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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Roccat Kova[+] driver for Linux
4 *
5 * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
6 */
7
8/*
9 */
10
11/*
12 * Roccat Kova[+] is a bigger version of the Pyra with two more side buttons.
13 */
14
15#include <linux/device.h>
16#include <linux/input.h>
17#include <linux/hid.h>
18#include <linux/module.h>
19#include <linux/slab.h>
20#include <linux/hid-roccat.h>
21#include "hid-ids.h"
22#include "hid-roccat-common.h"
23#include "hid-roccat-kovaplus.h"
24
25static uint profile_numbers[5] = {0, 1, 2, 3, 4};
26
27static uint kovaplus_convert_event_cpi(uint value)
28{
29 return (value == 7 ? 4 : (value == 4 ? 3 : value));
30}
31
32static void kovaplus_profile_activated(struct kovaplus_device *kovaplus,
33 uint new_profile_index)
34{
35 if (new_profile_index >= ARRAY_SIZE(kovaplus->profile_settings))
36 return;
37 kovaplus->actual_profile = new_profile_index;
38 kovaplus->actual_cpi = kovaplus->profile_settings[new_profile_index].cpi_startup_level;
39 kovaplus->actual_x_sensitivity = kovaplus->profile_settings[new_profile_index].sensitivity_x;
40 kovaplus->actual_y_sensitivity = kovaplus->profile_settings[new_profile_index].sensitivity_y;
41}
42
43static int kovaplus_send_control(struct usb_device *usb_dev, uint value,
44 enum kovaplus_control_requests request)
45{
46 int retval;
47 struct roccat_common2_control control;
48
49 if ((request == KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
50 request == KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
51 value > 4)
52 return -EINVAL;
53
54 control.command = ROCCAT_COMMON_COMMAND_CONTROL;
55 control.value = value;
56 control.request = request;
57
58 retval = roccat_common2_send(usb_dev, ROCCAT_COMMON_COMMAND_CONTROL,
59 &control, sizeof(struct roccat_common2_control));
60
61 return retval;
62}
63
64static int kovaplus_select_profile(struct usb_device *usb_dev, uint number,
65 enum kovaplus_control_requests request)
66{
67 return kovaplus_send_control(usb_dev, number, request);
68}
69
70static int kovaplus_get_profile_settings(struct usb_device *usb_dev,
71 struct kovaplus_profile_settings *buf, uint number)
72{
73 int retval;
74
75 retval = kovaplus_select_profile(usb_dev, number,
76 KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
77 if (retval)
78 return retval;
79
80 return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_SETTINGS,
81 buf, KOVAPLUS_SIZE_PROFILE_SETTINGS);
82}
83
84static int kovaplus_get_profile_buttons(struct usb_device *usb_dev,
85 struct kovaplus_profile_buttons *buf, int number)
86{
87 int retval;
88
89 retval = kovaplus_select_profile(usb_dev, number,
90 KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
91 if (retval)
92 return retval;
93
94 return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_BUTTONS,
95 buf, KOVAPLUS_SIZE_PROFILE_BUTTONS);
96}
97
98/* retval is 0-4 on success, < 0 on error */
99static int kovaplus_get_actual_profile(struct usb_device *usb_dev)
100{
101 struct kovaplus_actual_profile buf;
102 int retval;
103
104 retval = roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_ACTUAL_PROFILE,
105 &buf, sizeof(struct kovaplus_actual_profile));
106
107 return retval ? retval : buf.actual_profile;
108}
109
110static int kovaplus_set_actual_profile(struct usb_device *usb_dev,
111 int new_profile)
112{
113 struct kovaplus_actual_profile buf;
114
115 buf.command = KOVAPLUS_COMMAND_ACTUAL_PROFILE;
116 buf.size = sizeof(struct kovaplus_actual_profile);
117 buf.actual_profile = new_profile;
118
119 return roccat_common2_send_with_status(usb_dev,
120 KOVAPLUS_COMMAND_ACTUAL_PROFILE,
121 &buf, sizeof(struct kovaplus_actual_profile));
122}
123
124static ssize_t kovaplus_sysfs_read(struct file *fp, struct kobject *kobj,
125 char *buf, loff_t off, size_t count,
126 size_t real_size, uint command)
127{
128 struct device *dev = kobj_to_dev(kobj)->parent->parent;
129 struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
130 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
131 int retval;
132
133 if (off >= real_size)
134 return 0;
135
136 if (off != 0 || count != real_size)
137 return -EINVAL;
138
139 mutex_lock(&kovaplus->kovaplus_lock);
140 retval = roccat_common2_receive(usb_dev, command, buf, real_size);
141 mutex_unlock(&kovaplus->kovaplus_lock);
142
143 if (retval)
144 return retval;
145
146 return real_size;
147}
148
149static ssize_t kovaplus_sysfs_write(struct file *fp, struct kobject *kobj,
150 void const *buf, loff_t off, size_t count,
151 size_t real_size, uint command)
152{
153 struct device *dev = kobj_to_dev(kobj)->parent->parent;
154 struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
155 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
156 int retval;
157
158 if (off != 0 || count != real_size)
159 return -EINVAL;
160
161 mutex_lock(&kovaplus->kovaplus_lock);
162 retval = roccat_common2_send_with_status(usb_dev, command,
163 buf, real_size);
164 mutex_unlock(&kovaplus->kovaplus_lock);
165
166 if (retval)
167 return retval;
168
169 return real_size;
170}
171
