xref: /linux/drivers/hid/hid-roccat-kovaplus.c (revision c4ee0af3fa0dc65f690fc908f02b8355f9576ea0)
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 
28 static uint profile_numbers[5] = {0, 1, 2, 3, 4};
29 
30 static struct class *kovaplus_class;
31 
32 static uint kovaplus_convert_event_cpi(uint value)
33 {
34 	return (value == 7 ? 4 : (value == 4 ? 3 : value));
35 }
36 
37 static 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 
46 static int kovaplus_send_control(struct usb_device *usb_dev, uint value,
47 		enum kovaplus_control_requests request)
48 {
49 	int retval;
50 	struct roccat_common2_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 = ROCCAT_COMMON_COMMAND_CONTROL;
58 	control.value = value;
59 	control.request = request;
60 
61 	retval = roccat_common2_send(usb_dev, ROCCAT_COMMON_COMMAND_CONTROL,
62 			&control, sizeof(struct roccat_common2_control));
63 
64 	return retval;
65 }
66 
67 static int kovaplus_select_profile(struct usb_device *usb_dev, uint number,
68 		enum kovaplus_control_requests request)
69 {
70 	return kovaplus_send_control(usb_dev, number, request);
71 }
72 
73 static int kovaplus_get_profile_settings(struct usb_device *usb_dev,
74 		struct kovaplus_profile_settings *buf, uint number)
75 {
76 	int retval;
77 
78 	retval = kovaplus_select_profile(usb_dev, number,
79 			KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
80 	if (retval)
81 		return retval;
82 
83 	return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_SETTINGS,
84 			buf, KOVAPLUS_SIZE_PROFILE_SETTINGS);
85 }
86 
87 static int kovaplus_get_profile_buttons(struct usb_device *usb_dev,
88 		struct kovaplus_profile_buttons *buf, int number)
89 {
90 	int retval;
91 
92 	retval = kovaplus_select_profile(usb_dev, number,
93 			KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
94 	if (retval)
95 		return retval;
96 
97 	return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_BUTTONS,
98 			buf, KOVAPLUS_SIZE_PROFILE_BUTTONS);
99 }
100 
101 /* retval is 0-4 on success, < 0 on error */
102 static int kovaplus_get_actual_profile(struct usb_device *usb_dev)
103 {
104 	struct kovaplus_actual_profile buf;
105 	int retval;
106 
107 	retval = roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_ACTUAL_PROFILE,
108 			&buf, sizeof(struct kovaplus_actual_profile));
109 
110 	return retval ? retval : buf.actual_profile;
111 }
112 
113 static int kovaplus_set_actual_profile(struct usb_device *usb_dev,
114 		int new_profile)
115 {
116 	struct kovaplus_actual_profile buf;
117 
118 	buf.command = KOVAPLUS_COMMAND_ACTUAL_PROFILE;
119 	buf.size = sizeof(struct kovaplus_actual_profile);
120 	buf.actual_profile = new_profile;
121 
122 	return roccat_common2_send_with_status(usb_dev,
123 			KOVAPLUS_COMMAND_ACTUAL_PROFILE,
124 			&buf, sizeof(struct kovaplus_actual_profile));
125 }
126 
127 static ssize_t kovaplus_sysfs_read(struct file *fp, struct kobject *kobj,
128 		char *buf, loff_t off, size_t count,
129 		size_t real_size, uint command)
130 {
131 	struct device *dev =
132 			container_of(kobj, struct device, kobj)->parent->parent;
133 	struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
134 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
135 	int retval;
136 
137 	if (off >= real_size)
138 		return 0;
139 
140 	if (off != 0 || count != real_size)
141 		return -EINVAL;
142 
143 	mutex_lock(&kovaplus->kovaplus_lock);
144 	retval = roccat_common2_receive(usb_dev, command, buf, real_size);
145 	mutex_unlock(&kovaplus->kovaplus_lock);
146 
147 	if (retval)
148 		return retval;
149 
150 	return real_size;
151 }
152 
153 static ssize_t kovaplus_sysfs_write(struct file *fp, struct kobject *kobj,
154 		void const *buf, loff_t off, size_t count,
155 		size_t real_size, uint command)
156 {
157 	struct device *dev =
158 			container_of(kobj, struct device, kobj)->parent->parent;
159 	struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
160 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
161 	int retval;
162 
