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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
[linux-2.6-block.git] / drivers / hid / hid-roccat-kovaplus.c
CommitLineData
0e70f97f
SA		 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>
5dc0c983 23#include <linux/hid-roccat.h>
0e70f97f 24#include "hid-ids.h"
0e70f97f
SA		 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;
7392d73b 50 struct roccat_common2_control control;
0e70f97f
SA		 51
52 if ((request == KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
53 request == KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
54 value > 4)
55 return -EINVAL;
56
4728f2dc 57 control.command = ROCCAT_COMMON_COMMAND_CONTROL;
0e70f97f
SA		 58 control.value = value;
59 control.request = request;
60
7392d73b
SA		 61 retval = roccat_common2_send(usb_dev, ROCCAT_COMMON_COMMAND_CONTROL,
62 &control, sizeof(struct roccat_common2_control));
0e70f97f
SA		 63
64 return retval;
65}
66
0e70f97f
SA		 67static 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
0e70f97f
SA		 73static 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
7392d73b 83 return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_SETTINGS,
94a8fcf9 84 buf, KOVAPLUS_SIZE_PROFILE_SETTINGS);
0e70f97f
SA		 85}
86
87static 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
7392d73b 97 return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_BUTTONS,
94a8fcf9 98 buf, KOVAPLUS_SIZE_PROFILE_BUTTONS);
0e70f97f
SA		 99}
100
101/* retval is 0-4 on success, < 0 on error */
102static int kovaplus_get_actual_profile(struct usb_device *usb_dev)
103{
104 struct kovaplus_actual_profile buf;
105 int retval;
106
7392d73b 107 retval = roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_ACTUAL_PROFILE,
0e70f97f
SA		 108 &buf, sizeof(struct kovaplus_actual_profile));
109
110 return retval ? retval : buf.actual_profile;
111}
112
113static 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
7392d73b 122 return roccat_common2_send_with_status(usb_dev,
4728f2dc 123 KOVAPLUS_COMMAND_ACTUAL_PROFILE,
0e70f97f
SA		 124 &buf, sizeof(struct kovaplus_actual_profile));
125}
126
94a8fcf9
SA		 127static 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)
0e70f97f
SA		 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));
94a8fcf9
SA		 134 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
135 int retval;
0e70f97f 136
94a8fcf9 137 if (off >= real_size)
0e70f97f
SA		 138 return 0;
139
94a8fcf9
SA		 140 if (off != 0 || count != real_size)
141 return -EINVAL;
0e70f97f
SA		 142
143 mutex_lock(&kovaplus->kovaplus_lock);
94a8fcf9 144 retval = roccat_common2_receive(usb_dev, command, buf, real_size);
0e70f97f
SA		 145 mutex_unlock(&kovaplus->kovaplus_lock);
146
94a8fcf9
SA		 147 if (retval)
148 return retval;
149
150 return real_size;
0e70f97f
SA		 151}
152
94a8fcf9
SA		 153static 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)
0e70f97f
SA		 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));
94a8fcf9 161 int retval;
0e70f97f 162
94a8fcf9 163 if (off != 0 || count != real_size)
0e70f97f
SA		 164 return -EINVAL;
165
0e70f97f 166 mutex_lock(&kovaplus->kovaplus_lock);
94a8fcf9
SA		 167 retval = roccat_common2_send_with_status(usb_dev, command,
168 buf, real_size);
0e70f97f
SA		 169 mutex_unlock(&kovaplus->kovaplus_lock);
170
171 if (retval)
172 return retval;
173
94a8fcf9 174 return real_size;
0e70f97f
SA		 175}
176
94a8fcf9
SA		 177#define KOVAPLUS_SYSFS_W(thingy, THINGY) \
178static 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}
0e70f97f 185
94a8fcf9
SA		 186#define KOVAPLUS_SYSFS_R(thingy, THINGY) \
187static 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}
0e70f97f 194
94a8fcf9
SA		 195#define KOVAPLUS_SYSFS_RW(thingy, THINGY) \
196KOVAPLUS_SYSFS_W(thingy, THINGY) \
197KOVAPLUS_SYSFS_R(thingy, THINGY)
0e70f97f 198
94a8fcf9
SA		 199#define KOVAPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
