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 static DEVICE_ATTR(actual_profile, 0660,
 314                    kovaplus_sysfs_show_actual_profile,
 315                    kovaplus_sysfs_set_actual_profile);
 316
 317 static ssize_t kovaplus_sysfs_show_actual_cpi(struct device *dev,
 318                 struct device_attribute *attr, char *buf)
 319 {
 320         struct kovaplus_device *kovaplus =
 321                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 322         return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_cpi);
 323 }
 324 static DEVICE_ATTR(actual_cpi, 0440, kovaplus_sysfs_show_actual_cpi, NULL);
 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 static DEVICE_ATTR(actual_sensitivity_x, 0440,
 334                    kovaplus_sysfs_show_actual_sensitivity_x, NULL);
 335
 336 static ssize_t kovaplus_sysfs_show_actual_sensitivity_y(struct device *dev,
 337                 struct device_attribute *attr, char *buf)
 338 {
 339         struct kovaplus_device *kovaplus =
 340                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 341         return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_y_sensitivity);
 342 }
 343 static DEVICE_ATTR(actual_sensitivity_y, 0440,
 344                    kovaplus_sysfs_show_actual_sensitivity_y, NULL);
 345
 346 static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev,
 347                 struct device_attribute *attr, char *buf)
 348 {
 349         struct kovaplus_device *kovaplus;
 350         struct usb_device *usb_dev;
 351         struct kovaplus_info info;
 352
 353         dev = dev->parent->parent;
 354         kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 355         usb_dev = interface_to_usbdev(to_usb_interface(dev));
 356
 357         mutex_lock(&kovaplus->kovaplus_lock);
 358         roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
 359                         &info, KOVAPLUS_SIZE_INFO);
 360         mutex_unlock(&kovaplus->kovaplus_lock);
 361
 362         return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
 363 }
 364 static DEVICE_ATTR(firmware_version, 0440,
 365                    kovaplus_sysfs_show_firmware_version, NULL);
 366
 367 static struct attribute *kovaplus_attrs[] = {
 368         &dev_attr_actual_cpi.attr,
 369         &dev_attr_firmware_version.attr,
 370         &dev_attr_actual_profile.attr,
 371         &dev_attr_actual_sensitivity_x.attr,
 372         &dev_attr_actual_sensitivity_y.attr,
 373         NULL,
 374 };
 375 ATTRIBUTE_GROUPS(kovaplus);
 376
 377 static struct bin_attribute kovaplus_bin_attributes[] = {
 378         KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL),
 379         KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO),
 380         KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS),
 381         KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS),
 382         {
 383                 .attr = { .name = "profile1_settings", .mode = 0440 },
 384                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 385                 .read = kovaplus_sysfs_read_profilex_settings,
 386                 .private = &profile_numbers[0]
 387         },
 388         {
 389                 .attr = { .name = "profile2_settings", .mode = 0440 },
 390                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 391                 .read = kovaplus_sysfs_read_profilex_settings,
 392                 .private = &profile_numbers[1]
 393         },
 394         {
 395                 .attr = { .name = "profile3_settings", .mode = 0440 },
 396                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 397                 .read = kovaplus_sysfs_read_profilex_settings,
 398                 .private = &profile_numbers[2]
 399         },
 400         {
 401                 .attr = { .name = "profile4_settings", .mode = 0440 },
 402                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 403                 .read = kovaplus_sysfs_read_profilex_settings,
 404                 .private = &profile_numbers[3]
 405         },
 406         {
 407                 .attr = { .name = "profile5_settings", .mode = 0440 },
 408                 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 409                 .read = kovaplus_sysfs_read_profilex_settings,
 410                 .private = &profile_numbers[4]
 411         },
 412         {
 413                 .attr = { .name = "profile1_buttons", .mode = 0440 },
 414                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 415                 .read = kovaplus_sysfs_read_profilex_buttons,
 416                 .private = &profile_numbers[0]
 417         },
 418         {
 419                 .attr = { .name = "profile2_buttons", .mode = 0440 },
 420                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 421                 .read = kovaplus_sysfs_read_profilex_buttons,
 422                 .private = &profile_numbers[1]
 423         },
 424         {
 425                 .attr = { .name = "profile3_buttons", .mode = 0440 },
 426                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 427                 .read = kovaplus_sysfs_read_profilex_buttons,
 428                 .private = &profile_numbers[2]
 429         },
 430         {
 431                 .attr = { .name = "profile4_buttons", .mode = 0440 },
 432                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 433                 .read = kovaplus_sysfs_read_profilex_buttons,
 434                 .private = &profile_numbers[3]
 435         },
 436         {
 437                 .attr = { .name = "profile5_buttons", .mode = 0440 },
 438                 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 439                 .read = kovaplus_sysfs_read_profilex_buttons,
 440                 .private = &profile_numbers[4]
 441         },
 442         __ATTR_NULL
 443 };
 444
 445 static int kovaplus_init_kovaplus_device_struct(struct usb_device *usb_dev,
 446                 struct kovaplus_device *kovaplus)
 447 {
 448         int retval, i;
 449         static uint wait = 70; /* device will freeze with just 60 */
 450
 451         mutex_init(&kovaplus->kovaplus_lock);
 452
 453         for (i = 0; i < 5; ++i) {
 454                 msleep(wait);
 455                 retval = kovaplus_get_profile_settings(usb_dev,
 456                                 &kovaplus->profile_settings[i], i);
