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0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * Roccat Kova[+] driver for Linux
0004  *
0005  * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
0006  */
0007 
0008 /*
0009  */
0010 
0011 /*
0012  * Roccat Kova[+] is a bigger version of the Pyra with two more side buttons.
0013  */
0014 
0015 #include <linux/device.h>
0016 #include <linux/input.h>
0017 #include <linux/hid.h>
0018 #include <linux/module.h>
0019 #include <linux/slab.h>
0020 #include <linux/hid-roccat.h>
0021 #include "hid-ids.h"
0022 #include "hid-roccat-common.h"
0023 #include "hid-roccat-kovaplus.h"
0024 
0025 static uint profile_numbers[5] = {0, 1, 2, 3, 4};
0026 
0027 static struct class *kovaplus_class;
0028 
0029 static uint kovaplus_convert_event_cpi(uint value)
0030 {
0031     return (value == 7 ? 4 : (value == 4 ? 3 : value));
0032 }
0033 
0034 static void kovaplus_profile_activated(struct kovaplus_device *kovaplus,
0035         uint new_profile_index)
0036 {
0037     if (new_profile_index >= ARRAY_SIZE(kovaplus->profile_settings))
0038         return;
0039     kovaplus->actual_profile = new_profile_index;
0040     kovaplus->actual_cpi = kovaplus->profile_settings[new_profile_index].cpi_startup_level;
0041     kovaplus->actual_x_sensitivity = kovaplus->profile_settings[new_profile_index].sensitivity_x;
0042     kovaplus->actual_y_sensitivity = kovaplus->profile_settings[new_profile_index].sensitivity_y;
0043 }
0044 
0045 static int kovaplus_send_control(struct usb_device *usb_dev, uint value,
0046         enum kovaplus_control_requests request)
0047 {
0048     int retval;
0049     struct roccat_common2_control control;
0050 
0051     if ((request == KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
0052             request == KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
0053             value > 4)
0054         return -EINVAL;
0055 
0056     control.command = ROCCAT_COMMON_COMMAND_CONTROL;
0057     control.value = value;
0058     control.request = request;
0059 
0060     retval = roccat_common2_send(usb_dev, ROCCAT_COMMON_COMMAND_CONTROL,
0061             &control, sizeof(struct roccat_common2_control));
0062 
0063     return retval;
0064 }
0065 
0066 static int kovaplus_select_profile(struct usb_device *usb_dev, uint number,
0067         enum kovaplus_control_requests request)
0068 {
0069     return kovaplus_send_control(usb_dev, number, request);
0070 }
0071 
0072 static int kovaplus_get_profile_settings(struct usb_device *usb_dev,
0073         struct kovaplus_profile_settings *buf, uint number)
0074 {
0075     int retval;
0076 
0077     retval = kovaplus_select_profile(usb_dev, number,
0078             KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
0079     if (retval)
0080         return retval;
0081 
0082     return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_SETTINGS,
0083             buf, KOVAPLUS_SIZE_PROFILE_SETTINGS);
0084 }
0085 
0086 static int kovaplus_get_profile_buttons(struct usb_device *usb_dev,
0087         struct kovaplus_profile_buttons *buf, int number)
0088 {
0089     int retval;
0090 
0091     retval = kovaplus_select_profile(usb_dev, number,
0092             KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
0093     if (retval)
0094         return retval;
0095 
0096     return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_BUTTONS,
0097             buf, KOVAPLUS_SIZE_PROFILE_BUTTONS);
0098 }
0099 
0100 /* retval is 0-4 on success, < 0 on error */
0101 static int kovaplus_get_actual_profile(struct usb_device *usb_dev)
0102 {
0103     struct kovaplus_actual_profile buf;
0104     int retval;
0105 
0106     retval = roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_ACTUAL_PROFILE,
0107             &buf, sizeof(struct kovaplus_actual_profile));
0108 
0109     return retval ? retval : buf.actual_profile;
0110 }
0111 
0112 static int kovaplus_set_actual_profile(struct usb_device *usb_dev,
