drivers/hid/hid-roccat-kovaplus.c

   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_info(struct usb_device *usb_dev,
  74                 struct kovaplus_info *buf)
  75 {
  76         return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
  77                         buf, sizeof(struct kovaplus_info));
  78 }
  79
  80 static int kovaplus_get_profile_settings(struct usb_device *usb_dev,
  81                 struct kovaplus_profile_settings *buf, uint number)
  82 {
  83         int retval;
  84
  85         retval = kovaplus_select_profile(usb_dev, number,
  86                         KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
  87         if (retval)
  88                 return retval;
  89
  90         return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_SETTINGS,
  91                         buf, sizeof(struct kovaplus_profile_settings));
  92 }
  93
  94 static int kovaplus_set_profile_settings(struct usb_device *usb_dev,
  95                 struct kovaplus_profile_settings const *settings)
  96 {
  97         return roccat_common2_send_with_status(usb_dev,
  98                         KOVAPLUS_COMMAND_PROFILE_SETTINGS,
  99                         settings, sizeof(struct kovaplus_profile_settings));
 100 }
 101
 102 static int kovaplus_get_profile_buttons(struct usb_device *usb_dev,
 103                 struct kovaplus_profile_buttons *buf, int number)
 104 {
 105         int retval;
 106
 107         retval = kovaplus_select_profile(usb_dev, number,
 108                         KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
 109         if (retval)
 110                 return retval;
 111
 112         return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_BUTTONS,
 113                         buf, sizeof(struct kovaplus_profile_buttons));
 114 }
 115
 116 static int kovaplus_set_profile_buttons(struct usb_device *usb_dev,
 117                 struct kovaplus_profile_buttons const *buttons)
 118 {
 119         return roccat_common2_send_with_status(usb_dev,
 120                         KOVAPLUS_COMMAND_PROFILE_BUTTONS,
 121                         buttons, sizeof(struct kovaplus_profile_buttons));
 122 }
 123
 124 /* retval is 0-4 on success, < 0 on error */
 125 static int kovaplus_get_actual_profile(struct usb_device *usb_dev)
 126 {
 127         struct kovaplus_actual_profile buf;
 128         int retval;
 129
 130         retval = roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_ACTUAL_PROFILE,
 131                         &buf, sizeof(struct kovaplus_actual_profile));
 132
 133         return retval ? retval : buf.actual_profile;
 134 }
 135
 136 static int kovaplus_set_actual_profile(struct usb_device *usb_dev,
 137                 int new_profile)
 138 {
 139         struct kovaplus_actual_profile buf;
 140
 141         buf.command = KOVAPLUS_COMMAND_ACTUAL_PROFILE;
 142         buf.size = sizeof(struct kovaplus_actual_profile);
 143         buf.actual_profile = new_profile;
 144
 145         return roccat_common2_send_with_status(usb_dev,
 146                         KOVAPLUS_COMMAND_ACTUAL_PROFILE,
 147                         &buf, sizeof(struct kovaplus_actual_profile));
 148 }
 149
 150 static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
 151                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 152                 loff_t off, size_t count)
 153 {
 154         struct device *dev =
 155                         container_of(kobj, struct device, kobj)->parent->parent;
 156         struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 157
 158         if (off >= sizeof(struct kovaplus_profile_settings))
 159                 return 0;
 160
 161         if (off + count > sizeof(struct kovaplus_profile_settings))
 162                 count = sizeof(struct kovaplus_profile_settings) - off;
 163
 164         mutex_lock(&kovaplus->kovaplus_lock);
 165         memcpy(buf, ((char const *)&kovaplus->profile_settings[*(uint *)(attr->private)]) + off,
 166                         count);
 167         mutex_unlock(&kovaplus->kovaplus_lock);
 168
 169         return count;
 170 }
 171
 172 static ssize_t kovaplus_sysfs_write_profile_settings(struct file *fp,
 173                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 174                 loff_t off, size_t count)
 175 {
 176         struct device *dev =
 177                         container_of(kobj, struct device, kobj)->parent->parent;
 178         struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 179         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 180         int retval = 0;
 181         int difference;
 182         int profile_index;
 183         struct kovaplus_profile_settings *profile_settings;
 184
 185         if (off != 0 || count != sizeof(struct kovaplus_profile_settings))
 186                 return -EINVAL;
 187
 188         profile_index = ((struct kovaplus_profile_settings const *)buf)->profile_index;
