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_profile_settings(struct usb_device *usb_dev,
  74                 struct kovaplus_profile_settings *buf, uint number)
  75 {
  76         int retval;
  77
  78         retval = kovaplus_select_profile(usb_dev, number,
  79                         KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
  80         if (retval)
  81                 return retval;
  82
  83         return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_SETTINGS,
  84                         buf, KOVAPLUS_SIZE_PROFILE_SETTINGS);
  85 }
  86
  87 static int kovaplus_get_profile_buttons(struct usb_device *usb_dev,
  88                 struct kovaplus_profile_buttons *buf, int number)
  89 {
  90         int retval;
  91
  92         retval = kovaplus_select_profile(usb_dev, number,
  93                         KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
  94         if (retval)
  95                 return retval;
  96
  97         return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_BUTTONS,
  98                         buf, KOVAPLUS_SIZE_PROFILE_BUTTONS);
  99 }
 100
 101 /* retval is 0-4 on success, < 0 on error */
 102 static int kovaplus_get_actual_profile(struct usb_device *usb_dev)
 103 {
 104         struct kovaplus_actual_profile buf;
 105         int retval;
 106
 107         retval = roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_ACTUAL_PROFILE,
 108                         &buf, sizeof(struct kovaplus_actual_profile));
 109
 110         return retval ? retval : buf.actual_profile;
 111 }
 112
 113 static int kovaplus_set_actual_profile(struct usb_device *usb_dev,
 114                 int new_profile)
 115 {
 116         struct kovaplus_actual_profile buf;
 117
 118         buf.command = KOVAPLUS_COMMAND_ACTUAL_PROFILE;
 119         buf.size = sizeof(struct kovaplus_actual_profile);
 120         buf.actual_profile = new_profile;
 121
 122         return roccat_common2_send_with_status(usb_dev,
 123                         KOVAPLUS_COMMAND_ACTUAL_PROFILE,
 124                         &buf, sizeof(struct kovaplus_actual_profile));
 125 }
 126
 127 static ssize_t kovaplus_sysfs_read(struct file *fp, struct kobject *kobj,
 128                 char *buf, loff_t off, size_t count,
 129                 size_t real_size, uint command)
 130 {
 131         struct device *dev =
 132                         container_of(kobj, struct device, kobj)->parent->parent;
 133         struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 134         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 135         int retval;
 136
 137         if (off >= real_size)
 138                 return 0;
 139
 140         if (off != 0 || count != real_size)
 141                 return -EINVAL;
 142
 143         mutex_lock(&kovaplus->kovaplus_lock);
 144         retval = roccat_common2_receive(usb_dev, command, buf, real_size);
 145         mutex_unlock(&kovaplus->kovaplus_lock);
 146
 147         if (retval)
 148                 return retval;
 149
 150         return real_size;
 151 }
 152
 153 static ssize_t kovaplus_sysfs_write(struct file *fp, struct kobject *kobj,
 154                 void const *buf, loff_t off, size_t count,
 155                 size_t real_size, uint command)
 156 {
 157         struct device *dev =
 158                         container_of(kobj, struct device, kobj)->parent->parent;
 159         struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 160         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 161         int retval;
 162
 163         if (off != 0 || count != real_size)
 164                 return -EINVAL;
 165
 166         mutex_lock(&kovaplus->kovaplus_lock);
 167         retval = roccat_common2_send_with_status(usb_dev, command,
 168                         buf, real_size);
 169         mutex_unlock(&kovaplus->kovaplus_lock);
 170
 171         if (retval)
 172                 return retval;
 173
 174         return real_size;
 175 }
 176
 177 #define KOVAPLUS_SYSFS_W(thingy, THINGY) \
 178 static ssize_t kovaplus_sysfs_write_ ## thingy(struct file *fp, \
 179                 struct kobject *kobj, struct bin_attribute *attr, char *buf, \
 180                 loff_t off, size_t count) \
 181 { \
 182         return kovaplus_sysfs_write(fp, kobj, buf, off, count, \
 183                         KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
 184 }
 185
 186 #define KOVAPLUS_SYSFS_R(thingy, THINGY) \
 187 static ssize_t kovaplus_sysfs_read_ ## thingy(struct file *fp, \
 188                 struct kobject *kobj, struct bin_attribute *attr, char *buf, \
 189                 loff_t off, size_t count) \
 190 { \
 191         return kovaplus_sysfs_read(fp, kobj, buf, off, count, \
