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
25 static uint profile_numbers[5] = {0, 1, 2, 3, 4};
26
kovaplus_convert_event_cpi(uint value)27 static uint kovaplus_convert_event_cpi(uint value)
28 {
29 return (value == 7 ? 4 : (value == 4 ? 3 : value));
30 }
31
kovaplus_profile_activated(struct kovaplus_device * kovaplus,uint new_profile_index)32 static 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
kovaplus_send_control(struct usb_device * usb_dev,uint value,enum kovaplus_control_requests request)43 static 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
kovaplus_select_profile(struct usb_device * usb_dev,uint number,enum kovaplus_control_requests request)64 static 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
kovaplus_get_profile_settings(struct usb_device * usb_dev,struct kovaplus_profile_settings * buf,uint number)70 static 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
kovaplus_get_profile_buttons(struct usb_device * usb_dev,struct kovaplus_profile_buttons * buf,int number)84 static 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 */
kovaplus_get_actual_profile(struct usb_device * usb_dev)99 static 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
kovaplus_set_actual_profile(struct usb_device * usb_dev,int new_profile)110 static 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
kovaplus_sysfs_read(struct file * fp,struct kobject * kobj,char * buf,loff_t off,size_t count,size_t real_size,uint command)124 static 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
kovaplus_sysfs_write(struct file * fp,struct kobject * kobj,void const * buf,loff_t off,size_t count,size_t real_size,uint command)149 static 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) \
173 static 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) \
182 static 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) \
191 KOVAPLUS_SYSFS_W(thingy, THINGY) \
192 KOVAPLUS_SYSFS_R(thingy, THINGY)
193
194 #define KOVAPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
195 KOVAPLUS_SYSFS_RW(thingy, THINGY); \
196 static 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) \
204 KOVAPLUS_SYSFS_W(thingy, THINGY); \
205 static struct bin_attribute bin_attr_##thingy = { \
206 .attr = { .name = #thingy, .mode = 0220 }, \
207 .size = KOVAPLUS_SIZE_ ## THINGY, \
208 .write = kovaplus_sysfs_write_ ## thingy \
209 }
210 KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL);
211 KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO);
212 KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
213 KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);
214
kovaplus_sysfs_read_profilex_settings(struct file * fp,struct kobject * kobj,struct bin_attribute * attr,char * buf,loff_t off,size_t count)215 static 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
kovaplus_sysfs_read_profilex_buttons(struct file * fp,struct kobject * kobj,struct bin_attribute * attr,char * buf,loff_t off,size_t count)233 static 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) \
252 static 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 }; \
258 static 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 };
264 PROFILE_ATTR(1);
265 PROFILE_ATTR(2);
266 PROFILE_ATTR(3);
267 PROFILE_ATTR(4);
268 PROFILE_ATTR(5);
269
kovaplus_sysfs_show_actual_profile(struct device * dev,struct device_attribute * attr,char * buf)270 static 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
kovaplus_sysfs_set_actual_profile(struct device * dev,struct device_attribute * attr,char const * buf,size_t size)278 static 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 }
319 static DEVICE_ATTR(actual_profile, 0660,
320 kovaplus_sysfs_show_actual_profile,
321 kovaplus_sysfs_set_actual_profile);
322
kovaplus_sysfs_show_actual_cpi(struct device * dev,struct device_attribute * attr,char * buf)323 static 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 }
330 static DEVICE_ATTR(actual_cpi, 0440, kovaplus_sysfs_show_actual_cpi, NULL);
331
kovaplus_sysfs_show_actual_sensitivity_x(struct device * dev,struct device_attribute * attr,char * buf)332 static 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 }
339 static DEVICE_ATTR(actual_sensitivity_x, 0440,
340 kovaplus_sysfs_show_actual_sensitivity_x, NULL);
341
kovaplus_sysfs_show_actual_sensitivity_y(struct device * dev,struct device_attribute * attr,char * buf)342 static 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 }
349 static DEVICE_ATTR(actual_sensitivity_y, 0440,
350 kovaplus_sysfs_show_actual_sensitivity_y, NULL);
351
kovaplus_sysfs_show_firmware_version(struct device * dev,struct device_attribute * attr,char * buf)352 static 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 }
370 static DEVICE_ATTR(firmware_version, 0440,
371 kovaplus_sysfs_show_firmware_version, NULL);
372
373 static 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
382 static 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
400 static const struct attribute_group kovaplus_group = {
401 .attrs = kovaplus_attrs,
402 .bin_attrs = kovaplus_bin_attributes,
403 };
404
405 static const struct attribute_group *kovaplus_groups[] = {
406 &kovaplus_group,
407 NULL,
408 };
409
410 static const struct class kovaplus_class = {
411 .name = "kovaplus",
412 .dev_groups = kovaplus_groups,
413 };
414
kovaplus_init_kovaplus_device_struct(struct usb_device * usb_dev,struct kovaplus_device * kovaplus)415 static 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
kovaplus_init_specials(struct hid_device * hdev)446 static 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;
483 exit_free:
484 kfree(kovaplus);
485 return retval;
486 }
487
kovaplus_remove_specials(struct hid_device * hdev)488 static 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
kovaplus_probe(struct hid_device * hdev,const struct hid_device_id * id)502 static 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
530 exit_stop:
531 hid_hw_stop(hdev);
532 exit:
533 return retval;
534 }
535
kovaplus_remove(struct hid_device * hdev)536 static void kovaplus_remove(struct hid_device *hdev)
537 {
538 kovaplus_remove_specials(hdev);
539 hid_hw_stop(hdev);
540 }
541
kovaplus_keep_values_up_to_date(struct kovaplus_device * kovaplus,u8 const * data)542 static 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
kovaplus_report_to_chrdev(struct kovaplus_device const * kovaplus,u8 const * data)568 static 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
kovaplus_raw_event(struct hid_device * hdev,struct hid_report * report,u8 * data,int size)604 static 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
625 static const struct hid_device_id kovaplus_devices[] = {
626 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
627 { }
628 };
629
630 MODULE_DEVICE_TABLE(hid, kovaplus_devices);
631
632 static 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
kovaplus_init(void)640 static 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
kovaplus_exit(void)654 static void __exit kovaplus_exit(void)
655 {
656 hid_unregister_driver(&kovaplus_driver);
657 class_unregister(&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