 189         profile_settings = &kovaplus->profile_settings[profile_index];
 190
 191         mutex_lock(&kovaplus->kovaplus_lock);
 192         difference = memcmp(buf, profile_settings,
 193                         sizeof(struct kovaplus_profile_settings));
 194         if (difference) {
 195                 retval = kovaplus_set_profile_settings(usb_dev,
 196                                 (struct kovaplus_profile_settings const *)buf);
 197                 if (!retval)
 198                         memcpy(profile_settings, buf,
 199                                         sizeof(struct kovaplus_profile_settings));
 200         }
 201         mutex_unlock(&kovaplus->kovaplus_lock);
 202
 203         if (retval)
 204                 return retval;
 205
 206         return sizeof(struct kovaplus_profile_settings);
 207 }
 208
 209 static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,
 210                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 211                 loff_t off, size_t count)
 212 {
 213         struct device *dev =
 214                         container_of(kobj, struct device, kobj)->parent->parent;
 215         struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 216
 217         if (off >= sizeof(struct kovaplus_profile_buttons))
 218                 return 0;
 219
 220         if (off + count > sizeof(struct kovaplus_profile_buttons))
 221                 count = sizeof(struct kovaplus_profile_buttons) - off;
 222
 223         mutex_lock(&kovaplus->kovaplus_lock);
 224         memcpy(buf, ((char const *)&kovaplus->profile_buttons[*(uint *)(attr->private)]) + off,
 225                         count);
 226         mutex_unlock(&kovaplus->kovaplus_lock);
 227
 228         return count;
 229 }
 230
 231 static ssize_t kovaplus_sysfs_write_profile_buttons(struct file *fp,
 232                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 233                 loff_t off, size_t count)
 234 {
 235         struct device *dev =
 236                         container_of(kobj, struct device, kobj)->parent->parent;
 237         struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 238         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 239         int retval = 0;
 240         int difference;
 241         uint profile_index;
 242         struct kovaplus_profile_buttons *profile_buttons;
 243
 244         if (off != 0 || count != sizeof(struct kovaplus_profile_buttons))
 245                 return -EINVAL;
 246
 247         profile_index = ((struct kovaplus_profile_buttons const *)buf)->profile_index;
 248         profile_buttons = &kovaplus->profile_buttons[profile_index];
 249
 250         mutex_lock(&kovaplus->kovaplus_lock);
 251         difference = memcmp(buf, profile_buttons,
 252                         sizeof(struct kovaplus_profile_buttons));
 253         if (difference) {
 254                 retval = kovaplus_set_profile_buttons(usb_dev,
 255                                 (struct kovaplus_profile_buttons const *)buf);
 256                 if (!retval)
 257                         memcpy(profile_buttons, buf,
 258                                         sizeof(struct kovaplus_profile_buttons));
 259         }
 260         mutex_unlock(&kovaplus->kovaplus_lock);
 261
 262         if (retval)
 263                 return retval;
 264
 265         return sizeof(struct kovaplus_profile_buttons);
 266 }
 267
 268 static ssize_t kovaplus_sysfs_show_actual_profile(struct device *dev,
 269                 struct device_attribute *attr, char *buf)
 270 {
 271         struct kovaplus_device *kovaplus =
 272                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 273         return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_profile);
 274 }
 275
 276 static ssize_t kovaplus_sysfs_set_actual_profile(struct device *dev,
 277                 struct device_attribute *attr, char const *buf, size_t size)
 278 {
 279         struct kovaplus_device *kovaplus;
 280         struct usb_device *usb_dev;
 281         unsigned long profile;
 282         int retval;
 283         struct kovaplus_roccat_report roccat_report;
 284
 285         dev = dev->parent->parent;
 286         kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 287         usb_dev = interface_to_usbdev(to_usb_interface(dev));
 288
 289         retval = strict_strtoul(buf, 10, &profile);
 290         if (retval)
 291                 return retval;
 292
 293         if (profile >= 5)
 294                 return -EINVAL;
 295
 296         mutex_lock(&kovaplus->kovaplus_lock);
 297         retval = kovaplus_set_actual_profile(usb_dev, profile);
 298         if (retval) {
 299                 mutex_unlock(&kovaplus->kovaplus_lock);
 300                 return retval;
 301         }
 302
 303         kovaplus_profile_activated(kovaplus, profile);
 304
 305         roccat_report.type = KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1;
 306         roccat_report.profile = profile + 1;
 307         roccat_report.button = 0;