172#define KOVAPLUS_SYSFS_W(thingy, THINGY) \
173static ssize_t kovaplus_sysfs_write_ ## thingy(struct file *fp, \
174 struct kobject *kobj, struct bin_attribute *attr, char *buf, \
175 loff_t off, size_t count) \
176{ \
177 return kovaplus_sysfs_write(fp, kobj, buf, off, count, \
178 KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
179}
180
181#define KOVAPLUS_SYSFS_R(thingy, THINGY) \
182static ssize_t kovaplus_sysfs_read_ ## thingy(struct file *fp, \
183 struct kobject *kobj, struct bin_attribute *attr, char *buf, \
184 loff_t off, size_t count) \
185{ \
186 return kovaplus_sysfs_read(fp, kobj, buf, off, count, \
187 KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
188}
189
190#define KOVAPLUS_SYSFS_RW(thingy, THINGY) \
191KOVAPLUS_SYSFS_W(thingy, THINGY) \
192KOVAPLUS_SYSFS_R(thingy, THINGY)
193
194#define KOVAPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
195KOVAPLUS_SYSFS_RW(thingy, THINGY); \
196static struct bin_attribute bin_attr_##thingy = { \
197 .attr = { .name = #thingy, .mode = 0660 }, \
198 .size = KOVAPLUS_SIZE_ ## THINGY, \
199 .read = kovaplus_sysfs_read_ ## thingy, \
200 .write = kovaplus_sysfs_write_ ## thingy \
201}
202
203#define KOVAPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
204KOVAPLUS_SYSFS_W(thingy, THINGY); \
205static struct bin_attribute bin_attr_##thingy = { \
206 .attr = { .name = #thingy, .mode = 0220 }, \
207 .size = KOVAPLUS_SIZE_ ## THINGY, \
208 .write = kovaplus_sysfs_write_ ## thingy \
209}
210KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL);
211KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO);
212KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
213KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);
214
215static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
216 struct kobject *kobj, struct bin_attribute *attr, char *buf,
217 loff_t off, size_t count)
218{
219 struct device *dev = kobj_to_dev(kobj)->parent->parent;
220 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
221 ssize_t retval;
222
223 retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
224 KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
225 if (retval)
226 return retval;
227
228 return kovaplus_sysfs_read(fp, kobj, buf, off, count,
229 KOVAPLUS_SIZE_PROFILE_SETTINGS,
230 KOVAPLUS_COMMAND_PROFILE_SETTINGS);
231}
232
233static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,
234 struct kobject *kobj, struct bin_attribute *attr, char *buf,
235 loff_t off, size_t count)
236{
237 struct device *dev = kobj_to_dev(kobj)->parent->parent;
238 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
239 ssize_t retval;
240
241 retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
242 KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
243 if (retval)
244 return retval;
245
246 return kovaplus_sysfs_read(fp, kobj, buf, off, count,
247 KOVAPLUS_SIZE_PROFILE_BUTTONS,
248 KOVAPLUS_COMMAND_PROFILE_BUTTONS);
249}
250
251#define PROFILE_ATTR(number) \
252static struct bin_attribute bin_attr_profile##number##_settings = { \
253 .attr = { .name = "profile" #number "_settings", .mode = 0440 }, \
254 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS, \
255 .read = kovaplus_sysfs_read_profilex_settings, \
256 .private = &profile_numbers[number-1], \
257}; \
258static struct bin_attribute bin_attr_profile##number##_buttons = { \
259 .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \
260 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS, \
261 .read = kovaplus_sysfs_read_profilex_buttons, \
262 .private = &profile_numbers[number-1], \
263};
264PROFILE_ATTR(1);
265PROFILE_ATTR(2);
266PROFILE_ATTR(3);
267PROFILE_ATTR(4);
268PROFILE_ATTR(5);
269
270static ssize_t kovaplus_sysfs_show_actual_profile(struct device *dev,
271 struct device_attribute *attr, char *buf)
272{
273 struct kovaplus_device *kovaplus =
274 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
275 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_profile);
276}
277
278static ssize_t kovaplus_sysfs_set_actual_profile(struct device *dev,
279 struct device_attribute *attr, char const *buf, size_t size)
280{
281 struct kovaplus_device *kovaplus;
282 struct usb_device *usb_dev;
283 unsigned long profile;
284 int retval;
285 struct kovaplus_roccat_report roccat_report;
286
287 dev = dev->parent->parent;
288 kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
289 usb_dev = interface_to_usbdev(to_usb_interface(dev));
290
291 retval = kstrtoul(buf, 10, &profile);
292 if (retval)
293 return retval;
294
295 if (profile >= 5)
296 return -EINVAL;
297
298 mutex_lock(&kovaplus->kovaplus_lock);
299 retval = kovaplus_set_actual_profile(usb_dev, profile);
300 if (retval) {
301 mutex_unlock(&kovaplus->kovaplus_lock);
302 return retval;
303 }
304
305 kovaplus_profile_activated(kovaplus, profile);
306
307 roccat_report.type = KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1;
308 roccat_report.profile = profile + 1;
309 roccat_report.button = 0;
310 roccat_report.data1 = profile + 1;
311 roccat_report.data2 = 0;
312 roccat_report_event(kovaplus->chrdev_minor,