200{ \
201 .attr = { .name = #thingy, .mode = 0660 }, \
202 .size = KOVAPLUS_SIZE_ ## THINGY, \
203 .read = kovaplus_sysfs_read_ ## thingy, \
204 .write = kovaplus_sysfs_write_ ## thingy \
205}
206
207#define KOVAPLUS_BIN_ATTRIBUTE_R(thingy, THINGY) \
208{ \
209 .attr = { .name = #thingy, .mode = 0440 }, \
210 .size = KOVAPLUS_SIZE_ ## THINGY, \
211 .read = kovaplus_sysfs_read_ ## thingy, \
212}
0e70f97f 213
94a8fcf9
SA		 214#define KOVAPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
215{ \
216 .attr = { .name = #thingy, .mode = 0220 }, \
217 .size = KOVAPLUS_SIZE_ ## THINGY, \
218 .write = kovaplus_sysfs_write_ ## thingy \
0e70f97f
SA		 219}
220
172e2abc 221KOVAPLUS_SYSFS_W(control, CONTROL)
94a8fcf9 222KOVAPLUS_SYSFS_RW(info, INFO)
172e2abc
SA		 223KOVAPLUS_SYSFS_RW(profile_settings, PROFILE_SETTINGS)
224KOVAPLUS_SYSFS_RW(profile_buttons, PROFILE_BUTTONS)
94a8fcf9
SA		 225
226static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
0e70f97f
SA		 227 struct kobject *kobj, struct bin_attribute *attr, char *buf,
228 loff_t off, size_t count)
229{
230 struct device *dev =
231 container_of(kobj, struct device, kobj)->parent->parent;
0e70f97f 232 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
94a8fcf9 233 ssize_t retval;
0e70f97f 234
94a8fcf9
SA		 235 retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
236 KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
237 if (retval)
238 return retval;
0e70f97f 239
94a8fcf9
SA		 240 return kovaplus_sysfs_read(fp, kobj, buf, off, count,
241 KOVAPLUS_SIZE_PROFILE_SETTINGS,
242 KOVAPLUS_COMMAND_PROFILE_SETTINGS);
243}
0e70f97f 244
94a8fcf9
SA		 245static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,
246 struct kobject *kobj, struct bin_attribute *attr, char *buf,
247 loff_t off, size_t count)
248{
249 struct device *dev =
250 container_of(kobj, struct device, kobj)->parent->parent;
251 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
252 ssize_t retval;
0e70f97f 253
94a8fcf9
SA		 254 retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
255 KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
0e70f97f
SA		 256 if (retval)
257 return retval;
258
94a8fcf9
SA		 259 return kovaplus_sysfs_read(fp, kobj, buf, off, count,
260 KOVAPLUS_SIZE_PROFILE_BUTTONS,
261 KOVAPLUS_COMMAND_PROFILE_BUTTONS);
0e70f97f
SA		 262}
263
264static ssize_t kovaplus_sysfs_show_actual_profile(struct device *dev,
265 struct device_attribute *attr, char *buf)
266{
267 struct kovaplus_device *kovaplus =
268 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
269 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_profile);
270}
271
272static ssize_t kovaplus_sysfs_set_actual_profile(struct device *dev,
273 struct device_attribute *attr, char const *buf, size_t size)
274{
275 struct kovaplus_device *kovaplus;
276 struct usb_device *usb_dev;
277 unsigned long profile;
278 int retval;
6b9a57b9 279 struct kovaplus_roccat_report roccat_report;
0e70f97f
SA		 280
281 dev = dev->parent->parent;
282 kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
283 usb_dev = interface_to_usbdev(to_usb_interface(dev));
284
285 retval = strict_strtoul(buf, 10, &profile);
286 if (retval)
287 return retval;
288
289 if (profile >= 5)
290 return -EINVAL;
291
292 mutex_lock(&kovaplus->kovaplus_lock);
293 retval = kovaplus_set_actual_profile(usb_dev, profile);
6b9a57b9
SA		 294 if (retval) {
295 mutex_unlock(&kovaplus->kovaplus_lock);
296 return retval;
297 }
298
901e64db 299 kovaplus_profile_activated(kovaplus, profile);
6b9a57b9
SA		 300
301 roccat_report.type = KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1;
302 roccat_report.profile = profile + 1;
303 roccat_report.button = 0;
304 roccat_report.data1 = profile + 1;
305 roccat_report.data2 = 0;
306 roccat_report_event(kovaplus->chrdev_minor,
307 (uint8_t const *)&roccat_report);
308
0e70f97f 309 mutex_unlock(&kovaplus->kovaplus_lock);