0113         int new_profile)
0114 {
0115     struct kovaplus_actual_profile buf;
0116 
0117     buf.command = KOVAPLUS_COMMAND_ACTUAL_PROFILE;
0118     buf.size = sizeof(struct kovaplus_actual_profile);
0119     buf.actual_profile = new_profile;
0120 
0121     return roccat_common2_send_with_status(usb_dev,
0122             KOVAPLUS_COMMAND_ACTUAL_PROFILE,
0123             &buf, sizeof(struct kovaplus_actual_profile));
0124 }
0125 
0126 static ssize_t kovaplus_sysfs_read(struct file *fp, struct kobject *kobj,
0127         char *buf, loff_t off, size_t count,
0128         size_t real_size, uint command)
0129 {
0130     struct device *dev = kobj_to_dev(kobj)->parent->parent;
0131     struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
0132     struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
0133     int retval;
0134 
0135     if (off >= real_size)
0136         return 0;
0137 
0138     if (off != 0 || count != real_size)
0139         return -EINVAL;
0140 
0141     mutex_lock(&kovaplus->kovaplus_lock);
0142     retval = roccat_common2_receive(usb_dev, command, buf, real_size);
0143     mutex_unlock(&kovaplus->kovaplus_lock);
0144 
0145     if (retval)
0146         return retval;
0147 
0148     return real_size;
0149 }
0150 
0151 static ssize_t kovaplus_sysfs_write(struct file *fp, struct kobject *kobj,
0152         void const *buf, loff_t off, size_t count,
0153         size_t real_size, uint command)
0154 {
0155     struct device *dev = kobj_to_dev(kobj)->parent->parent;
0156     struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
0157     struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
0158     int retval;
0159 
0160     if (off != 0 || count != real_size)
0161         return -EINVAL;
0162 
0163     mutex_lock(&kovaplus->kovaplus_lock);
0164     retval = roccat_common2_send_with_status(usb_dev, command,
0165             buf, real_size);
0166     mutex_unlock(&kovaplus->kovaplus_lock);
0167 
0168     if (retval)
0169         return retval;
0170 
0171     return real_size;
0172 }
0173 
0174 #define KOVAPLUS_SYSFS_W(thingy, THINGY) \
0175 static ssize_t kovaplus_sysfs_write_ ## thingy(struct file *fp, \
0176         struct kobject *kobj, struct bin_attribute *attr, char *buf, \
0177         loff_t off, size_t count) \
0178 { \
0179     return kovaplus_sysfs_write(fp, kobj, buf, off, count, \
0180             KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
0181 }
0182 
0183 #define KOVAPLUS_SYSFS_R(thingy, THINGY) \
0184 static ssize_t kovaplus_sysfs_read_ ## thingy(struct file *fp, \
0185         struct kobject *kobj, struct bin_attribute *attr, char *buf, \
0186         loff_t off, size_t count) \
0187 { \
0188     return kovaplus_sysfs_read(fp, kobj, buf, off, count, \
0189             KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
0190 }
0191 
0192 #define KOVAPLUS_SYSFS_RW(thingy, THINGY) \
0193 KOVAPLUS_SYSFS_W(thingy, THINGY) \
0194 KOVAPLUS_SYSFS_R(thingy, THINGY)
0195 
0196 #define KOVAPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
0197 KOVAPLUS_SYSFS_RW(thingy, THINGY); \
0198 static struct bin_attribute bin_attr_##thingy = { \
0199     .attr = { .name = #thingy, .mode = 0660 }, \
0200     .size = KOVAPLUS_SIZE_ ## THINGY, \
0201     .read = kovaplus_sysfs_read_ ## thingy, \
0202     .write = kovaplus_sysfs_write_ ## thingy \
0203 }
0204 
0205 #define KOVAPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
0206 KOVAPLUS_SYSFS_W(thingy, THINGY); \
0207 static struct bin_attribute bin_attr_##thingy = { \
0208     .attr = { .name = #thingy, .mode = 0220 }, \
0209     .size = KOVAPLUS_SIZE_ ## THINGY, \
0210     .write = kovaplus_sysfs_write_ ## thingy \
0211 }
0212 KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL);
0213 KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO);
0214 KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
0215 KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);
0216 