 308         roccat_report.data1 = profile + 1;
 309         roccat_report.data2 = 0;
 310         roccat_report_event(kovaplus->chrdev_minor,
 311                         (uint8_t const *)&roccat_report);
 312
 313         mutex_unlock(&kovaplus->kovaplus_lock);
 314
 315         return size;
 316 }
 317
 318 static ssize_t kovaplus_sysfs_show_actual_cpi(struct device *dev,
 319                 struct device_attribute *attr, char *buf)
 320 {
 321         struct kovaplus_device *kovaplus =
 322                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 323         return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_cpi);
 324 }
 325
 326 static ssize_t kovaplus_sysfs_show_actual_sensitivity_x(struct device *dev,
 327                 struct device_attribute *attr, char *buf)
 328 {
 329         struct kovaplus_device *kovaplus =
 330                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 331         return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_x_sensitivity);
 332 }
 333
 334 static ssize_t kovaplus_sysfs_show_actual_sensitivity_y(struct device *dev,
 335                 struct device_attribute *attr, char *buf)
 336 {
 337         struct kovaplus_device *kovaplus =
 338                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 339         return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_y_sensitivity);
 340 }
 341
 342 static ssize_t kovaplus_sysfs_show_firmware_version(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->info.firmware_version);
 348 }
 349
 350 static struct device_attribute kovaplus_attributes[] = {
 351         __ATTR(actual_cpi, 0440,
 352                 kovaplus_sysfs_show_actual_cpi, NULL),
 353         __ATTR(firmware_version, 0440,
 354                 kovaplus_sysfs_show_firmware_version, NULL),
 355         __ATTR(actual_profile, 0660,
 356                 kovaplus_sysfs_show_actual_profile,
 357                 kovaplus_sysfs_set_actual_profile),
 358         __ATTR(actual_sensitivity_x, 0440,
 359                 kovaplus_sysfs_show_actual_sensitivity_x, NULL),
 360         __ATTR(actual_sensitivity_y, 0440,
 361                 kovaplus_sysfs_show_actual_sensitivity_y, NULL),
 362         __ATTR_NULL
 363 };
 364
 365 static struct bin_attribute kovaplus_bin_attributes[] = {
 366         {
 367                 .attr = { .name = "profile_settings", .mode = 0220 },
 368                 .size = sizeof(struct kovaplus_profile_settings),
 369                 .write = kovaplus_sysfs_write_profile_settings
 370         },
 371         {
 372                 .attr = { .name = "profile1_settings", .mode = 0440 },
 373                 .size = sizeof(struct kovaplus_profile_settings),
 374                 .read = kovaplus_sysfs_read_profilex_settings,
 375                 .private = &profile_numbers[0]
 376         },
 377         {
 378                 .attr = { .name = "profile2_settings", .mode = 0440 },
 379                 .size = sizeof(struct kovaplus_profile_settings),
 380                 .read = kovaplus_sysfs_read_profilex_settings,
 381                 .private = &profile_numbers[1]
 382         },
 383         {
 384                 .attr = { .name = "profile3_settings", .mode = 0440 },
 385                 .size = sizeof(struct kovaplus_profile_settings),
 386                 .read = kovaplus_sysfs_read_profilex_settings,
 387                 .private = &profile_numbers[2]
 388         },
 389         {
 390                 .attr = { .name = "profile4_settings", .mode = 0440 },
 391                 .size = sizeof(struct kovaplus_profile_settings),
 392                 .read = kovaplus_sysfs_read_profilex_settings,
 393                 .private = &profile_numbers[3]
 394         },
 395         {
 396                 .attr = { .name = "profile5_settings", .mode = 0440 },
 397                 .size = sizeof(struct kovaplus_profile_settings),
 398                 .read = kovaplus_sysfs_read_profilex_settings,
 399                 .private = &profile_numbers[4]
 400         },
 401         {
 402                 .attr = { .name = "profile_buttons", .mode = 0220 },
 403                 .size = sizeof(struct kovaplus_profile_buttons),
 404                 .write = kovaplus_sysfs_write_profile_buttons
 405         },
 406         {
 407                 .attr = { .name = "profile1_buttons", .mode = 0440 },
 408                 .size = sizeof(struct kovaplus_profile_buttons),
 409                 .read = kovaplus_sysfs_read_profilex_buttons,
 410                 .private = &profile_numbers[0]
 411         },
 412         {
 413                 .attr = { .name = "profile2_buttons", .mode = 0440 },
 414                 .size = sizeof(struct kovaplus_profile_buttons),
 415                 .read = kovaplus_sysfs_read_profilex_buttons,
 416                 .private = &profile_numbers[1]
 417         },
 418         {
 419                 .attr = { .name = "profile3_buttons", .mode = 0440 },
