drivers/hid/hid-roccat-koneplus.c

   1 /*
   2  * Roccat Kone[+] driver for Linux
   3  *
   4  * Copyright (c) 2010 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 Kone[+] is an updated/improved version of the Kone with more memory
  16  * and functionality and without the non-standard behaviours the Kone had.
  17  */
  18
  19 #include <linux/device.h>
  20 #include <linux/input.h>
  21 #include <linux/hid.h>
  22 #include <linux/module.h>
  23 #include <linux/slab.h>
  24 #include <linux/hid-roccat.h>
  25 #include "hid-ids.h"
  26 #include "hid-roccat-common.h"
  27 #include "hid-roccat-koneplus.h"
  28
  29 static uint profile_numbers[5] = {0, 1, 2, 3, 4};
  30
  31 static struct class *koneplus_class;
  32
  33 static void koneplus_profile_activated(struct koneplus_device *koneplus,
  34                 uint new_profile)
  35 {
  36         koneplus->actual_profile = new_profile;
  37 }
  38
  39 static int koneplus_send_control(struct usb_device *usb_dev, uint value,
  40                 enum koneplus_control_requests request)
  41 {
  42         struct roccat_common2_control control;
  43
  44         if ((request == KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
  45                         request == KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
  46                         value > 4)
  47                 return -EINVAL;
  48
  49         control.command = ROCCAT_COMMON_COMMAND_CONTROL;
  50         control.value = value;
  51         control.request = request;
  52
  53         return roccat_common2_send_with_status(usb_dev,
  54                         ROCCAT_COMMON_COMMAND_CONTROL,
  55                         &control, sizeof(struct roccat_common2_control));
  56 }
  57
  58 static int koneplus_get_info(struct usb_device *usb_dev,
  59                 struct koneplus_info *buf)
  60 {
  61         return roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_INFO,
  62                         buf, sizeof(struct koneplus_info));
  63 }
  64
  65 static int koneplus_get_profile_settings(struct usb_device *usb_dev,
  66                 struct koneplus_profile_settings *buf, uint number)
  67 {
  68         int retval;
  69
  70         retval = koneplus_send_control(usb_dev, number,
  71                         KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
  72         if (retval)
  73                 return retval;
  74
  75         return roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_PROFILE_SETTINGS,
  76                         buf, sizeof(struct koneplus_profile_settings));
  77 }
  78
  79 static int koneplus_set_profile_settings(struct usb_device *usb_dev,
  80                 struct koneplus_profile_settings const *settings)
  81 {
  82         return roccat_common2_send_with_status(usb_dev,
  83                         KONEPLUS_COMMAND_PROFILE_SETTINGS,
  84                         settings, sizeof(struct koneplus_profile_settings));
  85 }
  86
  87 static int koneplus_get_profile_buttons(struct usb_device *usb_dev,
  88                 struct koneplus_profile_buttons *buf, int number)
  89 {
  90         int retval;
  91
  92         retval = koneplus_send_control(usb_dev, number,
  93                         KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
  94         if (retval)
  95                 return retval;
  96
  97         return roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_PROFILE_BUTTONS,
  98                         buf, sizeof(struct koneplus_profile_buttons));
  99 }
 100
 101 static int koneplus_set_profile_buttons(struct usb_device *usb_dev,
 102                 struct koneplus_profile_buttons const *buttons)
 103 {
 104         return roccat_common2_send_with_status(usb_dev,
 105                         KONEPLUS_COMMAND_PROFILE_BUTTONS,
 106                         buttons, sizeof(struct koneplus_profile_buttons));
 107 }
 108
 109 /* retval is 0-4 on success, < 0 on error */
 110 static int koneplus_get_actual_profile(struct usb_device *usb_dev)
 111 {
 112         struct koneplus_actual_profile buf;
 113         int retval;
 114
 115         retval = roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_ACTUAL_PROFILE,
 116                         &buf, sizeof(struct koneplus_actual_profile));
 117