0217 static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
0218         struct kobject *kobj, struct bin_attribute *attr, char *buf,
0219         loff_t off, size_t count)
0220 {
0221     struct device *dev = kobj_to_dev(kobj)->parent->parent;
0222     struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
0223     ssize_t retval;
0224 
0225     retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
0226             KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
0227     if (retval)
0228         return retval;
0229 
0230     return kovaplus_sysfs_read(fp, kobj, buf, off, count,
0231             KOVAPLUS_SIZE_PROFILE_SETTINGS,
0232             KOVAPLUS_COMMAND_PROFILE_SETTINGS);
0233 }
0234 
0235 static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,
0236         struct kobject *kobj, struct bin_attribute *attr, char *buf,
0237         loff_t off, size_t count)
0238 {
0239     struct device *dev = kobj_to_dev(kobj)->parent->parent;
0240     struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
0241     ssize_t retval;
0242 
0243     retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
0244             KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
0245     if (retval)
0246         return retval;
0247 
0248     return kovaplus_sysfs_read(fp, kobj, buf, off, count,
0249             KOVAPLUS_SIZE_PROFILE_BUTTONS,
0250             KOVAPLUS_COMMAND_PROFILE_BUTTONS);
0251 }
0252 
0253 #define PROFILE_ATTR(number)                        \
0254 static struct bin_attribute bin_attr_profile##number##_settings = { \
0255     .attr = { .name = "profile" #number "_settings", .mode = 0440 },    \
0256     .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,             \
0257     .read = kovaplus_sysfs_read_profilex_settings,          \
0258     .private = &profile_numbers[number-1],              \
0259 };                                  \
0260 static struct bin_attribute bin_attr_profile##number##_buttons = {  \
0261     .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \
0262     .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,              \
0263     .read = kovaplus_sysfs_read_profilex_buttons,           \
0264     .private = &profile_numbers[number-1],              \
0265 };
0266 PROFILE_ATTR(1);
0267 PROFILE_ATTR(2);
0268 PROFILE_ATTR(3);
0269 PROFILE_ATTR(4);
0270 PROFILE_ATTR(5);
0271 
0272 static ssize_t kovaplus_sysfs_show_actual_profile(struct device *dev,
0273         struct device_attribute *attr, char *buf)
0274 {
0275     struct kovaplus_device *kovaplus =
0276             hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
0277     return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_profile);
0278 }
0279 
0280 static ssize_t kovaplus_sysfs_set_actual_profile(struct device *dev,
0281         struct device_attribute *attr, char const *buf, size_t size)
0282 {
0283     struct kovaplus_device *kovaplus;
0284     struct usb_device *usb_dev;
0285     unsigned long profile;
0286     int retval;
0287     struct kovaplus_roccat_report roccat_report;
0288 
0289     dev = dev->parent->parent;
0290     kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
0291     usb_dev = interface_to_usbdev(to_usb_interface(dev));
0292 
0293     retval = kstrtoul(buf, 10, &profile);
0294     if (retval)
0295         return retval;
0296 
0297     if (profile >= 5)
0298         return -EINVAL;
0299 
0300     mutex_lock(&kovaplus->kovaplus_lock);
0301     retval = kovaplus_set_actual_profile(usb_dev, profile);
0302     if (retval) {
0303         mutex_unlock(&kovaplus->kovaplus_lock);
0304         return retval;
0305     }
0306 
0307     kovaplus_profile_activated(kovaplus, profile);
0308 
0309     roccat_report.type = KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1;
0310     roccat_report.profile = profile + 1;
0311     roccat_report.button = 0;
0312     roccat_report.data1 = profile + 1;
0313     roccat_report.data2 = 0;
0314     roccat_report_event(kovaplus->chrdev_minor,