 192                         KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
 193 }
 194
 195 #define KOVAPLUS_SYSFS_RW(thingy, THINGY) \
 196 KOVAPLUS_SYSFS_W(thingy, THINGY) \
 197 KOVAPLUS_SYSFS_R(thingy, THINGY)
 198
 199 #define KOVAPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
 200 { \
 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 }
 213
 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 \
 219 }
 220
 221 KOVAPLUS_SYSFS_RW(info, INFO)
 222 KOVAPLUS_SYSFS_W(profile_settings, PROFILE_SETTINGS)
 223 KOVAPLUS_SYSFS_W(profile_buttons, PROFILE_BUTTONS)
 224
 225 static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
 226                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 227                 loff_t off, size_t count)
 228 {
 229         struct device *dev =
 230                         container_of(kobj, struct device, kobj)->parent->parent;
 231         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 232         ssize_t retval;
 233
 234         retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
 235                         KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
 236         if (retval)
 237                 return retval;
 238
 239         return kovaplus_sysfs_read(fp, kobj, buf, off, count,
 240                         KOVAPLUS_SIZE_PROFILE_SETTINGS,
 241                         KOVAPLUS_COMMAND_PROFILE_SETTINGS);
 242 }
 243
 244 static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,
 245                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 246                 loff_t off, size_t count)
 247 {
 248         struct device *dev =
 249                         container_of(kobj, struct device, kobj)->parent->parent;
 250         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 251         ssize_t retval;
 252
 253         retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
 254                         KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
 255         if (retval)
 256                 return retval;
 257
 258         return kovaplus_sysfs_read(fp, kobj, buf, off, count,
 259                         KOVAPLUS_SIZE_PROFILE_BUTTONS,
 260                         KOVAPLUS_COMMAND_PROFILE_BUTTONS);
 261 }
 262
 263 static ssize_t kovaplus_sysfs_show_actual_profile(struct device *dev,
 264                 struct device_attribute *attr, char *buf)
 265 {
 266         struct kovaplus_device *kovaplus =
 267                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 268         return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_profile);
 269 }
 270
 271 static ssize_t kovaplus_sysfs_set_actual_profile(struct device *dev,
 272                 struct device_attribute *attr, char const *buf, size_t size)
 273 {
 274         struct kovaplus_device *kovaplus;
 275         struct usb_device *usb_dev;
 276         unsigned long profile;
 277         int retval;
 278         struct kovaplus_roccat_report roccat_report;
 279
 280         dev = dev->parent->parent;
 281         kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 282         usb_dev = interface_to_usbdev(to_usb_interface(dev));
 283
 284         retval = strict_strtoul(buf, 10, &profile);
 285         if (retval)
 286                 return retval;
 287
 288         if (profile >= 5)
 289                 return -EINVAL;
 290
 291         mutex_lock(&kovaplus->kovaplus_lock);
 292         retval = kovaplus_set_actual_profile(usb_dev, profile);
 293         if (retval) {
 294                 mutex_unlock(&kovaplus->kovaplus_lock);
 295                 return retval;
 296         }
 297
 298         kovaplus_profile_activated(kovaplus, profile);
 299
 300         roccat_report.type = KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1;
 301         roccat_report.profile = profile + 1;
 302         roccat_report.button = 0;
 303         roccat_report.data1 = profile + 1;
 304         roccat_report.data2 = 0;
 305         roccat_report_event(kovaplus->chrdev_minor,
 306                         (uint8_t const *)&roccat_report);
 307
 308         mutex_unlock(&kovaplus->kovaplus_lock);
 309
 310         return size;
 311 }
 312
 313 static ssize_t kovaplus_sysfs_show_actual_cpi(struct device *dev,
 314                 struct device_attribute *attr, char *buf)
 315 {
 316         struct kovaplus_device *kovaplus =
 317                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 318         return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_cpi);
 319 }
 320
 321 static ssize_t kovaplus_sysfs_show_actual_sensitivity_x(struct device *dev,
 322                 struct device_attribute *attr, char *buf)
 323 {
 324         struct kovaplus_device *kovaplus =