 118         return retval ? retval : buf.actual_profile;
 119 }
 120
 121 static int koneplus_set_actual_profile(struct usb_device *usb_dev,
 122                 int new_profile)
 123 {
 124         struct koneplus_actual_profile buf;
 125
 126         buf.command = KONEPLUS_COMMAND_ACTUAL_PROFILE;
 127         buf.size = sizeof(struct koneplus_actual_profile);
 128         buf.actual_profile = new_profile;
 129
 130         return roccat_common2_send_with_status(usb_dev,
 131                         KONEPLUS_COMMAND_ACTUAL_PROFILE,
 132                         &buf, sizeof(struct koneplus_actual_profile));
 133 }
 134
 135 static ssize_t koneplus_sysfs_read(struct file *fp, struct kobject *kobj,
 136                 char *buf, loff_t off, size_t count,
 137                 size_t real_size, uint command)
 138 {
 139         struct device *dev =
 140                         container_of(kobj, struct device, kobj)->parent->parent;
 141         struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 142         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 143         int retval;
 144
 145         if (off >= real_size)
 146                 return 0;
 147
 148         if (off != 0 || count != real_size)
 149                 return -EINVAL;
 150
 151         mutex_lock(&koneplus->koneplus_lock);
 152         retval = roccat_common2_receive(usb_dev, command, buf, real_size);
 153         mutex_unlock(&koneplus->koneplus_lock);
 154
 155         if (retval)
 156                 return retval;
 157
 158         return real_size;
 159 }
 160
 161 static ssize_t koneplus_sysfs_write(struct file *fp, struct kobject *kobj,
 162                 void const *buf, loff_t off, size_t count,
 163                 size_t real_size, uint command)
 164 {
 165         struct device *dev =
 166                         container_of(kobj, struct device, kobj)->parent->parent;
 167         struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 168         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 169         int retval;
 170
 171         if (off != 0 || count != real_size)
 172                 return -EINVAL;
 173
 174         mutex_lock(&koneplus->koneplus_lock);
 175         retval = roccat_common2_send_with_status(usb_dev, command,
 176                         buf, real_size);
 177         mutex_unlock(&koneplus->koneplus_lock);
 178
 179         if (retval)
 180                 return retval;
 181
 182         return real_size;
 183 }
 184
 185 static ssize_t koneplus_sysfs_write_talk(struct file *fp,
 186                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 187                 loff_t off, size_t count)
 188 {
 189         return koneplus_sysfs_write(fp, kobj, buf, off, count,
 190                         sizeof(struct koneplus_talk), KONEPLUS_COMMAND_TALK);
 191 }
 192
 193 static ssize_t koneplus_sysfs_write_macro(struct file *fp,
 194                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 195                 loff_t off, size_t count)
 196 {
 197         return koneplus_sysfs_write(fp, kobj, buf, off, count,
 198                         sizeof(struct koneplus_macro), KONEPLUS_COMMAND_MACRO);
 199 }
 200
 201 static ssize_t koneplus_sysfs_read_sensor(struct file *fp,
 202                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 203                 loff_t off, size_t count)
 204 {
 205         return koneplus_sysfs_read(fp, kobj, buf, off, count,
 206                         sizeof(struct koneplus_sensor), KONEPLUS_COMMAND_SENSOR);
 207 }
 208
 209 static ssize_t koneplus_sysfs_write_sensor(struct file *fp,
 210                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 211                 loff_t off, size_t count)
 212 {
 213         return koneplus_sysfs_write(fp, kobj, buf, off, count,
 214                         sizeof(struct koneplus_sensor), KONEPLUS_COMMAND_SENSOR);
 215 }
 216
 217 static ssize_t koneplus_sysfs_write_tcu(struct file *fp,
 218                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 219                 loff_t off, size_t count)
 220 {
 221         return koneplus_sysfs_write(fp, kobj, buf, off, count,
 222                         sizeof(struct koneplus_tcu), KONEPLUS_COMMAND_TCU);
 223 }
 224
 225 static ssize_t koneplus_sysfs_read_tcu_image(struct file *fp,