0315             (uint8_t const *)&roccat_report);
0316 
0317     mutex_unlock(&kovaplus->kovaplus_lock);
0318 
0319     return size;
0320 }
0321 static DEVICE_ATTR(actual_profile, 0660,
0322            kovaplus_sysfs_show_actual_profile,
0323            kovaplus_sysfs_set_actual_profile);
0324 
0325 static ssize_t kovaplus_sysfs_show_actual_cpi(struct device *dev,
0326         struct device_attribute *attr, char *buf)
0327 {
0328     struct kovaplus_device *kovaplus =
0329             hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
0330     return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_cpi);
0331 }
0332 static DEVICE_ATTR(actual_cpi, 0440, kovaplus_sysfs_show_actual_cpi, NULL);
0333 
0334 static ssize_t kovaplus_sysfs_show_actual_sensitivity_x(struct device *dev,
0335         struct device_attribute *attr, char *buf)
0336 {
0337     struct kovaplus_device *kovaplus =
0338             hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
0339     return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_x_sensitivity);
0340 }
0341 static DEVICE_ATTR(actual_sensitivity_x, 0440,
0342            kovaplus_sysfs_show_actual_sensitivity_x, NULL);
0343 
0344 static ssize_t kovaplus_sysfs_show_actual_sensitivity_y(struct device *dev,
0345         struct device_attribute *attr, char *buf)
0346 {
0347     struct kovaplus_device *kovaplus =
0348             hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
0349     return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_y_sensitivity);
0350 }
0351 static DEVICE_ATTR(actual_sensitivity_y, 0440,
0352            kovaplus_sysfs_show_actual_sensitivity_y, NULL);
0353 
0354 static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev,
0355         struct device_attribute *attr, char *buf)
0356 {
0357     struct kovaplus_device *kovaplus;
0358     struct usb_device *usb_dev;
0359     struct kovaplus_info info;
0360 
0361     dev = dev->parent->parent;
0362     kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
0363     usb_dev = interface_to_usbdev(to_usb_interface(dev));
0364 
0365     mutex_lock(&kovaplus->kovaplus_lock);
0366     roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
0367             &info, KOVAPLUS_SIZE_INFO);
0368     mutex_unlock(&kovaplus->kovaplus_lock);
0369 
0370     return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
0371 }
0372 static DEVICE_ATTR(firmware_version, 0440,
0373            kovaplus_sysfs_show_firmware_version, NULL);
0374 
0375 static struct attribute *kovaplus_attrs[] = {
0376     &dev_attr_actual_cpi.attr,
0377     &dev_attr_firmware_version.attr,
0378     &dev_attr_actual_profile.attr,
0379     &dev_attr_actual_sensitivity_x.attr,
0380     &dev_attr_actual_sensitivity_y.attr,
0381     NULL,
0382 };
0383 
0384 static struct bin_attribute *kovaplus_bin_attributes[] = {
0385     &bin_attr_control,
0386     &bin_attr_info,
0387     &bin_attr_profile_settings,
0388     &bin_attr_profile_buttons,
0389     &bin_attr_profile1_settings,
0390     &bin_attr_profile2_settings,
0391     &bin_attr_profile3_settings,
0392     &bin_attr_profile4_settings,
0393     &bin_attr_profile5_settings,
0394     &bin_attr_profile1_buttons,
0395     &bin_attr_profile2_buttons,
0396     &bin_attr_profile3_buttons,
0397     &bin_attr_profile4_buttons,
0398     &bin_attr_profile5_buttons,
0399     NULL,
0400 };
0401 
0402 static const struct attribute_group kovaplus_group = {
0403     .attrs = kovaplus_attrs,
0404     .bin_attrs = kovaplus_bin_attributes,
0405 };
0406 
0407 static const struct attribute_group *kovaplus_groups[] = {
0408     &kovaplus_group,
0409     NULL,
0410 };
0411 
0412 static int kovaplus_init_kovaplus_device_struct(struct usb_device *usb_dev,
0413         struct kovaplus_device *kovaplus)
0414 {
0415     int retval, i;
0416     static uint wait = 70; /* device will freeze with just 60 */
0417 
0418     mutex_init(&kovaplus->kovaplus_lock);
0419 
0420     for (i = 0; i < 5; ++i) {