313 (uint8_t const *)&roccat_report);
314
315 mutex_unlock(&kovaplus->kovaplus_lock);
316
317 return size;
318}
319static DEVICE_ATTR(actual_profile, 0660,
320 kovaplus_sysfs_show_actual_profile,
321 kovaplus_sysfs_set_actual_profile);
322
323static ssize_t kovaplus_sysfs_show_actual_cpi(struct device *dev,
324 struct device_attribute *attr, char *buf)
325{
326 struct kovaplus_device *kovaplus =
327 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
328 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_cpi);
329}
330static DEVICE_ATTR(actual_cpi, 0440, kovaplus_sysfs_show_actual_cpi, NULL);
331
332static ssize_t kovaplus_sysfs_show_actual_sensitivity_x(struct device *dev,
333 struct device_attribute *attr, char *buf)
334{
335 struct kovaplus_device *kovaplus =
336 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
337 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_x_sensitivity);
338}
339static DEVICE_ATTR(actual_sensitivity_x, 0440,
340 kovaplus_sysfs_show_actual_sensitivity_x, NULL);
341
342static ssize_t kovaplus_sysfs_show_actual_sensitivity_y(struct device *dev,
343 struct device_attribute *attr, char *buf)
344{
345 struct kovaplus_device *kovaplus =
346 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
347 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_y_sensitivity);
348}
349static DEVICE_ATTR(actual_sensitivity_y, 0440,
350 kovaplus_sysfs_show_actual_sensitivity_y, NULL);
351
352static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev,
353 struct device_attribute *attr, char *buf)
354{
355 struct kovaplus_device *kovaplus;
356 struct usb_device *usb_dev;
357 struct kovaplus_info info;
358
359 dev = dev->parent->parent;
360 kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
361 usb_dev = interface_to_usbdev(to_usb_interface(dev));
362
363 mutex_lock(&kovaplus->kovaplus_lock);
364 roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
365 &info, KOVAPLUS_SIZE_INFO);
366 mutex_unlock(&kovaplus->kovaplus_lock);
367
368 return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
369}
370static DEVICE_ATTR(firmware_version, 0440,
371 kovaplus_sysfs_show_firmware_version, NULL);
372
373static struct attribute *kovaplus_attrs[] = {
374 &dev_attr_actual_cpi.attr,
375 &dev_attr_firmware_version.attr,
376 &dev_attr_actual_profile.attr,
377 &dev_attr_actual_sensitivity_x.attr,
378 &dev_attr_actual_sensitivity_y.attr,
379 NULL,
380};
381
382static struct bin_attribute *kovaplus_bin_attributes[] = {
383 &bin_attr_control,
384 &bin_attr_info,
385 &bin_attr_profile_settings,
386 &bin_attr_profile_buttons,
387 &bin_attr_profile1_settings,
388 &bin_attr_profile2_settings,
389 &bin_attr_profile3_settings,
390 &bin_attr_profile4_settings,
391 &bin_attr_profile5_settings,
392 &bin_attr_profile1_buttons,
393 &bin_attr_profile2_buttons,
394 &bin_attr_profile3_buttons,
395 &bin_attr_profile4_buttons,
396 &bin_attr_profile5_buttons,
397 NULL,
398};
399
400static const struct attribute_group kovaplus_group = {
401 .attrs = kovaplus_attrs,
402 .bin_attrs = kovaplus_bin_attributes,
403};
404
405static const struct attribute_group *kovaplus_groups[] = {
406 &kovaplus_group,
407 NULL,
408};
409
410static const struct class kovaplus_class = {
411 .name = "kovaplus",
412 .dev_groups = kovaplus_groups,
413};
414
415static int kovaplus_init_kovaplus_device_struct(struct usb_device *usb_dev,
416 struct kovaplus_device *kovaplus)
417{
418 int retval, i;
419 static uint wait = 70; /* device will freeze with just 60 */
420
421 mutex_init(&kovaplus->kovaplus_lock);
422
423 for (i = 0; i < 5; ++i) {
424 msleep(wait);
425 retval = kovaplus_get_profile_settings(usb_dev,
426 &kovaplus->profile_settings[i], i);
427 if (retval)
428 return retval;
429
430 msleep(wait);
431 retval = kovaplus_get_profile_buttons(usb_dev,
432 &kovaplus->profile_buttons[i], i);
433 if (retval)
434 return retval;
435 }
436
437 msleep(wait);
438 retval = kovaplus_get_actual_profile(usb_dev);
439 if (retval < 0)
440 return retval;
441 kovaplus_profile_activated(kovaplus, retval);
442
443 return 0;
444}
445
446static int kovaplus_init_specials(struct hid_device *hdev)
447{
448 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
449 struct usb_device *usb_dev = interface_to_usbdev(intf);
450 struct kovaplus_device *kovaplus;
451 int retval;
452
453 if (intf->cur_altsetting->desc.bInterfaceProtocol
454 == USB_INTERFACE_PROTOCOL_MOUSE) {
455
456 kovaplus = kzalloc(sizeof(*kovaplus), GFP_KERNEL);
457 if (!kovaplus) {
458 hid_err(hdev, "can't alloc device descriptor\n");
459 return -ENOMEM;
460 }
461 hid_set_drvdata(hdev, kovaplus);
462
463 retval = kovaplus_init_kovaplus_device_struct(usb_dev, kovaplus);
464 if (retval) {
465 hid_err(hdev, "couldn't init struct kovaplus_device\n");
466 goto exit_free;
467 }
468
469 retval = roccat_connect(&kovaplus_class, hdev,
470 sizeof(struct kovaplus_roccat_report));
471 if (retval < 0) {
472 hid_err(hdev, "couldn't init char dev\n");
473 } else {
474 kovaplus->chrdev_minor = retval;
475 kovaplus->roccat_claimed = 1;
476 }
477
478 } else {
479 hid_set_drvdata(hdev, NULL);
480 }
481
482 return 0;
483exit_free:
484 kfree(kovaplus);
485 return retval;
486}
487
488static void kovaplus_remove_specials(struct hid_device *hdev)
489{
490 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
491 struct kovaplus_device *kovaplus;
492
493 if (intf->cur_altsetting->desc.bInterfaceProtocol
494 == USB_INTERFACE_PROTOCOL_MOUSE) {
495 kovaplus = hid_get_drvdata(hdev);
496 if (kovaplus->roccat_claimed)
497 roccat_disconnect(kovaplus->chrdev_minor);
498 kfree(kovaplus);
499 }
500}
501
502static int kovaplus_probe(struct hid_device *hdev,
503 const struct hid_device_id *id)
504{
505 int retval;
506
507 if (!hid_is_usb(hdev))
508 return -EINVAL;
509
510 retval = hid_parse(hdev);
511 if (retval) {
512 hid_err(hdev, "parse failed\n");
513 goto exit;
514 }
515
516 retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
517 if (retval) {
518 hid_err(hdev, "hw start failed\n");
519 goto exit;
520 }
521
522 retval = kovaplus_init_specials(hdev);
523 if (retval) {
524 hid_err(hdev, "couldn't install mouse\n");
525 goto exit_stop;
526 }
527
528 return 0;
529
530exit_stop:
531 hid_hw_stop(hdev);
532exit:
533 return retval;
534}
535
536static void kovaplus_remove(struct hid_device *hdev)
537{
538 kovaplus_remove_specials(hdev);
539 hid_hw_stop(hdev);
540}
541
542static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus,
543 u8 const *data)
544{
545 struct kovaplus_mouse_report_button const *button_report;
546
547 if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
548 return;
549
550 button_report = (struct kovaplus_mouse_report_button const *)data;
551
552 switch (button_report->type) {
553 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1:
554 kovaplus_profile_activated(kovaplus, button_report->data1 - 1);
555 break;
556 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI:
557 kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1);
558 break;
559 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
560 kovaplus->actual_x_sensitivity = button_report->data1;
561 kovaplus->actual_y_sensitivity = button_report->data2;
562 break;
563 default:
564 break;
565 }
566}
567
568static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus,
569 u8 const *data)
570{
571 struct kovaplus_roccat_report roccat_report;
572 struct kovaplus_mouse_report_button const *button_report;
573
574 if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
575 return;
576
577 button_report = (struct kovaplus_mouse_report_button const *)data;
578
579 if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2)
580 return;
581
582 roccat_report.type = button_report->type;
583 roccat_report.profile = kovaplus->actual_profile + 1;
584
585 if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO ||
586 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT ||
587 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
588 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER)
589 roccat_report.button = button_report->data1;
590 else
591 roccat_report.button = 0;
592
593 if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI)
594 roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1);
595 else
596 roccat_report.data1 = button_report->data1;
597
598 roccat_report.data2 = button_report->data2;
599
600 roccat_report_event(kovaplus->chrdev_minor,
601 (uint8_t const *)&roccat_report);
602}
603
604static int kovaplus_raw_event(struct hid_device *hdev,
605 struct hid_report *report, u8 *data, int size)
606{
607 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
608 struct kovaplus_device *kovaplus = hid_get_drvdata(hdev);
609
610 if (intf->cur_altsetting->desc.bInterfaceProtocol
611 != USB_INTERFACE_PROTOCOL_MOUSE)
612 return 0;
613
614 if (kovaplus == NULL)
615 return 0;
616
617 kovaplus_keep_values_up_to_date(kovaplus, data);
618
619 if (kovaplus->roccat_claimed)
620 kovaplus_report_to_chrdev(kovaplus, data);
621
622 return 0;
623}
624
625static const struct hid_device_id kovaplus_devices[] = {
626 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
627 { }
628};
629
630MODULE_DEVICE_TABLE(hid, kovaplus_devices);
631
632static struct hid_driver kovaplus_driver = {
633 .name = "kovaplus",
634 .id_table = kovaplus_devices,
635 .probe = kovaplus_probe,
636 .remove = kovaplus_remove,
637 .raw_event = kovaplus_raw_event
638};
639
640static int __init kovaplus_init(void)
641{
642 int retval;
643
644 retval = class_register(&kovaplus_class);
645 if (retval)
646 return retval;
647
648 retval = hid_register_driver(&kovaplus_driver);
649 if (retval)
650 class_unregister(&kovaplus_class);
651 return retval;
652}
653
654static void __exit kovaplus_exit(void)
655{
656 hid_unregister_driver(&kovaplus_driver);
657 class_unregister(&kovaplus_class);
658}
659
660module_init(kovaplus_init);
661module_exit(kovaplus_exit);
662
663MODULE_AUTHOR("Stefan Achatz");
664MODULE_DESCRIPTION("USB Roccat Kova[+] driver");
665MODULE_LICENSE("GPL v2");
1/*
2 * Roccat Kova[+] driver for Linux
3 *
4 * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
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/*
15 * Roccat Kova[+] is a bigger version of the Pyra with two more side buttons.