 325                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 326         return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_x_sensitivity);
 327 }
 328
 329 static ssize_t kovaplus_sysfs_show_actual_sensitivity_y(struct device *dev,
 330                 struct device_attribute *attr, char *buf)
 331 {
 332         struct kovaplus_device *kovaplus =
 333                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 334         return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_y_sensitivity);
 335 }
 336
 337 static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev,
 338                 struct device_attribute *attr, char *buf)
 339 {
 340         struct kovaplus_device *kovaplus;
 341         struct usb_device *usb_dev;
 342         struct kovaplus_info info;
 343
 344         dev = dev->parent->parent;
 345         kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 346         usb_dev = interface_to_usbdev(to_usb_interface(dev));
 347
 348         mutex_lock(&kovaplus->kovaplus_lock);
 349         roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
 350                         &info, KOVAPLUS_SIZE_INFO);
 351         mutex_unlock(&kovaplus->kovaplus_lock);
 352
 353         return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
 354 }
 355
 356 static struct device_attribute kovaplus_attributes[] = {
 357         __ATTR(actual_cpi, 0440,
 358                 kovaplus_sysfs_show_actual_cpi, NULL),
 359         __ATTR(firmware_version, 0440,
 360                 kovaplus_sysfs_show_firmware_version, NULL),
 361         __ATTR(actual_profile, 0660,
 362                 kovaplus_sysfs_show_actual_profile,
 363                 kovaplus_sysfs_set_actual_profile),
 364         __ATTR(actual_sensitivity_x, 0440,
 365                 kovaplus_sysfs_show_actual_sensitivity_x, NULL),
 366         __ATTR(actual_sensitivity_y, 0440,
 367                 kovaplus_sysfs_show_actual_sensitivity_y, NULL),
 368         __ATTR_NULL
 369 };
 370
 371 static struct bin_attribute kovaplus_bin_attributes[] = {
 372         KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO),
 373         KOVAPLUS_BIN_ATTRIBUTE_W(profile_settings, PROFILE_SETTINGS),
 374         KOVAPLUS_BIN_ATTRIBUTE_W(profile_buttons, PROFILE_BUTTONS),
 375         {
 376                 .attr = { .name = "profile1_settings", .mode = 0440 },
 377                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 378                 .read = kovaplus_sysfs_read_profilex_settings,
 379                 .private = &profile_numbers[0]
 380         },
 381         {
 382                 .attr = { .name = "profile2_settings", .mode = 0440 },
 383                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 384                 .read = kovaplus_sysfs_read_profilex_settings,
 385                 .private = &profile_numbers[1]
 386         },
 387         {
 388                 .attr = { .name = "profile3_settings", .mode = 0440 },
 389                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 390                 .read = kovaplus_sysfs_read_profilex_settings,
 391                 .private = &profile_numbers[2]
 392         },
 393         {
 394                 .attr = { .name = "profile4_settings", .mode = 0440 },
 395                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 396                 .read = kovaplus_sysfs_read_profilex_settings,
 397                 .private = &profile_numbers[3]
 398         },
 399         {
 400                 .attr = { .name = "profile5_settings", .mode = 0440 },
 401                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 402                 .read = kovaplus_sysfs_read_profilex_settings,
 403                 .private = &profile_numbers[4]
 404         },
 405         {
 406                 .attr = { .name = "profile1_buttons", .mode = 0440 },
 407                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 408                 .read = kovaplus_sysfs_read_profilex_buttons,
 409                 .private = &profile_numbers[0]
 410         },
 411         {
 412                 .attr = { .name = "profile2_buttons", .mode = 0440 },
 413                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 414                 .read = kovaplus_sysfs_read_profilex_buttons,
 415                 .private = &profile_numbers[1]
 416         },
 417         {
 418                 .attr = { .name = "profile3_buttons", .mode = 0440 },
 419                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 420                 .read = kovaplus_sysfs_read_profilex_buttons,
 421                 .private = &profile_numbers[2]
 422         },
 423         {
 424                 .attr = { .name = "profile4_buttons", .mode = 0440 },