163 	if (off != 0 || count != real_size)
164 		return -EINVAL;
165 
166 	mutex_lock(&kovaplus->kovaplus_lock);
167 	retval = roccat_common2_send_with_status(usb_dev, command,
168 			buf, real_size);
169 	mutex_unlock(&kovaplus->kovaplus_lock);
170 
171 	if (retval)
172 		return retval;
173 
174 	return real_size;
175 }
176 
177 #define KOVAPLUS_SYSFS_W(thingy, THINGY) \
178 static ssize_t kovaplus_sysfs_write_ ## thingy(struct file *fp, \
179 		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
180 		loff_t off, size_t count) \
181 { \
182 	return kovaplus_sysfs_write(fp, kobj, buf, off, count, \
183 			KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
184 }
185 
186 #define KOVAPLUS_SYSFS_R(thingy, THINGY) \
187 static ssize_t kovaplus_sysfs_read_ ## thingy(struct file *fp, \
188 		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
189 		loff_t off, size_t count) \
190 { \
191 	return kovaplus_sysfs_read(fp, kobj, buf, off, count, \
192 			KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
193 }
194 
195 #define KOVAPLUS_SYSFS_RW(thingy, THINGY) \
196 KOVAPLUS_SYSFS_W(thingy, THINGY) \
197 KOVAPLUS_SYSFS_R(thingy, THINGY)
198 
199 #define KOVAPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
200 KOVAPLUS_SYSFS_RW(thingy, THINGY); \
201 static struct bin_attribute bin_attr_##thingy = { \
202 	.attr = { .name = #thingy, .mode = 0660 }, \
203 	.size = KOVAPLUS_SIZE_ ## THINGY, \
204 	.read = kovaplus_sysfs_read_ ## thingy, \
205 	.write = kovaplus_sysfs_write_ ## thingy \
206 }
207 
208 #define KOVAPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
209 KOVAPLUS_SYSFS_W(thingy, THINGY); \
210 static struct bin_attribute bin_attr_##thingy = { \
211 	.attr = { .name = #thingy, .mode = 0220 }, \
212 	.size = KOVAPLUS_SIZE_ ## THINGY, \
213 	.write = kovaplus_sysfs_write_ ## thingy \
214 }
215 KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL);
216 KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO);
217 KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
218 KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);
219 
220 static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
221 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
222 		loff_t off, size_t count)
223 {
224 	struct device *dev =
225 			container_of(kobj, struct device, kobj)->parent->parent;
226 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
227 	ssize_t retval;
228 
229 	retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
230 			KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
231 	if (retval)
232 		return retval;
233 
234 	return kovaplus_sysfs_read(fp, kobj, buf, off, count,
235 			KOVAPLUS_SIZE_PROFILE_SETTINGS,
236 			KOVAPLUS_COMMAND_PROFILE_SETTINGS);
237 }
238 
239 static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,
240 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
241 		loff_t off, size_t count)
242 {
243 	struct device *dev =
244 			container_of(kobj, struct device, kobj)->parent->parent;
245 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
246 	ssize_t retval;
247 
248 	retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
249 			KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
250 	if (retval)
251 		return retval;
252 
253 	return kovaplus_sysfs_read(fp, kobj, buf, off, count,
254 			KOVAPLUS_SIZE_PROFILE_BUTTONS,
255 			KOVAPLUS_COMMAND_PROFILE_BUTTONS);
256 }
257 
258 #define PROFILE_ATTR(number)						\
259 static struct bin_attribute bin_attr_profile##number##_settings = {	\
260 	.attr = { .name = "profile" #number "_settings", .mode = 0440 },	\
261 	.size = KOVAPLUS_SIZE_PROFILE_SETTINGS,				\
262 	.read = kovaplus_sysfs_read_profilex_settings,			\
263 	.private = &profile_numbers[number-1],				\
264 };									\
265 static struct bin_attribute bin_attr_profile##number##_buttons = {	\
266 	.attr = { .name = "profile" #number "_buttons", .mode = 0440 },	\
267 	.size = KOVAPLUS_SIZE_PROFILE_BUTTONS,				\
268 	.read = kovaplus_sysfs_read_profilex_buttons,			\