16 */
17
18#include <linux/device.h>
19#include <linux/input.h>
20#include <linux/hid.h>
21#include <linux/module.h>
22#include <linux/slab.h>
23#include <linux/hid-roccat.h>
24#include "hid-ids.h"
25#include "hid-roccat-common.h"
26#include "hid-roccat-kovaplus.h"
27
28static uint profile_numbers[5] = {0, 1, 2, 3, 4};
29
30static struct class *kovaplus_class;
31
32static uint kovaplus_convert_event_cpi(uint value)
33{
34 return (value == 7 ? 4 : (value == 4 ? 3 : value));
35}
36
37static void kovaplus_profile_activated(struct kovaplus_device *kovaplus,
38 uint new_profile_index)
39{
40 kovaplus->actual_profile = new_profile_index;
41 kovaplus->actual_cpi = kovaplus->profile_settings[new_profile_index].cpi_startup_level;
42 kovaplus->actual_x_sensitivity = kovaplus->profile_settings[new_profile_index].sensitivity_x;
43 kovaplus->actual_y_sensitivity = kovaplus->profile_settings[new_profile_index].sensitivity_y;
44}
45
46static int kovaplus_send_control(struct usb_device *usb_dev, uint value,
47 enum kovaplus_control_requests request)
48{
49 int retval;
50 struct kovaplus_control control;
51
52 if ((request == KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
53 request == KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
54 value > 4)
55 return -EINVAL;
56
57 control.command = KOVAPLUS_COMMAND_CONTROL;
58 control.value = value;
59 control.request = request;
60
61 retval = roccat_common_send(usb_dev, KOVAPLUS_COMMAND_CONTROL,
62 &control, sizeof(struct kovaplus_control));
63
64 return retval;
65}
66
67static int kovaplus_receive_control_status(struct usb_device *usb_dev)
68{
69 int retval;
70 struct kovaplus_control control;
71
72 do {
73 retval = roccat_common_receive(usb_dev, KOVAPLUS_COMMAND_CONTROL,
74 &control, sizeof(struct kovaplus_control));
75
76 /* check if we get a completely wrong answer */
77 if (retval)
78 return retval;
79
80 if (control.value == KOVAPLUS_CONTROL_REQUEST_STATUS_OK)
81 return 0;
82
83 /* indicates that hardware needs some more time to complete action */
84 if (control.value == KOVAPLUS_CONTROL_REQUEST_STATUS_WAIT) {
85 msleep(500); /* windows driver uses 1000 */
86 continue;
87 }
88
89 /* seems to be critical - replug necessary */
90 if (control.value == KOVAPLUS_CONTROL_REQUEST_STATUS_OVERLOAD)
91 return -EINVAL;
92
93 hid_err(usb_dev, "roccat_common_receive_control_status: "
94 "unknown response value 0x%x\n", control.value);
95 return -EINVAL;
96 } while (1);
97}
98
99static int kovaplus_send(struct usb_device *usb_dev, uint command,
100 void const *buf, uint size)
101{
102 int retval;
103
104 retval = roccat_common_send(usb_dev, command, buf, size);
105 if (retval)
106 return retval;
107
108 msleep(100);
109
110 return kovaplus_receive_control_status(usb_dev);
111}
112
113static int kovaplus_select_profile(struct usb_device *usb_dev, uint number,
114 enum kovaplus_control_requests request)
115{
116 return kovaplus_send_control(usb_dev, number, request);
117}
118
119static int kovaplus_get_info(struct usb_device *usb_dev,
120 struct kovaplus_info *buf)
121{
122 return roccat_common_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
123 buf, sizeof(struct kovaplus_info));
124}
125
126static int kovaplus_get_profile_settings(struct usb_device *usb_dev,
127 struct kovaplus_profile_settings *buf, uint number)
128{
129 int retval;
130
131 retval = kovaplus_select_profile(usb_dev, number,
132 KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
133 if (retval)
134 return retval;
135
136 return roccat_common_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_SETTINGS,
137 buf, sizeof(struct kovaplus_profile_settings));
138}
139
140static int kovaplus_set_profile_settings(struct usb_device *usb_dev,
141 struct kovaplus_profile_settings const *settings)
142{
143 return kovaplus_send(usb_dev, KOVAPLUS_COMMAND_PROFILE_SETTINGS,
144 settings, sizeof(struct kovaplus_profile_settings));
145}
146
147static int kovaplus_get_profile_buttons(struct usb_device *usb_dev,
148 struct kovaplus_profile_buttons *buf, int number)
149{
150 int retval;
151
152 retval = kovaplus_select_profile(usb_dev, number,
153 KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
154 if (retval)
155 return retval;
156
157 return roccat_common_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_BUTTONS,
158 buf, sizeof(struct kovaplus_profile_buttons));
159}
160
161static int kovaplus_set_profile_buttons(struct usb_device *usb_dev,
162 struct kovaplus_profile_buttons const *buttons)
163{
164 return kovaplus_send(usb_dev, KOVAPLUS_COMMAND_PROFILE_BUTTONS,
165 buttons, sizeof(struct kovaplus_profile_buttons));
166}
167
168/* retval is 0-4 on success, < 0 on error */
169static int kovaplus_get_actual_profile(struct usb_device *usb_dev)
170{
171 struct kovaplus_actual_profile buf;
172 int retval;
173
174 retval = roccat_common_receive(usb_dev, KOVAPLUS_COMMAND_ACTUAL_PROFILE,
175 &buf, sizeof(struct kovaplus_actual_profile));
176
177 return retval ? retval : buf.actual_profile;
178}
179
180static int kovaplus_set_actual_profile(struct usb_device *usb_dev,
181 int new_profile)
182{
183 struct kovaplus_actual_profile buf;
184
185 buf.command = KOVAPLUS_COMMAND_ACTUAL_PROFILE;
186 buf.size = sizeof(struct kovaplus_actual_profile);
187 buf.actual_profile = new_profile;
188
189 return kovaplus_send(usb_dev, KOVAPLUS_COMMAND_ACTUAL_PROFILE,
190 &buf, sizeof(struct kovaplus_actual_profile));
191}
192