 420                 .size = sizeof(struct kovaplus_profile_buttons),
 421                 .read = kovaplus_sysfs_read_profilex_buttons,
 422                 .private = &profile_numbers[2]
 423         },
 424         {
 425                 .attr = { .name = "profile4_buttons", .mode = 0440 },
 426                 .size = sizeof(struct kovaplus_profile_buttons),
 427                 .read = kovaplus_sysfs_read_profilex_buttons,
 428                 .private = &profile_numbers[3]
 429         },
 430         {
 431                 .attr = { .name = "profile5_buttons", .mode = 0440 },
 432                 .size = sizeof(struct kovaplus_profile_buttons),
 433                 .read = kovaplus_sysfs_read_profilex_buttons,
 434                 .private = &profile_numbers[4]
 435         },
 436         __ATTR_NULL
 437 };
 438
 439 static int kovaplus_init_kovaplus_device_struct(struct usb_device *usb_dev,
 440                 struct kovaplus_device *kovaplus)
 441 {
 442         int retval, i;
 443         static uint wait = 70; /* device will freeze with just 60 */
 444
 445         mutex_init(&kovaplus->kovaplus_lock);
 446
 447         retval = kovaplus_get_info(usb_dev, &kovaplus->info);
 448         if (retval)
 449                 return retval;
 450
 451         for (i = 0; i < 5; ++i) {
 452                 msleep(wait);
 453                 retval = kovaplus_get_profile_settings(usb_dev,
 454                                 &kovaplus->profile_settings[i], i);
 455                 if (retval)
 456                         return retval;
 457
 458                 msleep(wait);
 459                 retval = kovaplus_get_profile_buttons(usb_dev,
 460                                 &kovaplus->profile_buttons[i], i);
 461                 if (retval)
 462                         return retval;
 463         }
 464
 465         msleep(wait);
 466         retval = kovaplus_get_actual_profile(usb_dev);
 467         if (retval < 0)
 468                 return retval;
 469         kovaplus_profile_activated(kovaplus, retval);
 470
 471         return 0;
 472 }
 473
 474 static int kovaplus_init_specials(struct hid_device *hdev)
 475 {
 476         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 477         struct usb_device *usb_dev = interface_to_usbdev(intf);
 478         struct kovaplus_device *kovaplus;
 479         int retval;
 480
 481         if (intf->cur_altsetting->desc.bInterfaceProtocol
 482                         == USB_INTERFACE_PROTOCOL_MOUSE) {
 483
 484                 kovaplus = kzalloc(sizeof(*kovaplus), GFP_KERNEL);
 485                 if (!kovaplus) {
 486                         hid_err(hdev, "can't alloc device descriptor\n");
 487                         return -ENOMEM;
 488                 }
 489                 hid_set_drvdata(hdev, kovaplus);
 490
 491                 retval = kovaplus_init_kovaplus_device_struct(usb_dev, kovaplus);
 492                 if (retval) {
 493                         hid_err(hdev, "couldn't init struct kovaplus_device\n");
 494                         goto exit_free;
 495                 }
 496
 497                 retval = roccat_connect(kovaplus_class, hdev,
 498                                 sizeof(struct kovaplus_roccat_report));
 499                 if (retval < 0) {
 500                         hid_err(hdev, "couldn't init char dev\n");
 501                 } else {
 502                         kovaplus->chrdev_minor = retval;
 503                         kovaplus->roccat_claimed = 1;
 504                 }
 505
 506         } else {
 507                 hid_set_drvdata(hdev, NULL);
 508         }
 509
 510         return 0;
 511 exit_free:
 512         kfree(kovaplus);
 513         return retval;
 514 }
 515
 516 static void kovaplus_remove_specials(struct hid_device *hdev)
 517 {
 518         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 519         struct kovaplus_device *kovaplus;
 520
 521         if (intf->cur_altsetting->desc.bInterfaceProtocol
 522                         == USB_INTERFACE_PROTOCOL_MOUSE) {
 523                 kovaplus = hid_get_drvdata(hdev);
 524                 if (kovaplus->roccat_claimed)
 525                         roccat_disconnect(kovaplus->chrdev_minor);
 526                 kfree(kovaplus);
 527         }
 528 }
 529
 530 static int kovaplus_probe(struct hid_device *hdev,
 531                 const struct hid_device_id *id)
 532 {
 533         int retval;
 534
 535         retval = hid_parse(hdev);
 536         if (retval) {
 537                 hid_err(hdev, "parse failed\n");
 538                 goto exit;
 539         }
 540
 541         retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 542         if (retval) {
 543                 hid_err(hdev, "hw start failed\n");
 544                 goto exit;
 545         }
 546
 547         retval = kovaplus_init_specials(hdev);
 548         if (retval) {
 549                 hid_err(hdev, "couldn't install mouse\n");
 550                 goto exit_stop;
 551         }
 552