269 	.private = &profile_numbers[number-1],				\
270 };
271 PROFILE_ATTR(1);
272 PROFILE_ATTR(2);
273 PROFILE_ATTR(3);
274 PROFILE_ATTR(4);
275 PROFILE_ATTR(5);
276 
277 static ssize_t kovaplus_sysfs_show_actual_profile(struct device *dev,
278 		struct device_attribute *attr, char *buf)
279 {
280 	struct kovaplus_device *kovaplus =
281 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
282 	return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_profile);
283 }
284 
285 static ssize_t kovaplus_sysfs_set_actual_profile(struct device *dev,
286 		struct device_attribute *attr, char const *buf, size_t size)
287 {
288 	struct kovaplus_device *kovaplus;
289 	struct usb_device *usb_dev;
290 	unsigned long profile;
291 	int retval;
292 	struct kovaplus_roccat_report roccat_report;
293 
294 	dev = dev->parent->parent;
295 	kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
296 	usb_dev = interface_to_usbdev(to_usb_interface(dev));
297 
298 	retval = kstrtoul(buf, 10, &profile);
299 	if (retval)
300 		return retval;
301 
302 	if (profile >= 5)
303 		return -EINVAL;
304 
305 	mutex_lock(&kovaplus->kovaplus_lock);
306 	retval = kovaplus_set_actual_profile(usb_dev, profile);
307 	if (retval) {
308 		mutex_unlock(&kovaplus->kovaplus_lock);
309 		return retval;
310 	}
311 
312 	kovaplus_profile_activated(kovaplus, profile);
313 
314 	roccat_report.type = KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1;
315 	roccat_report.profile = profile + 1;
316 	roccat_report.button = 0;
317 	roccat_report.data1 = profile + 1;
318 	roccat_report.data2 = 0;
319 	roccat_report_event(kovaplus->chrdev_minor,
320 			(uint8_t const *)&roccat_report);
321 
322 	mutex_unlock(&kovaplus->kovaplus_lock);
323 
324 	return size;
325 }
326 static DEVICE_ATTR(actual_profile, 0660,
327 		   kovaplus_sysfs_show_actual_profile,
328 		   kovaplus_sysfs_set_actual_profile);
329 
330 static ssize_t kovaplus_sysfs_show_actual_cpi(struct device *dev,
331 		struct device_attribute *attr, char *buf)
332 {
333 	struct kovaplus_device *kovaplus =
334 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
335 	return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_cpi);
336 }
337 static DEVICE_ATTR(actual_cpi, 0440, kovaplus_sysfs_show_actual_cpi, NULL);
338 
339 static ssize_t kovaplus_sysfs_show_actual_sensitivity_x(struct device *dev,
340 		struct device_attribute *attr, char *buf)
341 {
342 	struct kovaplus_device *kovaplus =
343 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
344 	return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_x_sensitivity);
345 }
346 static DEVICE_ATTR(actual_sensitivity_x, 0440,
347 		   kovaplus_sysfs_show_actual_sensitivity_x, NULL);
348 
349 static ssize_t kovaplus_sysfs_show_actual_sensitivity_y(struct device *dev,
350 		struct device_attribute *attr, char *buf)
351 {
352 	struct kovaplus_device *kovaplus =
353 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
354 	return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_y_sensitivity);
355 }
356 static DEVICE_ATTR(actual_sensitivity_y, 0440,
357 		   kovaplus_sysfs_show_actual_sensitivity_y, NULL);
358 
359 static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev,
360 		struct device_attribute *attr, char *buf)
361 {
362 	struct kovaplus_device *kovaplus;
363 	struct usb_device *usb_dev;
364 	struct kovaplus_info info;
365 
366 	dev = dev->parent->parent;
367 	kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
368 	usb_dev = interface_to_usbdev(to_usb_interface(dev));
369 
370 	mutex_lock(&kovaplus->kovaplus_lock);
371 	roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
372 			&info, KOVAPLUS_SIZE_INFO);
373 	mutex_unlock(&kovaplus->kovaplus_lock);
374 
375 	return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
376 }
377 static DEVICE_ATTR(firmware_version, 0440,
378 		   kovaplus_sysfs_show_firmware_version, NULL);
379 
380 static struct attribute *kovaplus_attrs[] = {
381 	&dev_attr_actual_cpi.attr,
382 	&dev_attr_firmware_version.attr,