193static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
194 struct kobject *kobj, struct bin_attribute *attr, char *buf,
195 loff_t off, size_t count)
196{
197 struct device *dev =
198 container_of(kobj, struct device, kobj)->parent->parent;
199 struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
200
201 if (off >= sizeof(struct kovaplus_profile_settings))
202 return 0;
203
204 if (off + count > sizeof(struct kovaplus_profile_settings))
205 count = sizeof(struct kovaplus_profile_settings) - off;
206
207 mutex_lock(&kovaplus->kovaplus_lock);
208 memcpy(buf, ((char const *)&kovaplus->profile_settings[*(uint *)(attr->private)]) + off,
209 count);
210 mutex_unlock(&kovaplus->kovaplus_lock);
211
212 return count;
213}
214
215static ssize_t kovaplus_sysfs_write_profile_settings(struct file *fp,
216 struct kobject *kobj, struct bin_attribute *attr, char *buf,
217 loff_t off, size_t count)
218{
219 struct device *dev =
220 container_of(kobj, struct device, kobj)->parent->parent;
221 struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
222 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
223 int retval = 0;
224 int difference;
225 int profile_index;
226 struct kovaplus_profile_settings *profile_settings;
227
228 if (off != 0 || count != sizeof(struct kovaplus_profile_settings))
229 return -EINVAL;
230
231 profile_index = ((struct kovaplus_profile_settings const *)buf)->profile_index;
232 profile_settings = &kovaplus->profile_settings[profile_index];
233
234 mutex_lock(&kovaplus->kovaplus_lock);
235 difference = memcmp(buf, profile_settings,
236 sizeof(struct kovaplus_profile_settings));
237 if (difference) {
238 retval = kovaplus_set_profile_settings(usb_dev,
239 (struct kovaplus_profile_settings const *)buf);
240 if (!retval)
241 memcpy(profile_settings, buf,
242 sizeof(struct kovaplus_profile_settings));
243 }
244 mutex_unlock(&kovaplus->kovaplus_lock);
245
246 if (retval)
247 return retval;
248
249 return sizeof(struct kovaplus_profile_settings);
250}
251
252static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,
253 struct kobject *kobj, struct bin_attribute *attr, char *buf,
254 loff_t off, size_t count)
255{
256 struct device *dev =
257 container_of(kobj, struct device, kobj)->parent->parent;
258 struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
259
260 if (off >= sizeof(struct kovaplus_profile_buttons))
261 return 0;
262
263 if (off + count > sizeof(struct kovaplus_profile_buttons))
264 count = sizeof(struct kovaplus_profile_buttons) - off;
265
266 mutex_lock(&kovaplus->kovaplus_lock);
267 memcpy(buf, ((char const *)&kovaplus->profile_buttons[*(uint *)(attr->private)]) + off,
268 count);
269 mutex_unlock(&kovaplus->kovaplus_lock);
270
271 return count;
272}
273
274static ssize_t kovaplus_sysfs_write_profile_buttons(struct file *fp,
275 struct kobject *kobj, struct bin_attribute *attr, char *buf,
276 loff_t off, size_t count)
277{
278 struct device *dev =
279 container_of(kobj, struct device, kobj)->parent->parent;
280 struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
281 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
282 int retval = 0;
283 int difference;
284 uint profile_index;
285 struct kovaplus_profile_buttons *profile_buttons;
286
287 if (off != 0 || count != sizeof(struct kovaplus_profile_buttons))
288 return -EINVAL;
289
290 profile_index = ((struct kovaplus_profile_buttons const *)buf)->profile_index;
291 profile_buttons = &kovaplus->profile_buttons[profile_index];
292
293 mutex_lock(&kovaplus->kovaplus_lock);
294 difference = memcmp(buf, profile_buttons,
295 sizeof(struct kovaplus_profile_buttons));
296 if (difference) {
297 retval = kovaplus_set_profile_buttons(usb_dev,
298 (struct kovaplus_profile_buttons const *)buf);
299 if (!retval)
300 memcpy(profile_buttons, buf,
301 sizeof(struct kovaplus_profile_buttons));
302 }
303 mutex_unlock(&kovaplus->kovaplus_lock);
304
305 if (retval)
306 return retval;
307
308 return sizeof(struct kovaplus_profile_buttons);
309}
310
311static ssize_t kovaplus_sysfs_show_actual_profile(struct device *dev,
312 struct device_attribute *attr, char *buf)
313{
314 struct kovaplus_device *kovaplus =
315 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
316 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_profile);
317}
318
319static ssize_t kovaplus_sysfs_set_actual_profile(struct device *dev,
320 struct device_attribute *attr, char const *buf, size_t size)
321{
322 struct kovaplus_device *kovaplus;
323 struct usb_device *usb_dev;
324 unsigned long profile;
325 int retval;
326
327 dev = dev->parent->parent;
328 kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
329 usb_dev = interface_to_usbdev(to_usb_interface(dev));
330
331 retval = strict_strtoul(buf, 10, &profile);
332 if (retval)
333 return retval;
334
335 if (profile >= 5)
336 return -EINVAL;
337
338 mutex_lock(&kovaplus->kovaplus_lock);
339 retval = kovaplus_set_actual_profile(usb_dev, profile);
340 kovaplus_profile_activated(kovaplus, profile);
341 mutex_unlock(&kovaplus->kovaplus_lock);
342 if (retval)
343 return retval;
344
345 return size;
346}
347
348static ssize_t kovaplus_sysfs_show_actual_cpi(struct device *dev,
349 struct device_attribute *attr, char *buf)
350{
351 struct kovaplus_device *kovaplus =
352 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
353 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_cpi);
354}
355