 226                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 227                 loff_t off, size_t count)
 228 {
 229         return koneplus_sysfs_read(fp, kobj, buf, off, count,
 230                         sizeof(struct koneplus_tcu_image), KONEPLUS_COMMAND_TCU);
 231 }
 232
 233 static ssize_t koneplus_sysfs_read_profilex_settings(struct file *fp,
 234                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 235                 loff_t off, size_t count)
 236 {
 237         struct device *dev =
 238                         container_of(kobj, struct device, kobj)->parent->parent;
 239         struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 240
 241         if (off >= sizeof(struct koneplus_profile_settings))
 242                 return 0;
 243
 244         if (off + count > sizeof(struct koneplus_profile_settings))
 245                 count = sizeof(struct koneplus_profile_settings) - off;
 246
 247         mutex_lock(&koneplus->koneplus_lock);
 248         memcpy(buf, ((char const *)&koneplus->profile_settings[*(uint *)(attr->private)]) + off,
 249                         count);
 250         mutex_unlock(&koneplus->koneplus_lock);
 251
 252         return count;
 253 }
 254
 255 static ssize_t koneplus_sysfs_write_profile_settings(struct file *fp,
 256                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 257                 loff_t off, size_t count)
 258 {
 259         struct device *dev =
 260                         container_of(kobj, struct device, kobj)->parent->parent;
 261         struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 262         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 263         int retval = 0;
 264         int difference;
 265         int profile_number;
 266         struct koneplus_profile_settings *profile_settings;
 267
 268         if (off != 0 || count != sizeof(struct koneplus_profile_settings))
 269                 return -EINVAL;
 270
 271         profile_number = ((struct koneplus_profile_settings const *)buf)->number;
 272         profile_settings = &koneplus->profile_settings[profile_number];
 273
 274         mutex_lock(&koneplus->koneplus_lock);
 275         difference = memcmp(buf, profile_settings,
 276                         sizeof(struct koneplus_profile_settings));
 277         if (difference) {
 278                 retval = koneplus_set_profile_settings(usb_dev,
 279                                 (struct koneplus_profile_settings const *)buf);
 280                 if (!retval)
 281                         memcpy(profile_settings, buf,
 282                                         sizeof(struct koneplus_profile_settings));
 283         }
 284         mutex_unlock(&koneplus->koneplus_lock);
 285
 286         if (retval)
 287                 return retval;
 288
 289         return sizeof(struct koneplus_profile_settings);
 290 }
 291
 292 static ssize_t koneplus_sysfs_read_profilex_buttons(struct file *fp,
 293                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 294                 loff_t off, size_t count)
 295 {
 296         struct device *dev =
 297                         container_of(kobj, struct device, kobj)->parent->parent;
 298         struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 299
 300         if (off >= sizeof(struct koneplus_profile_buttons))
 301                 return 0;
 302
 303         if (off + count > sizeof(struct koneplus_profile_buttons))
 304                 count = sizeof(struct koneplus_profile_buttons) - off;
 305
 306         mutex_lock(&koneplus->koneplus_lock);
 307         memcpy(buf, ((char const *)&koneplus->profile_buttons[*(uint *)(attr->private)]) + off,
 308                         count);
 309         mutex_unlock(&koneplus->koneplus_lock);
 310
 311         return count;
 312 }
 313
 314 static ssize_t koneplus_sysfs_write_profile_buttons(struct file *fp,
 315                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 316                 loff_t off, size_t count)
 317 {
 318         struct device *dev =
 319                         container_of(kobj, struct device, kobj)->parent->parent;
 320         struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 321         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 322         int retval = 0;