0e70f97f
SA		 310
311 return size;
312}
313
314static ssize_t kovaplus_sysfs_show_actual_cpi(struct device *dev,
315 struct device_attribute *attr, char *buf)
316{
317 struct kovaplus_device *kovaplus =
318 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
319 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_cpi);
320}
321
322static ssize_t kovaplus_sysfs_show_actual_sensitivity_x(struct device *dev,
323 struct device_attribute *attr, char *buf)
324{
325 struct kovaplus_device *kovaplus =
326 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
327 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_x_sensitivity);
328}
329
330static ssize_t kovaplus_sysfs_show_actual_sensitivity_y(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_y_sensitivity);
336}
337
338static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev,
339 struct device_attribute *attr, char *buf)
340{
94a8fcf9
SA		 341 struct kovaplus_device *kovaplus;
342 struct usb_device *usb_dev;
343 struct kovaplus_info info;
344
345 dev = dev->parent->parent;
346 kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
347 usb_dev = interface_to_usbdev(to_usb_interface(dev));
348
349 mutex_lock(&kovaplus->kovaplus_lock);
350 roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
351 &info, KOVAPLUS_SIZE_INFO);
352 mutex_unlock(&kovaplus->kovaplus_lock);
353
354 return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
0e70f97f
SA		 355}
356
357static struct device_attribute kovaplus_attributes[] = {
358 __ATTR(actual_cpi, 0440,
359 kovaplus_sysfs_show_actual_cpi, NULL),
360 __ATTR(firmware_version, 0440,
361 kovaplus_sysfs_show_firmware_version, NULL),
362 __ATTR(actual_profile, 0660,
363 kovaplus_sysfs_show_actual_profile,
364 kovaplus_sysfs_set_actual_profile),
365 __ATTR(actual_sensitivity_x, 0440,
366 kovaplus_sysfs_show_actual_sensitivity_x, NULL),
367 __ATTR(actual_sensitivity_y, 0440,
368 kovaplus_sysfs_show_actual_sensitivity_y, NULL),
369 __ATTR_NULL
370};
371
372static struct bin_attribute kovaplus_bin_attributes[] = {
172e2abc 373 KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL),
94a8fcf9 374 KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO),
172e2abc
SA		 375 KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS),
376 KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS),
0e70f97f
SA		 377 {
378 .attr = { .name = "profile1_settings", .mode = 0440 },
94a8fcf9 379 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
0e70f97f
SA		 380 .read = kovaplus_sysfs_read_profilex_settings,
381 .private = &profile_numbers[0]
382 },
383 {
384 .attr = { .name = "profile2_settings", .mode = 0440 },
94a8fcf9 385 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
0e70f97f
SA		 386 .read = kovaplus_sysfs_read_profilex_settings,
387 .private = &profile_numbers[1]
388 },
389 {
390 .attr = { .name = "profile3_settings", .mode = 0440 },
94a8fcf9 391 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
0e70f97f
SA		 392 .read = kovaplus_sysfs_read_profilex_settings,
393 .private = &profile_numbers[2]
394 },
395 {
396 .attr = { .name = "profile4_settings", .mode = 0440 },
94a8fcf9 397 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
0e70f97f
SA		 398 .read = kovaplus_sysfs_read_profilex_settings,
399 .private = &profile_numbers[3]
400 },
401 {
402 .attr = { .name = "profile5_settings", .mode = 0440 },
94a8fcf9 403 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
0e70f97f
SA		 404 .read = kovaplus_sysfs_read_profilex_settings,
405 .private = &profile_numbers[4]
406 },
0e70f97f
SA		 407 {
408 .attr = { .name = "profile1_buttons", .mode = 0440 },
94a8fcf9 409 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
0e70f97f
SA		 410 .read = kovaplus_sysfs_read_profilex_buttons,
411 .private = &profile_numbers[0]
412 },
413 {
414 .attr = { .name = "profile2_buttons", .mode = 0440 },
94a8fcf9 415 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