356static ssize_t kovaplus_sysfs_show_actual_sensitivity_x(struct device *dev,
357 struct device_attribute *attr, char *buf)
358{
359 struct kovaplus_device *kovaplus =
360 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
361 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_x_sensitivity);
362}
363
364static ssize_t kovaplus_sysfs_show_actual_sensitivity_y(struct device *dev,
365 struct device_attribute *attr, char *buf)
366{
367 struct kovaplus_device *kovaplus =
368 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
369 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_y_sensitivity);
370}
371
372static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev,
373 struct device_attribute *attr, char *buf)
374{
375 struct kovaplus_device *kovaplus =
376 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
377 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->info.firmware_version);
378}
379
380static struct device_attribute kovaplus_attributes[] = {
381 __ATTR(actual_cpi, 0440,
382 kovaplus_sysfs_show_actual_cpi, NULL),
383 __ATTR(firmware_version, 0440,
384 kovaplus_sysfs_show_firmware_version, NULL),
385 __ATTR(actual_profile, 0660,
386 kovaplus_sysfs_show_actual_profile,
387 kovaplus_sysfs_set_actual_profile),
388 __ATTR(actual_sensitivity_x, 0440,
389 kovaplus_sysfs_show_actual_sensitivity_x, NULL),
390 __ATTR(actual_sensitivity_y, 0440,
391 kovaplus_sysfs_show_actual_sensitivity_y, NULL),
392 __ATTR_NULL
393};
394
395static struct bin_attribute kovaplus_bin_attributes[] = {
396 {
397 .attr = { .name = "profile_settings", .mode = 0220 },
398 .size = sizeof(struct kovaplus_profile_settings),
399 .write = kovaplus_sysfs_write_profile_settings
400 },
401 {
402 .attr = { .name = "profile1_settings", .mode = 0440 },
403 .size = sizeof(struct kovaplus_profile_settings),
404 .read = kovaplus_sysfs_read_profilex_settings,
405 .private = &profile_numbers[0]
406 },
407 {
408 .attr = { .name = "profile2_settings", .mode = 0440 },
409 .size = sizeof(struct kovaplus_profile_settings),
410 .read = kovaplus_sysfs_read_profilex_settings,
411 .private = &profile_numbers[1]
412 },
413 {
414 .attr = { .name = "profile3_settings", .mode = 0440 },
415 .size = sizeof(struct kovaplus_profile_settings),
416 .read = kovaplus_sysfs_read_profilex_settings,
417 .private = &profile_numbers[2]
418 },
419 {
420 .attr = { .name = "profile4_settings", .mode = 0440 },
421 .size = sizeof(struct kovaplus_profile_settings),
422 .read = kovaplus_sysfs_read_profilex_settings,
423 .private = &profile_numbers[3]
424 },
425 {
426 .attr = { .name = "profile5_settings", .mode = 0440 },
427 .size = sizeof(struct kovaplus_profile_settings),
428 .read = kovaplus_sysfs_read_profilex_settings,
429 .private = &profile_numbers[4]
430 },
431 {
432 .attr = { .name = "profile_buttons", .mode = 0220 },
433 .size = sizeof(struct kovaplus_profile_buttons),
434 .write = kovaplus_sysfs_write_profile_buttons
435 },
436 {
437 .attr = { .name = "profile1_buttons", .mode = 0440 },
438 .size = sizeof(struct kovaplus_profile_buttons),
439 .read = kovaplus_sysfs_read_profilex_buttons,
440 .private = &profile_numbers[0]
441 },
442 {
443 .attr = { .name = "profile2_buttons", .mode = 0440 },
444 .size = sizeof(struct kovaplus_profile_buttons),
445 .read = kovaplus_sysfs_read_profilex_buttons,
446 .private = &profile_numbers[1]
447 },
448 {
449 .attr = { .name = "profile3_buttons", .mode = 0440 },
450 .size = sizeof(struct kovaplus_profile_buttons),
451 .read = kovaplus_sysfs_read_profilex_buttons,
452 .private = &profile_numbers[2]
453 },
454 {
455 .attr = { .name = "profile4_buttons", .mode = 0440 },
456 .size = sizeof(struct kovaplus_profile_buttons),
457 .read = kovaplus_sysfs_read_profilex_buttons,
458 .private = &profile_numbers[3]
459 },
460 {
461 .attr = { .name = "profile5_buttons", .mode = 0440 },
462 .size = sizeof(struct kovaplus_profile_buttons),
463 .read = kovaplus_sysfs_read_profilex_buttons,
464 .private = &profile_numbers[4]
465 },
466 __ATTR_NULL
467};
468
469static int kovaplus_init_kovaplus_device_struct(struct usb_device *usb_dev,
470 struct kovaplus_device *kovaplus)
471{
472 int retval, i;
473 static uint wait = 70; /* device will freeze with just 60 */
474
475 mutex_init(&kovaplus->kovaplus_lock);
476
477 retval = kovaplus_get_info(usb_dev, &kovaplus->info);
478 if (retval)
479 return retval;
480
481 for (i = 0; i < 5; ++i) {
482 msleep(wait);
483 retval = kovaplus_get_profile_settings(usb_dev,
484 &kovaplus->profile_settings[i], i);
485 if (retval)
486 return retval;
487
488 msleep(wait);
489 retval = kovaplus_get_profile_buttons(usb_dev,
490 &kovaplus->profile_buttons[i], i);
491 if (retval)
492 return retval;
493 }
494
495 msleep(wait);
496 retval = kovaplus_get_actual_profile(usb_dev);
497 if (retval < 0)
498 return retval;
499 kovaplus_profile_activated(kovaplus, retval);
500
501 return 0;
502}
503
504static int kovaplus_init_specials(struct hid_device *hdev)
505{
506 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
507 struct usb_device *usb_dev = interface_to_usbdev(intf);
508 struct kovaplus_device *kovaplus;
509 int retval;
510
511 if (intf->cur_altsetting->desc.bInterfaceProtocol
512 == USB_INTERFACE_PROTOCOL_MOUSE) {
513
514 kovaplus = kzalloc(sizeof(*kovaplus), GFP_KERNEL);
515 if (!kovaplus) {
516 hid_err(hdev, "can't alloc device descriptor\n");
517 return -ENOMEM;
518 }
519 hid_set_drvdata(hdev, kovaplus);
520