383 	&dev_attr_actual_profile.attr,
384 	&dev_attr_actual_sensitivity_x.attr,
385 	&dev_attr_actual_sensitivity_y.attr,
386 	NULL,
387 };
388 
389 static struct bin_attribute *kovaplus_bin_attributes[] = {
390 	&bin_attr_control,
391 	&bin_attr_info,
392 	&bin_attr_profile_settings,
393 	&bin_attr_profile_buttons,
394 	&bin_attr_profile1_settings,
395 	&bin_attr_profile2_settings,
396 	&bin_attr_profile3_settings,
397 	&bin_attr_profile4_settings,
398 	&bin_attr_profile5_settings,
399 	&bin_attr_profile1_buttons,
400 	&bin_attr_profile2_buttons,
401 	&bin_attr_profile3_buttons,
402 	&bin_attr_profile4_buttons,
403 	&bin_attr_profile5_buttons,
404 	NULL,
405 };
406 
407 static const struct attribute_group kovaplus_group = {
408 	.attrs = kovaplus_attrs,
409 	.bin_attrs = kovaplus_bin_attributes,
410 };
411 
412 static const struct attribute_group *kovaplus_groups[] = {
413 	&kovaplus_group,
414 	NULL,
415 };
416 
417 static int kovaplus_init_kovaplus_device_struct(struct usb_device *usb_dev,
418 		struct kovaplus_device *kovaplus)
419 {
420 	int retval, i;
421 	static uint wait = 70; /* device will freeze with just 60 */
422 
423 	mutex_init(&kovaplus->kovaplus_lock);
424 
425 	for (i = 0; i < 5; ++i) {
426 		msleep(wait);
427 		retval = kovaplus_get_profile_settings(usb_dev,
428 				&kovaplus->profile_settings[i], i);
429 		if (retval)
430 			return retval;
431 
432 		msleep(wait);
433 		retval = kovaplus_get_profile_buttons(usb_dev,
434 				&kovaplus->profile_buttons[i], i);
435 		if (retval)
436 			return retval;
437 	}
438 
439 	msleep(wait);
440 	retval = kovaplus_get_actual_profile(usb_dev);
441 	if (retval < 0)
442 		return retval;
443 	kovaplus_profile_activated(kovaplus, retval);
444 
445 	return 0;
446 }
447 
448 static int kovaplus_init_specials(struct hid_device *hdev)
449 {
450 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
451 	struct usb_device *usb_dev = interface_to_usbdev(intf);
452 	struct kovaplus_device *kovaplus;
453 	int retval;
454 
455 	if (intf->cur_altsetting->desc.bInterfaceProtocol
456 			== USB_INTERFACE_PROTOCOL_MOUSE) {
457 
458 		kovaplus = kzalloc(sizeof(*kovaplus), GFP_KERNEL);
459 		if (!kovaplus) {
460 			hid_err(hdev, "can't alloc device descriptor\n");
461 			return -ENOMEM;
462 		}
463 		hid_set_drvdata(hdev, kovaplus);
464 
465 		retval = kovaplus_init_kovaplus_device_struct(usb_dev, kovaplus);
466 		if (retval) {
467 			hid_err(hdev, "couldn't init struct kovaplus_device\n");
468 			goto exit_free;
469 		}
470 
471 		retval = roccat_connect(kovaplus_class, hdev,
472 				sizeof(struct kovaplus_roccat_report));
473 		if (retval < 0) {
474 			hid_err(hdev, "couldn't init char dev\n");
475 		} else {
476 			kovaplus->chrdev_minor = retval;
477 			kovaplus->roccat_claimed = 1;
478 		}
479 
480 	} else {
481 		hid_set_drvdata(hdev, NULL);
482 	}
483 
484 	return 0;
485 exit_free:
486 	kfree(kovaplus);
487 	return retval;
488 }
489 
490 static void kovaplus_remove_specials(struct hid_device *hdev)
491 {
492 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
493 	struct kovaplus_device *kovaplus;
494 
495 	if (intf->cur_altsetting->desc.bInterfaceProtocol
496 			== USB_INTERFACE_PROTOCOL_MOUSE) {
497 		kovaplus = hid_get_drvdata(hdev);
498 		if (kovaplus->roccat_claimed)
499 			roccat_disconnect(kovaplus->chrdev_minor);
500 		kfree(kovaplus);
501 	}
502 }
503 
504 static int kovaplus_probe(struct hid_device *hdev,
505 		const struct hid_device_id *id)
506 {
507 	int retval;
508 
509 	retval = hid_parse(hdev);
510 	if (retval) {
511 		hid_err(hdev, "parse failed\n");
512 		goto exit;
513 	}
514 
515 	retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
516 	if (retval) {
517 		hid_err(hdev, "hw start failed\n");
518 		goto exit;
519 	}
520 
521 	retval = kovaplus_init_specials(hdev);
522 	if (retval) {
523 		hid_err(hdev, "couldn't install mouse\n");
524 		goto exit_stop;
525 	}
526 
527 	return 0;
528 
529 exit_stop:
530 	hid_hw_stop(hdev);
531 exit:
532 	return retval;
533 }
534 