 425                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 426                 .read = kovaplus_sysfs_read_profilex_buttons,
 427                 .private = &profile_numbers[3]
 428         },
 429         {
 430                 .attr = { .name = "profile5_buttons", .mode = 0440 },
 431                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 432                 .read = kovaplus_sysfs_read_profilex_buttons,
 433                 .private = &profile_numbers[4]
 434         },
 435         __ATTR_NULL
 436 };
 437
 438 static int kovaplus_init_kovaplus_device_struct(struct usb_device *usb_dev,
 439                 struct kovaplus_device *kovaplus)
 440 {
 441         int retval, i;
 442         static uint wait = 70; /* device will freeze with just 60 */
 443
 444         mutex_init(&kovaplus->kovaplus_lock);
 445
 446         for (i = 0; i < 5; ++i) {
 447                 msleep(wait);
 448                 retval = kovaplus_get_profile_settings(usb_dev,
 449                                 &kovaplus->profile_settings[i], i);
 450                 if (retval)
 451                         return retval;
 452
 453                 msleep(wait);
 454                 retval = kovaplus_get_profile_buttons(usb_dev,
 455                                 &kovaplus->profile_buttons[i], i);
 456                 if (retval)
 457                         return retval;
 458         }
 459
 460         msleep(wait);
 461         retval = kovaplus_get_actual_profile(usb_dev);
 462         if (retval < 0)
 463                 return retval;
 464         kovaplus_profile_activated(kovaplus, retval);
 465
 466         return 0;
 467 }
 468
 469 static int kovaplus_init_specials(struct hid_device *hdev)
 470 {
 471         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 472         struct usb_device *usb_dev = interface_to_usbdev(intf);
 473         struct kovaplus_device *kovaplus;
 474         int retval;
 475
 476         if (intf->cur_altsetting->desc.bInterfaceProtocol
 477                         == USB_INTERFACE_PROTOCOL_MOUSE) {
 478
 479                 kovaplus = kzalloc(sizeof(*kovaplus), GFP_KERNEL);
 480                 if (!kovaplus) {
 481                         hid_err(hdev, "can't alloc device descriptor\n");
 482                         return -ENOMEM;
 483                 }
 484                 hid_set_drvdata(hdev, kovaplus);
 485
 486                 retval = kovaplus_init_kovaplus_device_struct(usb_dev, kovaplus);
 487                 if (retval) {
 488                         hid_err(hdev, "couldn't init struct kovaplus_device\n");
 489                         goto exit_free;
 490                 }
 491
 492                 retval = roccat_connect(kovaplus_class, hdev,
 493                                 sizeof(struct kovaplus_roccat_report));
 494                 if (retval < 0) {
 495                         hid_err(hdev, "couldn't init char dev\n");
 496                 } else {
 497                         kovaplus->chrdev_minor = retval;
 498                         kovaplus->roccat_claimed = 1;
 499                 }
 500
 501         } else {
 502                 hid_set_drvdata(hdev, NULL);
 503         }
 504
 505         return 0;
 506 exit_free:
 507         kfree(kovaplus);
 508         return retval;
 509 }
 510
 511 static void kovaplus_remove_specials(struct hid_device *hdev)
 512 {
 513         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 514         struct kovaplus_device *kovaplus;
 515
 516         if (intf->cur_altsetting->desc.bInterfaceProtocol
 517                         == USB_INTERFACE_PROTOCOL_MOUSE) {
 518                 kovaplus = hid_get_drvdata(hdev);
 519                 if (kovaplus->roccat_claimed)
 520                         roccat_disconnect(kovaplus->chrdev_minor);
 521                 kfree(kovaplus);
 522         }
 523 }
 524
 525 static int kovaplus_probe(struct hid_device *hdev,
 526                 const struct hid_device_id *id)
 527 {
 528         int retval;
 529
 530         retval = hid_parse(hdev);
 531         if (retval) {
 532                 hid_err(hdev, "parse failed\n");
 533                 goto exit;
 534         }
 535
 536         retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 537         if (retval) {
 538                 hid_err(hdev, "hw start failed\n");
 539                 goto exit;
 540         }
 541
 542         retval = kovaplus_init_specials(hdev);
 543         if (retval) {
 544                 hid_err(hdev, "couldn't install mouse\n");
 545                 goto exit_stop;
 546         }
 547
 548         return 0;
 549
 550 exit_stop:
 551         hid_hw_stop(hdev);
 552 exit:
 553         return retval;
 554 }
 555
 556 static void kovaplus_remove(struct hid_device *hdev)
 557 {
 558         kovaplus_remove_specials(hdev);