 323         int difference;
 324         uint profile_number;
 325         struct koneplus_profile_buttons *profile_buttons;
 326
 327         if (off != 0 || count != sizeof(struct koneplus_profile_buttons))
 328                 return -EINVAL;
 329
 330         profile_number = ((struct koneplus_profile_buttons const *)buf)->number;
 331         profile_buttons = &koneplus->profile_buttons[profile_number];
 332
 333         mutex_lock(&koneplus->koneplus_lock);
 334         difference = memcmp(buf, profile_buttons,
 335                         sizeof(struct koneplus_profile_buttons));
 336         if (difference) {
 337                 retval = koneplus_set_profile_buttons(usb_dev,
 338                                 (struct koneplus_profile_buttons const *)buf);
 339                 if (!retval)
 340                         memcpy(profile_buttons, buf,
 341                                         sizeof(struct koneplus_profile_buttons));
 342         }
 343         mutex_unlock(&koneplus->koneplus_lock);
 344
 345         if (retval)
 346                 return retval;
 347
 348         return sizeof(struct koneplus_profile_buttons);
 349 }
 350
 351 static ssize_t koneplus_sysfs_show_actual_profile(struct device *dev,
 352                 struct device_attribute *attr, char *buf)
 353 {
 354         struct koneplus_device *koneplus =
 355                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 356         return snprintf(buf, PAGE_SIZE, "%d\n", koneplus->actual_profile);
 357 }
 358
 359 static ssize_t koneplus_sysfs_set_actual_profile(struct device *dev,
 360                 struct device_attribute *attr, char const *buf, size_t size)
 361 {
 362         struct koneplus_device *koneplus;
 363         struct usb_device *usb_dev;
 364         unsigned long profile;
 365         int retval;
 366         struct koneplus_roccat_report roccat_report;
 367
 368         dev = dev->parent->parent;
 369         koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 370         usb_dev = interface_to_usbdev(to_usb_interface(dev));
 371
 372         retval = strict_strtoul(buf, 10, &profile);
 373         if (retval)
 374                 return retval;
 375
 376         if (profile > 4)
 377                 return -EINVAL;
 378
 379         mutex_lock(&koneplus->koneplus_lock);
 380
 381         retval = koneplus_set_actual_profile(usb_dev, profile);
 382         if (retval) {
 383                 mutex_unlock(&koneplus->koneplus_lock);
 384                 return retval;
 385         }
 386
 387         koneplus_profile_activated(koneplus, profile);
 388
 389         roccat_report.type = KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE;
 390         roccat_report.data1 = profile + 1;
 391         roccat_report.data2 = 0;
 392         roccat_report.profile = profile + 1;
 393         roccat_report_event(koneplus->chrdev_minor,
 394                         (uint8_t const *)&roccat_report);
 395
 396         mutex_unlock(&koneplus->koneplus_lock);
 397
 398         return size;
 399 }
 400
 401 static ssize_t koneplus_sysfs_show_firmware_version(struct device *dev,
 402                 struct device_attribute *attr, char *buf)
 403 {
 404         struct koneplus_device *koneplus =
 405                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 406         return snprintf(buf, PAGE_SIZE, "%d\n", koneplus->info.firmware_version);
 407 }
 408
 409 static struct device_attribute koneplus_attributes[] = {
 410         __ATTR(actual_profile, 0660,
 411                         koneplus_sysfs_show_actual_profile,
 412                         koneplus_sysfs_set_actual_profile),
 413         __ATTR(startup_profile, 0660,
 414                         koneplus_sysfs_show_actual_profile,
 415                         koneplus_sysfs_set_actual_profile),
 416         __ATTR(firmware_version, 0440,
 417                         koneplus_sysfs_show_firmware_version, NULL),
 418         __ATTR_NULL
 419 };
 420
 421 static struct bin_attribute koneplus_bin_attributes[] = {
 422         {
 423                 .attr = { .name = "sensor", .mode = 0660 },
 424                 .size = sizeof(struct koneplus_sensor),
 425                 .read = koneplus_sysfs_read_sensor,
