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_W(control, CONTROL)
 222 KOVAPLUS_SYSFS_RW(info, INFO)
 223 KOVAPLUS_SYSFS_RW(profile_settings, PROFILE_SETTINGS)
 224 KOVAPLUS_SYSFS_RW(profile_buttons, PROFILE_BUTTONS)
 225
 226 static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
 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;
 232         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 233         ssize_t retval;
 234
 235         retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
 236                         KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
 237         if (retval)
 238                 return retval;
 239
 240         return kovaplus_sysfs_read(fp, kobj, buf, off, count,
 241                         KOVAPLUS_SIZE_PROFILE_SETTINGS,
 242                         KOVAPLUS_COMMAND_PROFILE_SETTINGS);
 243 }
 244
 245 static 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;
 253
 254         retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
 255                         KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
 256         if (retval)
 257                 return retval;
 258
 259         return kovaplus_sysfs_read(fp, kobj, buf, off, count,
 260                         KOVAPLUS_SIZE_PROFILE_BUTTONS,
 261                         KOVAPLUS_COMMAND_PROFILE_BUTTONS);
 262 }
 263
 264 static 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
 272 static 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;
 279         struct kovaplus_roccat_report roccat_report;
 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);
 294         if (retval) {
 295                 mutex_unlock(&kovaplus->kovaplus_lock);
 296                 return retval;
 297         }
 298
 299         kovaplus_profile_activated(kovaplus, profile);
 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
 309         mutex_unlock(&kovaplus->kovaplus_lock);
 310
 311         return size;
 312 }
 313
 314 static 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
 322 static 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
 330 static 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
 338 static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev,
 339                 struct device_attribute *attr, char *buf)
 340 {
 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);
 355 }
 356
 357 static 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
 372 static struct bin_attribute kovaplus_bin_attributes[] = {
 373         KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL),
 374         KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO),
 375         KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS),
 376         KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS),
 377         {
 378                 .attr = { .name = "profile1_settings", .mode = 0440 },
 379                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 380                 .read = kovaplus_sysfs_read_profilex_settings,
 381                 .private = &profile_numbers[0]
 382         },
 383         {
 384                 .attr = { .name = "profile2_settings", .mode = 0440 },
 385                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 386                 .read = kovaplus_sysfs_read_profilex_settings,
 387                 .private = &profile_numbers[1]
 388         },
 389         {
 390                 .attr = { .name = "profile3_settings", .mode = 0440 },
 391                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 392                 .read = kovaplus_sysfs_read_profilex_settings,
 393                 .private = &profile_numbers[2]
 394         },
 395         {
 396                 .attr = { .name = "profile4_settings", .mode = 0440 },
 397                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 398                 .read = kovaplus_sysfs_read_profilex_settings,
 399                 .private = &profile_numbers[3]
 400         },
 401         {
 402                 .attr = { .name = "profile5_settings", .mode = 0440 },
 403                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 404                 .read = kovaplus_sysfs_read_profilex_settings,
 405                 .private = &profile_numbers[4]
 406         },
 407         {
 408                 .attr = { .name = "profile1_buttons", .mode = 0440 },
 409                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 410                 .read = kovaplus_sysfs_read_profilex_buttons,
 411                 .private = &profile_numbers[0]
 412         },
 413         {
 414                 .attr = { .name = "profile2_buttons", .mode = 0440 },
 415                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 416                 .read = kovaplus_sysfs_read_profilex_buttons,
 417                 .private = &profile_numbers[1]
 418         },
 419         {
 420                 .attr = { .name = "profile3_buttons", .mode = 0440 },
 421                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 422                 .read = kovaplus_sysfs_read_profilex_buttons,
 423                 .private = &profile_numbers[2]
 424         },
 425         {
 426                 .attr = { .name = "profile4_buttons", .mode = 0440 },
 427                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 428                 .read = kovaplus_sysfs_read_profilex_buttons,