 559         hid_hw_stop(hdev);
 560 }
 561
 562 static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus,
 563                 u8 const *data)
 564 {
 565         struct kovaplus_mouse_report_button const *button_report;
 566
 567         if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
 568                 return;
 569
 570         button_report = (struct kovaplus_mouse_report_button const *)data;
 571
 572         switch (button_report->type) {
 573         case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1:
 574                 kovaplus_profile_activated(kovaplus, button_report->data1 - 1);
 575                 break;
 576         case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI:
 577                 kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1);
 578         case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
 579                 kovaplus->actual_x_sensitivity = button_report->data1;
 580                 kovaplus->actual_y_sensitivity = button_report->data2;
 581         }
 582 }
 583
 584 static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus,
 585                 u8 const *data)
 586 {
 587         struct kovaplus_roccat_report roccat_report;
 588         struct kovaplus_mouse_report_button const *button_report;
 589
 590         if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
 591                 return;
 592
 593         button_report = (struct kovaplus_mouse_report_button const *)data;
 594
 595         if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2)
 596                 return;
 597
 598         roccat_report.type = button_report->type;
 599         roccat_report.profile = kovaplus->actual_profile + 1;
 600
 601         if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO ||
 602                         roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT ||
 603                         roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
 604                         roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER)
 605                 roccat_report.button = button_report->data1;
 606         else
 607                 roccat_report.button = 0;
 608
 609         if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI)
 610                 roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1);
 611         else
 612                 roccat_report.data1 = button_report->data1;
 613
 614         roccat_report.data2 = button_report->data2;
 615
 616         roccat_report_event(kovaplus->chrdev_minor,
 617                         (uint8_t const *)&roccat_report);
 618 }
 619
 620 static int kovaplus_raw_event(struct hid_device *hdev,
 621                 struct hid_report *report, u8 *data, int size)
 622 {
 623         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 624         struct kovaplus_device *kovaplus = hid_get_drvdata(hdev);
 625
 626         if (intf->cur_altsetting->desc.bInterfaceProtocol
 627                         != USB_INTERFACE_PROTOCOL_MOUSE)
 628                 return 0;
 629
 630         if (kovaplus == NULL)
 631                 return 0;
 632
 633         kovaplus_keep_values_up_to_date(kovaplus, data);
 634
 635         if (kovaplus->roccat_claimed)
 636                 kovaplus_report_to_chrdev(kovaplus, data);
 637
 638         return 0;
 639 }
 640
 641 static const struct hid_device_id kovaplus_devices[] = {
 642         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
 643         { }
 644 };
 645
 646 MODULE_DEVICE_TABLE(hid, kovaplus_devices);
 647
 648 static struct hid_driver kovaplus_driver = {
 649                 .name = "kovaplus",
 650                 .id_table = kovaplus_devices,
 651                 .probe = kovaplus_probe,
 652                 .remove = kovaplus_remove,
 653                 .raw_event = kovaplus_raw_event
 654 };
 655
 656 static int __init kovaplus_init(void)
 657 {
 658         int retval;
 659
 660         kovaplus_class = class_create(THIS_MODULE, "kovaplus");
 661         if (IS_ERR(kovaplus_class))
 662                 return PTR_ERR(kovaplus_class);
 663         kovaplus_class->dev_attrs = kovaplus_attributes;
 664         kovaplus_class->dev_bin_attrs = kovaplus_bin_attributes;
 665
 666         retval = hid_register_driver(&kovaplus_driver);
 667         if (retval)
 668                 class_destroy(kovaplus_class);
 669         return retval;
 670 }
 671
 672 static void __exit kovaplus_exit(void)
 673 {
 674         hid_unregister_driver(&kovaplus_driver);
 675         class_destroy(kovaplus_class);
 676 }
 677
 678 module_init(kovaplus_init);
 679 module_exit(kovaplus_exit);
 680
 681 MODULE_AUTHOR("Stefan Achatz");
 682 MODULE_DESCRIPTION("USB Roccat Kova[+] driver");
 683 MODULE_LICENSE("GPL v2");