 426                 .write = koneplus_sysfs_write_sensor
 427         },
 428         {
 429                 .attr = { .name = "tcu", .mode = 0220 },
 430                 .size = sizeof(struct koneplus_tcu),
 431                 .write = koneplus_sysfs_write_tcu
 432         },
 433         {
 434                 .attr = { .name = "tcu_image", .mode = 0440 },
 435                 .size = sizeof(struct koneplus_tcu_image),
 436                 .read = koneplus_sysfs_read_tcu_image
 437         },
 438         {
 439                 .attr = { .name = "profile_settings", .mode = 0220 },
 440                 .size = sizeof(struct koneplus_profile_settings),
 441                 .write = koneplus_sysfs_write_profile_settings
 442         },
 443         {
 444                 .attr = { .name = "profile1_settings", .mode = 0440 },
 445                 .size = sizeof(struct koneplus_profile_settings),
 446                 .read = koneplus_sysfs_read_profilex_settings,
 447                 .private = &profile_numbers[0]
 448         },
 449         {
 450                 .attr = { .name = "profile2_settings", .mode = 0440 },
 451                 .size = sizeof(struct koneplus_profile_settings),
 452                 .read = koneplus_sysfs_read_profilex_settings,
 453                 .private = &profile_numbers[1]
 454         },
 455         {
 456                 .attr = { .name = "profile3_settings", .mode = 0440 },
 457                 .size = sizeof(struct koneplus_profile_settings),
 458                 .read = koneplus_sysfs_read_profilex_settings,
 459                 .private = &profile_numbers[2]
 460         },
 461         {
 462                 .attr = { .name = "profile4_settings", .mode = 0440 },
 463                 .size = sizeof(struct koneplus_profile_settings),
 464                 .read = koneplus_sysfs_read_profilex_settings,
 465                 .private = &profile_numbers[3]
 466         },
 467         {
 468                 .attr = { .name = "profile5_settings", .mode = 0440 },
 469                 .size = sizeof(struct koneplus_profile_settings),
 470                 .read = koneplus_sysfs_read_profilex_settings,
 471                 .private = &profile_numbers[4]
 472         },
 473         {
 474                 .attr = { .name = "profile_buttons", .mode = 0220 },
 475                 .size = sizeof(struct koneplus_profile_buttons),
 476                 .write = koneplus_sysfs_write_profile_buttons
 477         },
 478         {
 479                 .attr = { .name = "profile1_buttons", .mode = 0440 },
 480                 .size = sizeof(struct koneplus_profile_buttons),
 481                 .read = koneplus_sysfs_read_profilex_buttons,
 482                 .private = &profile_numbers[0]
 483         },
 484         {
 485                 .attr = { .name = "profile2_buttons", .mode = 0440 },
 486                 .size = sizeof(struct koneplus_profile_buttons),
 487                 .read = koneplus_sysfs_read_profilex_buttons,
 488                 .private = &profile_numbers[1]
 489         },
 490         {
 491                 .attr = { .name = "profile3_buttons", .mode = 0440 },
 492                 .size = sizeof(struct koneplus_profile_buttons),
 493                 .read = koneplus_sysfs_read_profilex_buttons,
 494                 .private = &profile_numbers[2]
 495         },
 496         {
 497                 .attr = { .name = "profile4_buttons", .mode = 0440 },
 498                 .size = sizeof(struct koneplus_profile_buttons),
 499                 .read = koneplus_sysfs_read_profilex_buttons,
 500                 .private = &profile_numbers[3]
 501         },
 502         {
 503                 .attr = { .name = "profile5_buttons", .mode = 0440 },
 504                 .size = sizeof(struct koneplus_profile_buttons),
 505                 .read = koneplus_sysfs_read_profilex_buttons,
 506                 .private = &profile_numbers[4]
 507         },
 508         {
 509                 .attr = { .name = "macro", .mode = 0220 },
 510                 .size = sizeof(struct koneplus_macro),
 511                 .write = koneplus_sysfs_write_macro
 512         },
 513         {
 514                 .attr = { .name = "talk", .mode = 0220 },
 515                 .size = sizeof(struct koneplus_talk),