0e70f97f
SA		 416 .read = kovaplus_sysfs_read_profilex_buttons,
417 .private = &profile_numbers[1]
418 },
419 {
420 .attr = { .name = "profile3_buttons", .mode = 0440 },
94a8fcf9 421 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
0e70f97f
SA		 422 .read = kovaplus_sysfs_read_profilex_buttons,
423 .private = &profile_numbers[2]
424 },
425 {
426 .attr = { .name = "profile4_buttons", .mode = 0440 },
94a8fcf9 427 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
0e70f97f
SA		 428 .read = kovaplus_sysfs_read_profilex_buttons,
429 .private = &profile_numbers[3]
430 },
431 {
432 .attr = { .name = "profile5_buttons", .mode = 0440 },
94a8fcf9 433 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
0e70f97f
SA		 434 .read = kovaplus_sysfs_read_profilex_buttons,
435 .private = &profile_numbers[4]
436 },
437 __ATTR_NULL
438};
439
440static int kovaplus_init_kovaplus_device_struct(struct usb_device *usb_dev,
441 struct kovaplus_device *kovaplus)
442{
443 int retval, i;
444 static uint wait = 70; /* device will freeze with just 60 */
445
446 mutex_init(&kovaplus->kovaplus_lock);
447
0e70f97f
SA		 448 for (i = 0; i < 5; ++i) {
449 msleep(wait);
450 retval = kovaplus_get_profile_settings(usb_dev,
451 &kovaplus->profile_settings[i], i);
452 if (retval)
453 return retval;
454
455 msleep(wait);
456 retval = kovaplus_get_profile_buttons(usb_dev,
457 &kovaplus->profile_buttons[i], i);
458 if (retval)
459 return retval;
460 }
461
462 msleep(wait);
463 retval = kovaplus_get_actual_profile(usb_dev);
464 if (retval < 0)
465 return retval;
466 kovaplus_profile_activated(kovaplus, retval);
467
468 return 0;
469}
470
471static int kovaplus_init_specials(struct hid_device *hdev)
472{
473 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
474 struct usb_device *usb_dev = interface_to_usbdev(intf);
475 struct kovaplus_device *kovaplus;
476 int retval;
477
478 if (intf->cur_altsetting->desc.bInterfaceProtocol
479 == USB_INTERFACE_PROTOCOL_MOUSE) {
480
481 kovaplus = kzalloc(sizeof(*kovaplus), GFP_KERNEL);
482 if (!kovaplus) {
483 hid_err(hdev, "can't alloc device descriptor\n");
484 return -ENOMEM;
485 }
486 hid_set_drvdata(hdev, kovaplus);
487
488 retval = kovaplus_init_kovaplus_device_struct(usb_dev, kovaplus);
489 if (retval) {
490 hid_err(hdev, "couldn't init struct kovaplus_device\n");
491 goto exit_free;
492 }
493
8211e460
SA		 494 retval = roccat_connect(kovaplus_class, hdev,
495 sizeof(struct kovaplus_roccat_report));
0e70f97f
SA		 496 if (retval < 0) {
497 hid_err(hdev, "couldn't init char dev\n");
498 } else {
499 kovaplus->chrdev_minor = retval;
500 kovaplus->roccat_claimed = 1;
501 }
502
503 } else {
504 hid_set_drvdata(hdev, NULL);
505 }
506
507 return 0;
508exit_free:
509 kfree(kovaplus);
510 return retval;
511}
512
513static void kovaplus_remove_specials(struct hid_device *hdev)
514{
515 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
516 struct kovaplus_device *kovaplus;
517
518 if (intf->cur_altsetting->desc.bInterfaceProtocol
519 == USB_INTERFACE_PROTOCOL_MOUSE) {
520 kovaplus = hid_get_drvdata(hdev);
521 if (kovaplus->roccat_claimed)
522 roccat_disconnect(kovaplus->chrdev_minor);
523 kfree(kovaplus);
524 }
525}
526
527static int kovaplus_probe(struct hid_device *hdev,
528 const struct hid_device_id *id)
529{
530 int retval;
531
532 retval = hid_parse(hdev);
533 if (retval) {
534 hid_err(hdev, "parse failed\n");
535 goto exit;
536 }
537
538 retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
539 if (retval) {
540 hid_err(hdev, "hw start failed\n");
541 goto exit;
542 }
543
544 retval = kovaplus_init_specials(hdev);
545 if (retval) {
546 hid_err(hdev, "couldn't install mouse\n");
547 goto exit_stop;
548 }
549
550 return 0;
551
552exit_stop:
553 hid_hw_stop(hdev);
554exit:
555 return retval;
556}
557
558static void kovaplus_remove(struct hid_device *hdev)
559{
560 kovaplus_remove_specials(hdev);