535 static void kovaplus_remove(struct hid_device *hdev)
536 {
537 	kovaplus_remove_specials(hdev);
538 	hid_hw_stop(hdev);
539 }
540 
541 static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus,
542 		u8 const *data)
543 {
544 	struct kovaplus_mouse_report_button const *button_report;
545 
546 	if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
547 		return;
548 
549 	button_report = (struct kovaplus_mouse_report_button const *)data;
550 
551 	switch (button_report->type) {
552 	case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1:
553 		kovaplus_profile_activated(kovaplus, button_report->data1 - 1);
554 		break;
555 	case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI:
556 		kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1);
557 		break;
558 	case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
559 		kovaplus->actual_x_sensitivity = button_report->data1;
560 		kovaplus->actual_y_sensitivity = button_report->data2;
561 		break;
562 	default:
563 		break;
564 	}
565 }
566 
567 static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus,
568 		u8 const *data)
569 {
570 	struct kovaplus_roccat_report roccat_report;
571 	struct kovaplus_mouse_report_button const *button_report;
572 
573 	if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
574 		return;
575 
576 	button_report = (struct kovaplus_mouse_report_button const *)data;
577 
578 	if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2)
579 		return;
580 
581 	roccat_report.type = button_report->type;
582 	roccat_report.profile = kovaplus->actual_profile + 1;
583 
584 	if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO ||
585 			roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT ||
586 			roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
587 			roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER)
588 		roccat_report.button = button_report->data1;
589 	else
590 		roccat_report.button = 0;
591 
592 	if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI)
593 		roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1);
594 	else
595 		roccat_report.data1 = button_report->data1;
596 
597 	roccat_report.data2 = button_report->data2;
598 
599 	roccat_report_event(kovaplus->chrdev_minor,
600 			(uint8_t const *)&roccat_report);
601 }
602 
603 static int kovaplus_raw_event(struct hid_device *hdev,
604 		struct hid_report *report, u8 *data, int size)
605 {
606 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
607 	struct kovaplus_device *kovaplus = hid_get_drvdata(hdev);
608 
609 	if (intf->cur_altsetting->desc.bInterfaceProtocol
610 			!= USB_INTERFACE_PROTOCOL_MOUSE)
611 		return 0;
612 
613 	if (kovaplus == NULL)
614 		return 0;
615 
616 	kovaplus_keep_values_up_to_date(kovaplus, data);
617 
618 	if (kovaplus->roccat_claimed)
619 		kovaplus_report_to_chrdev(kovaplus, data);
620 
621 	return 0;
622 }
623 
624 static const struct hid_device_id kovaplus_devices[] = {
625 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
626 	{ }
627 };
628 
629 MODULE_DEVICE_TABLE(hid, kovaplus_devices);
630 
631 static struct hid_driver kovaplus_driver = {
632 		.name = "kovaplus",
633 		.id_table = kovaplus_devices,
634 		.probe = kovaplus_probe,
635 		.remove = kovaplus_remove,
636 		.raw_event = kovaplus_raw_event
637 };
638 
639 static int __init kovaplus_init(void)
640 {
641 	int retval;
642 
643 	kovaplus_class = class_create(THIS_MODULE, "kovaplus");
644 	if (IS_ERR(kovaplus_class))
645 		return PTR_ERR(kovaplus_class);
646 	kovaplus_class->dev_groups = kovaplus_groups;
647 
648 	retval = hid_register_driver(&kovaplus_driver);
649 	if (retval)
650 		class_destroy(kovaplus_class);
651 	return retval;
652 }
653 
654 static void __exit kovaplus_exit(void)
655 {
656 	hid_unregister_driver(&kovaplus_driver);
657 	class_destroy(kovaplus_class);
658 }
659 
660 module_init(kovaplus_init);
661 module_exit(kovaplus_exit);
662 
663 MODULE_AUTHOR("Stefan Achatz");
664 MODULE_DESCRIPTION("USB Roccat Kova[+] driver");
665 MODULE_LICENSE("GPL v2");
666