 516                 .write = koneplus_sysfs_write_talk
 517         },
 518         __ATTR_NULL
 519 };
 520
 521 static int koneplus_init_koneplus_device_struct(struct usb_device *usb_dev,
 522                 struct koneplus_device *koneplus)
 523 {
 524         int retval, i;
 525         static uint wait = 200;
 526
 527         mutex_init(&koneplus->koneplus_lock);
 528
 529         retval = koneplus_get_info(usb_dev, &koneplus->info);
 530         if (retval)
 531                 return retval;
 532
 533         for (i = 0; i < 5; ++i) {
 534                 msleep(wait);
 535                 retval = koneplus_get_profile_settings(usb_dev,
 536                                 &koneplus->profile_settings[i], i);
 537                 if (retval)
 538                         return retval;
 539
 540                 msleep(wait);
 541                 retval = koneplus_get_profile_buttons(usb_dev,
 542                                 &koneplus->profile_buttons[i], i);
 543                 if (retval)
 544                         return retval;
 545         }
 546
 547         msleep(wait);
 548         retval = koneplus_get_actual_profile(usb_dev);
 549         if (retval < 0)
 550                 return retval;
 551         koneplus_profile_activated(koneplus, retval);
 552
 553         return 0;
 554 }
 555
 556 static int koneplus_init_specials(struct hid_device *hdev)
 557 {
 558         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 559         struct usb_device *usb_dev = interface_to_usbdev(intf);
 560         struct koneplus_device *koneplus;
 561         int retval;
 562
 563         if (intf->cur_altsetting->desc.bInterfaceProtocol
 564                         == USB_INTERFACE_PROTOCOL_MOUSE) {
 565
 566                 koneplus = kzalloc(sizeof(*koneplus), GFP_KERNEL);
 567                 if (!koneplus) {
 568                         hid_err(hdev, "can't alloc device descriptor\n");
 569                         return -ENOMEM;
 570                 }
 571                 hid_set_drvdata(hdev, koneplus);
 572
 573                 retval = koneplus_init_koneplus_device_struct(usb_dev, koneplus);
 574                 if (retval) {
 575                         hid_err(hdev, "couldn't init struct koneplus_device\n");
 576                         goto exit_free;
 577                 }
 578
 579                 retval = roccat_connect(koneplus_class, hdev,
 580                                 sizeof(struct koneplus_roccat_report));
 581                 if (retval < 0) {
 582                         hid_err(hdev, "couldn't init char dev\n");
 583                 } else {
 584                         koneplus->chrdev_minor = retval;
 585                         koneplus->roccat_claimed = 1;
 586                 }
 587         } else {
 588                 hid_set_drvdata(hdev, NULL);
 589         }
 590
 591         return 0;
 592 exit_free:
 593         kfree(koneplus);
 594         return retval;
 595 }
 596
 597 static void koneplus_remove_specials(struct hid_device *hdev)
 598 {
 599         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 600         struct koneplus_device *koneplus;
 601
 602         if (intf->cur_altsetting->desc.bInterfaceProtocol
 603                         == USB_INTERFACE_PROTOCOL_MOUSE) {
 604                 koneplus = hid_get_drvdata(hdev);
 605                 if (koneplus->roccat_claimed)
 606                         roccat_disconnect(koneplus->chrdev_minor);
 607                 kfree(koneplus);
 608         }
 609 }
 610
 611 static int koneplus_probe(struct hid_device *hdev,
 612                 const struct hid_device_id *id)
 613 {
 614         int retval;
 615
 616         retval = hid_parse(hdev);
 617         if (retval) {
 618                 hid_err(hdev, "parse failed\n");
 619                 goto exit;
 620         }
 621
 622         retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 623         if (retval) {
 624                 hid_err(hdev, "hw start failed\n");
 625                 goto exit;
 626         }
 627
 628         retval = koneplus_init_specials(hdev);
 629         if (retval) {
 630                 hid_err(hdev, "couldn't install mouse\n");
 631                 goto exit_stop;
 632         }
 633
 634         return 0;
 635
 636 exit_stop:
 637         hid_hw_stop(hdev);