561 hid_hw_stop(hdev);
562}
563
564static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus,
565 u8 const *data)
566{
567 struct kovaplus_mouse_report_button const *button_report;
568
569 if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
570 return;
571
572 button_report = (struct kovaplus_mouse_report_button const *)data;
573
574 switch (button_report->type) {
575 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1:
576 kovaplus_profile_activated(kovaplus, button_report->data1 - 1);
577 break;
578 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI:
579 kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1);
580 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
581 kovaplus->actual_x_sensitivity = button_report->data1;
582 kovaplus->actual_y_sensitivity = button_report->data2;
583 }
584}
585
586static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus,
587 u8 const *data)
588{
589 struct kovaplus_roccat_report roccat_report;
590 struct kovaplus_mouse_report_button const *button_report;
591
592 if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
593 return;
594
595 button_report = (struct kovaplus_mouse_report_button const *)data;
596
597 if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2)
598 return;
599
600 roccat_report.type = button_report->type;
601 roccat_report.profile = kovaplus->actual_profile + 1;
602
603 if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO ||
604 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT ||
605 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
606 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER)
607 roccat_report.button = button_report->data1;
608 else
609 roccat_report.button = 0;
610
611 if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI)
612 roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1);
613 else
614 roccat_report.data1 = button_report->data1;
615
616 roccat_report.data2 = button_report->data2;
617
618 roccat_report_event(kovaplus->chrdev_minor,
8211e460 619 (uint8_t const *)&roccat_report);
0e70f97f
SA		 620}
621
622static int kovaplus_raw_event(struct hid_device *hdev,
623 struct hid_report *report, u8 *data, int size)
624{
625 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
626 struct kovaplus_device *kovaplus = hid_get_drvdata(hdev);
627
628 if (intf->cur_altsetting->desc.bInterfaceProtocol
629 != USB_INTERFACE_PROTOCOL_MOUSE)
630 return 0;
631
901e64db
SA		 632 if (kovaplus == NULL)
633 return 0;
634
0e70f97f
SA		 635 kovaplus_keep_values_up_to_date(kovaplus, data);
636
637 if (kovaplus->roccat_claimed)
638 kovaplus_report_to_chrdev(kovaplus, data);
639
640 return 0;
641}
642
643static const struct hid_device_id kovaplus_devices[] = {
644 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
645 { }
646};
647
648MODULE_DEVICE_TABLE(hid, kovaplus_devices);
649
650static struct hid_driver kovaplus_driver = {
651 .name = "kovaplus",
652 .id_table = kovaplus_devices,
653 .probe = kovaplus_probe,
654 .remove = kovaplus_remove,
655 .raw_event = kovaplus_raw_event
656};
657
658static int __init kovaplus_init(void)
659{
660 int retval;
661
662 kovaplus_class = class_create(THIS_MODULE, "kovaplus");
663 if (IS_ERR(kovaplus_class))
664 return PTR_ERR(kovaplus_class);
665 kovaplus_class->dev_attrs = kovaplus_attributes;
666 kovaplus_class->dev_bin_attrs = kovaplus_bin_attributes;
667
668 retval = hid_register_driver(&kovaplus_driver);
669 if (retval)
670 class_destroy(kovaplus_class);
671 return retval;
672}
673
674static void __exit kovaplus_exit(void)
675{
0e70f97f 676 hid_unregister_driver(&kovaplus_driver);
74b643da 677 class_destroy(kovaplus_class);
0e70f97f
SA		 678}
679
680module_init(kovaplus_init);
681module_exit(kovaplus_exit);
682
683MODULE_AUTHOR("Stefan Achatz");
684MODULE_DESCRIPTION("USB Roccat Kova[+] driver");
685MODULE_LICENSE("GPL v2");
Linux 6.x block layer and io_uring tree(s)