521 retval = kovaplus_init_kovaplus_device_struct(usb_dev, kovaplus);
522 if (retval) {
523 hid_err(hdev, "couldn't init struct kovaplus_device\n");
524 goto exit_free;
525 }
526
527 retval = roccat_connect(kovaplus_class, hdev,
528 sizeof(struct kovaplus_roccat_report));
529 if (retval < 0) {
530 hid_err(hdev, "couldn't init char dev\n");
531 } else {
532 kovaplus->chrdev_minor = retval;
533 kovaplus->roccat_claimed = 1;
534 }
535
536 } else {
537 hid_set_drvdata(hdev, NULL);
538 }
539
540 return 0;
541exit_free:
542 kfree(kovaplus);
543 return retval;
544}
545
546static void kovaplus_remove_specials(struct hid_device *hdev)
547{
548 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
549 struct kovaplus_device *kovaplus;
550
551 if (intf->cur_altsetting->desc.bInterfaceProtocol
552 == USB_INTERFACE_PROTOCOL_MOUSE) {
553 kovaplus = hid_get_drvdata(hdev);
554 if (kovaplus->roccat_claimed)
555 roccat_disconnect(kovaplus->chrdev_minor);
556 kfree(kovaplus);
557 }
558}
559
560static int kovaplus_probe(struct hid_device *hdev,
561 const struct hid_device_id *id)
562{
563 int retval;
564
565 retval = hid_parse(hdev);
566 if (retval) {
567 hid_err(hdev, "parse failed\n");
568 goto exit;
569 }
570
571 retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
572 if (retval) {
573 hid_err(hdev, "hw start failed\n");
574 goto exit;
575 }
576
577 retval = kovaplus_init_specials(hdev);
578 if (retval) {
579 hid_err(hdev, "couldn't install mouse\n");
580 goto exit_stop;
581 }
582
583 return 0;
584
585exit_stop:
586 hid_hw_stop(hdev);
587exit:
588 return retval;
589}
590
591static void kovaplus_remove(struct hid_device *hdev)
592{
593 kovaplus_remove_specials(hdev);
594 hid_hw_stop(hdev);
595}
596
597static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus,
598 u8 const *data)
599{
600 struct kovaplus_mouse_report_button const *button_report;
601
602 if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
603 return;
604
605 button_report = (struct kovaplus_mouse_report_button const *)data;
606
607 switch (button_report->type) {
608 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1:
609 kovaplus_profile_activated(kovaplus, button_report->data1 - 1);
610 break;
611 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI:
612 kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1);
613 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
614 kovaplus->actual_x_sensitivity = button_report->data1;
615 kovaplus->actual_y_sensitivity = button_report->data2;
616 }
617}
618
619static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus,
620 u8 const *data)
621{
622 struct kovaplus_roccat_report roccat_report;
623 struct kovaplus_mouse_report_button const *button_report;
624
625 if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
626 return;
627
628 button_report = (struct kovaplus_mouse_report_button const *)data;
629
630 if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2)
631 return;
632
633 roccat_report.type = button_report->type;
634 roccat_report.profile = kovaplus->actual_profile + 1;
635
636 if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO ||
637 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT ||
638 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
639 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER)
640 roccat_report.button = button_report->data1;
641 else
642 roccat_report.button = 0;
643
644 if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI)
645 roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1);
646 else
647 roccat_report.data1 = button_report->data1;
648
649 roccat_report.data2 = button_report->data2;
650
651 roccat_report_event(kovaplus->chrdev_minor,
652 (uint8_t const *)&roccat_report);
653}
654
655static int kovaplus_raw_event(struct hid_device *hdev,
656 struct hid_report *report, u8 *data, int size)
657{
658 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
659 struct kovaplus_device *kovaplus = hid_get_drvdata(hdev);
660
661 if (intf->cur_altsetting->desc.bInterfaceProtocol
662 != USB_INTERFACE_PROTOCOL_MOUSE)
663 return 0;
664
665 if (kovaplus == NULL)
666 return 0;
667
668 kovaplus_keep_values_up_to_date(kovaplus, data);
669
670 if (kovaplus->roccat_claimed)
671 kovaplus_report_to_chrdev(kovaplus, data);
672
673 return 0;
674}
675
676static const struct hid_device_id kovaplus_devices[] = {
677 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
678 { }
679};
680
681MODULE_DEVICE_TABLE(hid, kovaplus_devices);
682
683static struct hid_driver kovaplus_driver = {
684 .name = "kovaplus",
685 .id_table = kovaplus_devices,
686 .probe = kovaplus_probe,
687 .remove = kovaplus_remove,
688 .raw_event = kovaplus_raw_event
689};
690
691static int __init kovaplus_init(void)
692{
693 int retval;
694
695 kovaplus_class = class_create(THIS_MODULE, "kovaplus");
696 if (IS_ERR(kovaplus_class))
697 return PTR_ERR(kovaplus_class);
698 kovaplus_class->dev_attrs = kovaplus_attributes;
699 kovaplus_class->dev_bin_attrs = kovaplus_bin_attributes;
700
701 retval = hid_register_driver(&kovaplus_driver);
702 if (retval)
703 class_destroy(kovaplus_class);
704 return retval;
705}
706
707static void __exit kovaplus_exit(void)
708{
709 hid_unregister_driver(&kovaplus_driver);
710 class_destroy(kovaplus_class);
711}
712
713module_init(kovaplus_init);
714module_exit(kovaplus_exit);
715
716MODULE_AUTHOR("Stefan Achatz");
717MODULE_DESCRIPTION("USB Roccat Kova[+] driver");
718MODULE_LICENSE("GPL v2");