0421         msleep(wait);
0422         retval = kovaplus_get_profile_settings(usb_dev,
0423                 &kovaplus->profile_settings[i], i);
0424         if (retval)
0425             return retval;
0426 
0427         msleep(wait);
0428         retval = kovaplus_get_profile_buttons(usb_dev,
0429                 &kovaplus->profile_buttons[i], i);
0430         if (retval)
0431             return retval;
0432     }
0433 
0434     msleep(wait);
0435     retval = kovaplus_get_actual_profile(usb_dev);
0436     if (retval < 0)
0437         return retval;
0438     kovaplus_profile_activated(kovaplus, retval);
0439 
0440     return 0;
0441 }
0442 
0443 static int kovaplus_init_specials(struct hid_device *hdev)
0444 {
0445     struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
0446     struct usb_device *usb_dev = interface_to_usbdev(intf);
0447     struct kovaplus_device *kovaplus;
0448     int retval;
0449 
0450     if (intf->cur_altsetting->desc.bInterfaceProtocol
0451             == USB_INTERFACE_PROTOCOL_MOUSE) {
0452 
0453         kovaplus = kzalloc(sizeof(*kovaplus), GFP_KERNEL);
0454         if (!kovaplus) {
0455             hid_err(hdev, "can't alloc device descriptor\n");
0456             return -ENOMEM;
0457         }
0458         hid_set_drvdata(hdev, kovaplus);
0459 
0460         retval = kovaplus_init_kovaplus_device_struct(usb_dev, kovaplus);
0461         if (retval) {
0462             hid_err(hdev, "couldn't init struct kovaplus_device\n");
0463             goto exit_free;
0464         }
0465 
0466         retval = roccat_connect(kovaplus_class, hdev,
0467                 sizeof(struct kovaplus_roccat_report));
0468         if (retval < 0) {
0469             hid_err(hdev, "couldn't init char dev\n");
0470         } else {
0471             kovaplus->chrdev_minor = retval;
0472             kovaplus->roccat_claimed = 1;
0473         }
0474 
0475     } else {
0476         hid_set_drvdata(hdev, NULL);
0477     }
0478 
0479     return 0;
0480 exit_free:
0481     kfree(kovaplus);
0482     return retval;
0483 }
0484 
0485 static void kovaplus_remove_specials(struct hid_device *hdev)
0486 {
0487     struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
0488     struct kovaplus_device *kovaplus;
0489 
0490     if (intf->cur_altsetting->desc.bInterfaceProtocol
0491             == USB_INTERFACE_PROTOCOL_MOUSE) {
0492         kovaplus = hid_get_drvdata(hdev);
0493         if (kovaplus->roccat_claimed)
0494             roccat_disconnect(kovaplus->chrdev_minor);
0495         kfree(kovaplus);
0496     }
0497 }
0498 
0499 static int kovaplus_probe(struct hid_device *hdev,
0500         const struct hid_device_id *id)
0501 {
0502     int retval;
0503 
0504     if (!hid_is_usb(hdev))
0505         return -EINVAL;
0506 
0507     retval = hid_parse(hdev);
0508     if (retval) {
0509         hid_err(hdev, "parse failed\n");
0510         goto exit;
0511     }
0512 
0513     retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
0514     if (retval) {
0515         hid_err(hdev, "hw start failed\n");
0516         goto exit;
0517     }
0518 
0519     retval = kovaplus_init_specials(hdev);
0520     if (retval) {
0521         hid_err(hdev, "couldn't install mouse\n");
0522         goto exit_stop;
0523     }
0524 
0525     return 0;
0526 
0527 exit_stop:
0528     hid_hw_stop(hdev);
0529 exit:
0530     return retval;
0531 }
0532 
0533 static void kovaplus_remove(struct hid_device *hdev)
0534 {
0535     kovaplus_remove_specials(hdev);
0536     hid_hw_stop(hdev);
0537 }
0538 
0539 static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus,
0540         u8 const *data)
0541 {
0542     struct kovaplus_mouse_report_button const *button_report;
0543 
0544     if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
0545         return;
0546 
0547     button_report = (struct kovaplus_mouse_report_button const *)data;
0548 
0549     switch (button_report->type) {
0550     case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1:
