enum led_brightness tpkbd_led_brightness_get(
295 struct led_classdev *led_cdev)
296{
297 struct device *dev = led_cdev->dev->parent;
298 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
299 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
300 int led_nr = 0;
301
302 if (led_cdev == &data_pointer->led_micmute)
303 led_nr = 1;
304
305 return data_pointer->led_state & (1 << led_nr)
306 ? LED_FULL
307 : LED_OFF;
308}
309
310static void tpkbd_led_brightness_set(struct led_classdev *led_cdev,
311 enum led_brightness value)
312{
313 struct device *dev = led_cdev->dev->parent;
314 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
315 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
316 struct hid_report *report;
317 int led_nr = 0;
318
319 if (led_cdev == &data_pointer->led_micmute)
320 led_nr = 1;
321
322 if (value == LED_OFF)
323 data_pointer->led_state &= ~(1 << led_nr);
324 else
325 data_pointer->led_state |= 1 << led_nr;
326
327 report = hdev->report_enum[HID_OUTPUT_REPORT].report_id_hash[3];
328 report->field[0]->value[0] = (data_pointer->led_state >> 0) & 1;
329 report->field[0]->value[1] = (data_pointer->led_state >> 1) & 1;
330 hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
331}
332
333static int tpkbd_probe_tp(struct hid_device *hdev)
334{
335 struct device *dev = &hdev->dev;
336 struct tpkbd_data_pointer *data_pointer;
337 size_t name_sz = strlen(dev_name(dev)) + 16;
338 char *name_mute, *name_micmute;
339 int i;
340
341 /* Validate required reports. */
342 for (i = 0; i < 4; i++) {
343 if (!hid_validate_values(hdev, HID_FEATURE_REPORT, 4, i, 1))
344 return -ENODEV;
345 }
346 if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 3, 0, 2))
347 return -ENODEV;
348
349 if (sysfs_create_group(&hdev->dev.kobj,
350 &tpkbd_attr_group_pointer)) {
351 hid_warn(hdev, "Could not create sysfs group\n");
352 }
353
354 data_pointer = devm_kzalloc(&hdev->dev,
355 sizeof(struct tpkbd_data_pointer),
356 GFP_KERNEL);
357 if (data_pointer == NULL) {
358 hid_err(hdev, "Could not allocate memory for driver data\n");
359 return -ENOMEM;
360 }
361
362 // set same default values as windows driver
363 data_pointer->sensitivity = 0xa0;
364 data_pointer->press_speed = 0x38;
365
366 name_mute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
367 name_micmute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
368 if (name_mute == NULL || name_micmute == NULL) {
369 hid_err(hdev, "Could not allocate memory for led data\n");
370 return -ENOMEM;
371 }
372 snprintf(name_mute, name_sz, "%s:amber:mute", dev_name(dev));
373 snprintf(name_micmute, name_sz, "%s:amber:micmute", dev_name(dev));
374
375 hid_set_drvdata(hdev, data_pointer);
376
377 data_pointer->led_mute.name = name_mute;
378 data_pointer->led_mute.brightness_get = tpkbd_led_brightness_get;
379 data_pointer->led_mute.brightness_set = tpkbd_led_brightness_set;
380 data_pointer->led_mute.dev = dev;
381 led_classdev_register(dev, &data_pointer->led_mute);
382
383 data_pointer->led_micmute.name = name_micmute;
384 data_pointer->led_micmute.brightness_get = tpkbd_led_brightness_get;
385 data_pointer->led_micmute.brightness_set = tpkbd_led_brightness_set;
386 data_pointer->led_micmute.dev = dev;
387 led_classdev_register(dev, &data_pointer->led_micmute);
388
389 tpkbd_features_set(hdev);
390
391 return 0;
392}
393
394static int tpkbd_probe(struct hid_device *hdev,
395 const struct hid_device_id *id)
396{
397 int ret;
398
399 ret = hid_parse(hdev);
400 if (ret) {
401 hid_err(hdev, "hid_parse failed\n");
402 goto err;
403 }
404
405 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
406 if (ret) {
407 hid_err(hdev, "hid_hw_start failed\n");
408 goto err;
409 }
410
411 if (hid_get_drvdata(hdev)) {
412 hid_set_drvdata(hdev, NULL);
413 ret = tpkbd_probe_tp(hdev);
414 if (ret)
415 goto err_hid;
416 }
417
418 return 0;
419err_hid:
420 hid_hw_stop(hdev);
421err:
422 return ret;
423}
424
425static void tpkbd_remove_tp(struct hid_device *hdev)
426{
427 struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
428
429 sysfs_remove_group(&hdev->dev.kobj,
430 &tpkbd_attr_group_pointer);
431
432 led_classdev_unregister(&data_pointer->led_micmute);
433 led_classdev_unregister(&data_pointer->led_mute);
434
435 hid_set_drvdata(hdev, NULL);
436}
437
438static void tpkbd_remove(struct hid_device *hdev)
439{
440 if (hid_get_drvdata(hdev))
441 tpkbd_remove_tp(hdev);
442
443 hid_hw_stop(hdev);
444}
445
446static const struct hid_device_id tpkbd_devices[] = {
447 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
448 { }
449};
450
451MODULE_DEVICE_TABLE(hid, tpkbd_devices);
452
453static struct hid_driver tpkbd_driver = {
454 .name = "lenovo_tpkbd",
455 .id_table = tpkbd_devices,
456 .input_mapping = tpkbd_input_mapping,
457 .probe = tpkbd_probe,
458 .remove = tpkbd_remove,
459};
460module_hid_driver(tpkbd_driver);
461
462MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-27 09:48:03 -0500