 553         return 0;
 554
 555 exit_stop:
 556         hid_hw_stop(hdev);
 557 exit:
 558         return retval;
 559 }
 560
 561 static void kovaplus_remove(struct hid_device *hdev)
 562 {
 563         kovaplus_remove_specials(hdev);
 564         hid_hw_stop(hdev);
 565 }
 566
 567 static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus,
 568                 u8 const *data)
 569 {
 570         struct kovaplus_mouse_report_button const *button_report;
 571
 572         if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
 573                 return;
 574
 575         button_report = (struct kovaplus_mouse_report_button const *)data;
 576
 577         switch (button_report->type) {
 578         case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1:
 579                 kovaplus_profile_activated(kovaplus, button_report->data1 - 1);
 580                 break;
 581         case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI:
 582                 kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1);
 583         case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
 584                 kovaplus->actual_x_sensitivity = button_report->data1;
 585                 kovaplus->actual_y_sensitivity = button_report->data2;
 586         }
 587 }
 588
 589 static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus,
 590                 u8 const *data)
 591 {
 592         struct kovaplus_roccat_report roccat_report;
 593         struct kovaplus_mouse_report_button const *button_report;
 594
 595         if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
 596                 return;
 597
 598         button_report = (struct kovaplus_mouse_report_button const *)data;
 599
 600         if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2)
 601                 return;
 602
 603         roccat_report.type = button_report->type;
 604         roccat_report.profile = kovaplus->actual_profile + 1;
 605
 606         if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO ||
 607                         roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT ||
 608                         roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
 609                         roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER)
 610                 roccat_report.button = button_report->data1;
 611         else
 612                 roccat_report.button = 0;
 613
 614         if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI)
 615                 roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1);
 616         else
 617                 roccat_report.data1 = button_report->data1;
 618
 619         roccat_report.data2 = button_report->data2;
 620
 621         roccat_report_event(kovaplus->chrdev_minor,
 622                         (uint8_t const *)&roccat_report);
 623 }
 624
 625 static int kovaplus_raw_event(struct hid_device *hdev,
 626                 struct hid_report *report, u8 *data, int size)
 627 {
 628         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 629         struct kovaplus_device *kovaplus = hid_get_drvdata(hdev);
 630
 631         if (intf->cur_altsetting->desc.bInterfaceProtocol
 632                         != USB_INTERFACE_PROTOCOL_MOUSE)
 633                 return 0;
 634
 635         if (kovaplus == NULL)
 636                 return 0;
 637
 638         kovaplus_keep_values_up_to_date(kovaplus, data);
 639
 640         if (kovaplus->roccat_claimed)
 641                 kovaplus_report_to_chrdev(kovaplus, data);
 642
 643         return 0;
 644 }
 645
 646 static const struct hid_device_id kovaplus_devices[] = {
 647         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
 648         { }
 649 };
 650
 651 MODULE_DEVICE_TABLE(hid, kovaplus_devices);
 652
 653 static struct hid_driver kovaplus_driver = {
 654                 .name = "kovaplus",
 655                 .id_table = kovaplus_devices,
 656                 .probe = kovaplus_probe,
 657                 .remove = kovaplus_remove,
 658                 .raw_event = kovaplus_raw_event
 659 };
 660
 661 static int __init kovaplus_init(void)
 662 {
 663         int retval;
 664
 665         kovaplus_class = class_create(THIS_MODULE, "kovaplus");
 666         if (IS_ERR(kovaplus_class))
 667                 return PTR_ERR(kovaplus_class);
 668         kovaplus_class->dev_attrs = kovaplus_attributes;
 669         kovaplus_class->dev_bin_attrs = kovaplus_bin_attributes;
 670
 671         retval = hid_register_driver(&kovaplus_driver);
 672         if (retval)
 673                 class_destroy(kovaplus_class);
 674         return retval;
 675 }
 676
 677 static void __exit kovaplus_exit(void)
 678 {
 679         hid_unregister_driver(&kovaplus_driver);
 680         class_destroy(kovaplus_class);
 681 }
 682
 683 module_init(kovaplus_init);
 684 module_exit(kovaplus_exit);
 685
 686 MODULE_AUTHOR("Stefan Achatz");
 687 MODULE_DESCRIPTION("USB Roccat Kova[+] driver");
 688 MODULE_LICENSE("GPL v2");