 638 exit:
 639         return retval;
 640 }
 641
 642 static void koneplus_remove(struct hid_device *hdev)
 643 {
 644         koneplus_remove_specials(hdev);
 645         hid_hw_stop(hdev);
 646 }
 647
 648 static void koneplus_keep_values_up_to_date(struct koneplus_device *koneplus,
 649                 u8 const *data)
 650 {
 651         struct koneplus_mouse_report_button const *button_report;
 652
 653         switch (data[0]) {
 654         case KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON:
 655                 button_report = (struct koneplus_mouse_report_button const *)data;
 656                 switch (button_report->type) {
 657                 case KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE:
 658                         koneplus_profile_activated(koneplus, button_report->data1 - 1);
 659                         break;
 660                 }
 661                 break;
 662         }
 663 }
 664
 665 static void koneplus_report_to_chrdev(struct koneplus_device const *koneplus,
 666                 u8 const *data)
 667 {
 668         struct koneplus_roccat_report roccat_report;
 669         struct koneplus_mouse_report_button const *button_report;
 670
 671         if (data[0] != KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON)
 672                 return;
 673
 674         button_report = (struct koneplus_mouse_report_button const *)data;
 675
 676         if ((button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
 677                         button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER) &&
 678                         button_report->data2 != KONEPLUS_MOUSE_REPORT_BUTTON_ACTION_PRESS)
 679                 return;
 680
 681         roccat_report.type = button_report->type;
 682         roccat_report.data1 = button_report->data1;
 683         roccat_report.data2 = button_report->data2;
 684         roccat_report.profile = koneplus->actual_profile + 1;
 685         roccat_report_event(koneplus->chrdev_minor,
 686                         (uint8_t const *)&roccat_report);
 687 }
 688
 689 static int koneplus_raw_event(struct hid_device *hdev,
 690                 struct hid_report *report, u8 *data, int size)
 691 {
 692         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 693         struct koneplus_device *koneplus = hid_get_drvdata(hdev);
 694
 695         if (intf->cur_altsetting->desc.bInterfaceProtocol
 696                         != USB_INTERFACE_PROTOCOL_MOUSE)
 697                 return 0;
 698
 699         if (koneplus == NULL)
 700                 return 0;
 701
 702         koneplus_keep_values_up_to_date(koneplus, data);
 703
 704         if (koneplus->roccat_claimed)
 705                 koneplus_report_to_chrdev(koneplus, data);
 706
 707         return 0;
 708 }
 709
 710 static const struct hid_device_id koneplus_devices[] = {
 711         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
 712         { }
 713 };
 714
 715 MODULE_DEVICE_TABLE(hid, koneplus_devices);
 716
 717 static struct hid_driver koneplus_driver = {
 718                 .name = "koneplus",
 719                 .id_table = koneplus_devices,
 720                 .probe = koneplus_probe,
 721                 .remove = koneplus_remove,
 722                 .raw_event = koneplus_raw_event
 723 };
 724
 725 static int __init koneplus_init(void)
 726 {
 727         int retval;
 728
 729         /* class name has to be same as driver name */
 730         koneplus_class = class_create(THIS_MODULE, "koneplus");
 731         if (IS_ERR(koneplus_class))
 732                 return PTR_ERR(koneplus_class);
 733         koneplus_class->dev_attrs = koneplus_attributes;
 734         koneplus_class->dev_bin_attrs = koneplus_bin_attributes;
 735
 736         retval = hid_register_driver(&koneplus_driver);
 737         if (retval)
 738                 class_destroy(koneplus_class);
 739         return retval;
 740 }
 741
 742 static void __exit koneplus_exit(void)
 743 {
 744         hid_unregister_driver(&koneplus_driver);
 745         class_destroy(koneplus_class);
 746 }
 747
 748 module_init(koneplus_init);
 749 module_exit(koneplus_exit);
 750
 751 MODULE_AUTHOR("Stefan Achatz");
 752 MODULE_DESCRIPTION("USB Roccat Kone[+] driver");
 753 MODULE_LICENSE("GPL v2");