0551         kovaplus_profile_activated(kovaplus, button_report->data1 - 1);
0552         break;
0553     case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI:
0554         kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1);
0555         break;
0556     case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
0557         kovaplus->actual_x_sensitivity = button_report->data1;
0558         kovaplus->actual_y_sensitivity = button_report->data2;
0559         break;
0560     default:
0561         break;
0562     }
0563 }
0564 
0565 static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus,
0566         u8 const *data)
0567 {
0568     struct kovaplus_roccat_report roccat_report;
0569     struct kovaplus_mouse_report_button const *button_report;
0570 
0571     if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
0572         return;
0573 
0574     button_report = (struct kovaplus_mouse_report_button const *)data;
0575 
0576     if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2)
0577         return;
0578 
0579     roccat_report.type = button_report->type;
0580     roccat_report.profile = kovaplus->actual_profile + 1;
0581 
0582     if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO ||
0583             roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT ||
0584             roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
0585             roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER)
0586         roccat_report.button = button_report->data1;
0587     else
0588         roccat_report.button = 0;
0589 
0590     if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI)
0591         roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1);
0592     else
0593         roccat_report.data1 = button_report->data1;
0594 
0595     roccat_report.data2 = button_report->data2;
0596 
0597     roccat_report_event(kovaplus->chrdev_minor,
0598             (uint8_t const *)&roccat_report);
0599 }
0600 
0601 static int kovaplus_raw_event(struct hid_device *hdev,
0602         struct hid_report *report, u8 *data, int size)
0603 {
0604     struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
0605     struct kovaplus_device *kovaplus = hid_get_drvdata(hdev);
0606 
0607     if (intf->cur_altsetting->desc.bInterfaceProtocol
0608             != USB_INTERFACE_PROTOCOL_MOUSE)
0609         return 0;
0610 
0611     if (kovaplus == NULL)
0612         return 0;
0613 
0614     kovaplus_keep_values_up_to_date(kovaplus, data);
0615 
0616     if (kovaplus->roccat_claimed)
0617         kovaplus_report_to_chrdev(kovaplus, data);
0618 
0619     return 0;
0620 }
0621 
0622 static const struct hid_device_id kovaplus_devices[] = {
0623     { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
0624     { }
0625 };
0626 
0627 MODULE_DEVICE_TABLE(hid, kovaplus_devices);
0628 
0629 static struct hid_driver kovaplus_driver = {
0630         .name = "kovaplus",
0631         .id_table = kovaplus_devices,
0632         .probe = kovaplus_probe,
0633         .remove = kovaplus_remove,
0634         .raw_event = kovaplus_raw_event
0635 };
0636 
0637 static int __init kovaplus_init(void)
0638 {
0639     int retval;
0640 
0641     kovaplus_class = class_create(THIS_MODULE, "kovaplus");
0642     if (IS_ERR(kovaplus_class))
0643         return PTR_ERR(kovaplus_class);
0644     kovaplus_class->dev_groups = kovaplus_groups;
0645 
0646     retval = hid_register_driver(&kovaplus_driver);
0647     if (retval)
0648         class_destroy(kovaplus_class);
0649     return retval;
0650 }
0651 
0652 static void __exit kovaplus_exit(void)
0653 {
0654     hid_unregister_driver(&kovaplus_driver);
0655     class_destroy(kovaplus_class);
0656 }
0657 
0658 module_init(kovaplus_init);
0659 module_exit(kovaplus_exit);
0660 
0661 MODULE_AUTHOR("Stefan Achatz");
0662 MODULE_DESCRIPTION("USB Roccat Kova[+] driver");
0663 MODULE_LICENSE("GPL v2");
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