 429                 .private = &profile_numbers[3]
 430         },
 431         {
 432                 .attr = { .name = "profile5_buttons", .mode = 0440 },
 433                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 434                 .read = kovaplus_sysfs_read_profilex_buttons,
 435                 .private = &profile_numbers[4]
 436         },
 437         __ATTR_NULL
 438 };
 439
 440 static 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
 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
 471 static 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
 494                 retval = roccat_connect(kovaplus_class, hdev,
 495                                 sizeof(struct kovaplus_roccat_report));
 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;
 508 exit_free:
 509         kfree(kovaplus);
 510         return retval;
 511 }
 512
 513 static 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
 527 static 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
 552 exit_stop:
 553         hid_hw_stop(hdev);
 554 exit:
 555         return retval;
 556 }
 557
 558 static void kovaplus_remove(struct hid_device *hdev)
 559 {
 560         kovaplus_remove_specials(hdev);
 561         hid_hw_stop(hdev);
 562 }
 563
 564 static 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                 break;
 581         case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
 582                 kovaplus->actual_x_sensitivity = button_report->data1;
 583                 kovaplus->actual_y_sensitivity = button_report->data2;
 584                 break;
 585         default:
 586                 break;
 587         }
 588 }
 589
 590 static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus,
 591                 u8 const *data)
 592 {
 593         struct kovaplus_roccat_report roccat_report;
 594         struct kovaplus_mouse_report_button const *button_report;
 595
 596         if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
 597                 return;
 598
 599         button_report = (struct kovaplus_mouse_report_button const *)data;
 600
 601         if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2)
 602                 return;
 603
 604         roccat_report.type = button_report->type;
 605         roccat_report.profile = kovaplus->actual_profile + 1;
 606
 607         if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO ||
 608                         roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT ||
 609                         roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
 610                         roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER)
 611                 roccat_report.button = button_report->data1;
 612         else
 613                 roccat_report.button = 0;
 614
 615         if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI)
 616                 roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1);
 617         else
 618                 roccat_report.data1 = button_report->data1;
 619
 620         roccat_report.data2 = button_report->data2;
 621
 622         roccat_report_event(kovaplus->chrdev_minor,
 623                         (uint8_t const *)&roccat_report);
 624 }
 625
 626 static int kovaplus_raw_event(struct hid_device *hdev,
 627                 struct hid_report *report, u8 *data, int size)
 628 {
 629         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 630         struct kovaplus_device *kovaplus = hid_get_drvdata(hdev);
 631
 632         if (intf->cur_altsetting->desc.bInterfaceProtocol
 633                         != USB_INTERFACE_PROTOCOL_MOUSE)
 634                 return 0;
 635
 636         if (kovaplus == NULL)
 637                 return 0;
 638
 639         kovaplus_keep_values_up_to_date(kovaplus, data);
 640
 641         if (kovaplus->roccat_claimed)
 642                 kovaplus_report_to_chrdev(kovaplus, data);
 643
 644         return 0;
 645 }
 646
 647 static const struct hid_device_id kovaplus_devices[] = {
 648         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
 649         { }
 650 };
 651
 652 MODULE_DEVICE_TABLE(hid, kovaplus_devices);
 653
 654 static struct hid_driver kovaplus_driver = {
 655                 .name = "kovaplus",
 656                 .id_table = kovaplus_devices,
 657                 .probe = kovaplus_probe,
 658                 .remove = kovaplus_remove,
 659                 .raw_event = kovaplus_raw_event
 660 };
 661
 662 static int __init kovaplus_init(void)
 663 {
 664         int retval;
 665
 666         kovaplus_class = class_create(THIS_MODULE, "kovaplus");
 667         if (IS_ERR(kovaplus_class))
 668                 return PTR_ERR(kovaplus_class);
 669         kovaplus_class->dev_attrs = kovaplus_attributes;
 670         kovaplus_class->dev_bin_attrs = kovaplus_bin_attributes;
 671
 672         retval = hid_register_driver(&kovaplus_driver);
 673         if (retval)
 674                 class_destroy(kovaplus_class);
 675         return retval;
 676 }
 677
 678 static void __exit kovaplus_exit(void)
 679 {
 680         hid_unregister_driver(&kovaplus_driver);
 681         class_destroy(kovaplus_class);
 682 }
 683
 684 module_init(kovaplus_init);
 685 module_exit(kovaplus_exit);
 686
 687 MODULE_AUTHOR("Stefan Achatz");
 688 MODULE_DESCRIPTION("USB Roccat Kova[+] driver");
 689 MODULE_LICENSE("GPL v2");