 457                 if (retval)
 458                         return retval;
 459
 460                 msleep(wait);
 461                 retval = kovaplus_get_profile_buttons(usb_dev,
 462                                 &kovaplus->profile_buttons[i], i);
 463                 if (retval)
 464                         return retval;
 465         }
 466
 467         msleep(wait);
 468         retval = kovaplus_get_actual_profile(usb_dev);
 469         if (retval < 0)
 470                 return retval;
 471         kovaplus_profile_activated(kovaplus, retval);
 472
 473         return 0;
 474 }
 475
 476 static int kovaplus_init_specials(struct hid_device *hdev)
 477 {
 478         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 479         struct usb_device *usb_dev = interface_to_usbdev(intf);
 480         struct kovaplus_device *kovaplus;
 481         int retval;
 482
 483         if (intf->cur_altsetting->desc.bInterfaceProtocol
 484                         == USB_INTERFACE_PROTOCOL_MOUSE) {
 485
 486                 kovaplus = kzalloc(sizeof(*kovaplus), GFP_KERNEL);
 487                 if (!kovaplus) {
 488                         hid_err(hdev, "can't alloc device descriptor\n");
 489                         return -ENOMEM;
 490                 }
 491                 hid_set_drvdata(hdev, kovaplus);
 492
 493                 retval = kovaplus_init_kovaplus_device_struct(usb_dev, kovaplus);
 494                 if (retval) {
 495                         hid_err(hdev, "couldn't init struct kovaplus_device\n");
 496                         goto exit_free;
 497                 }
 498
 499                 retval = roccat_connect(kovaplus_class, hdev,
 500                                 sizeof(struct kovaplus_roccat_report));
 501                 if (retval < 0) {
 502                         hid_err(hdev, "couldn't init char dev\n");
 503                 } else {
 504                         kovaplus->chrdev_minor = retval;
 505                         kovaplus->roccat_claimed = 1;
 506                 }
 507
 508         } else {
 509                 hid_set_drvdata(hdev, NULL);
 510         }
 511
 512         return 0;
 513 exit_free:
 514         kfree(kovaplus);
 515         return retval;
 516 }
 517
 518 static void kovaplus_remove_specials(struct hid_device *hdev)
 519 {
 520         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 521         struct kovaplus_device *kovaplus;
 522
 523         if (intf->cur_altsetting->desc.bInterfaceProtocol
 524                         == USB_INTERFACE_PROTOCOL_MOUSE) {
 525                 kovaplus = hid_get_drvdata(hdev);
 526                 if (kovaplus->roccat_claimed)
 527                         roccat_disconnect(kovaplus->chrdev_minor);
 528                 kfree(kovaplus);
 529         }
 530 }
 531
 532 static int kovaplus_probe(struct hid_device *hdev,
 533                 const struct hid_device_id *id)
 534 {
 535         int retval;
 536
 537         retval = hid_parse(hdev);
 538         if (retval) {
 539                 hid_err(hdev, "parse failed\n");
 540                 goto exit;
 541         }
 542
 543         retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 544         if (retval) {
 545                 hid_err(hdev, "hw start failed\n");
 546                 goto exit;
 547         }
 548
 549         retval = kovaplus_init_specials(hdev);
 550         if (retval) {
 551                 hid_err(hdev, "couldn't install mouse\n");
 552                 goto exit_stop;
 553         }
 554
 555         return 0;
 556
 557 exit_stop:
 558         hid_hw_stop(hdev);
 559 exit:
 560         return retval;
 561 }
 562
 563 static void kovaplus_remove(struct hid_device *hdev)
 564 {
 565         kovaplus_remove_specials(hdev);
 566         hid_hw_stop(hdev);
 567 }
 568
 569 static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus,
 570                 u8 const *data)
 571 {
 572         struct kovaplus_mouse_report_button const *button_report;
 573
 574         if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
 575                 return;
 576
 577         button_report = (struct kovaplus_mouse_report_button const *)data;
 578
 579         switch (button_report->type) {
 580         case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1:
 581                 kovaplus_profile_activated(kovaplus, button_report->data1 - 1);
 582                 break;
 583         case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI:
 584                 kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1);
 585         case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
 586                 kovaplus->actual_x_sensitivity = button_report->data1;
 587                 kovaplus->actual_y_sensitivity = button_report->data2;
 588         }
 589 }
 590
 591 static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus,
 592                 u8 const *data)
 593 {
 594         struct kovaplus_roccat_report roccat_report;
 595         struct kovaplus_mouse_report_button const *button_report;
 596
 597         if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
 598                 return;
 599
 600         button_report = (struct kovaplus_mouse_report_button const *)data;
 601
 602         if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2)
 603                 return;
 604
 605         roccat_report.type = button_report->type;
 606         roccat_report.profile = kovaplus->actual_profile + 1;
 607
 608         if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO ||
 609                         roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT ||
 610                         roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
 611                         roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER)
 612                 roccat_report.button = button_report->data1;
 613         else
 614                 roccat_report.button = 0;
 615
 616         if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI)
 617                 roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1);
 618         else
 619                 roccat_report.data1 = button_report->data1;
 620
 621         roccat_report.data2 = button_report->data2;
 622
 623         roccat_report_event(kovaplus->chrdev_minor,
 624                         (uint8_t const *)&roccat_report);
 625 }
 626
 627 static int kovaplus_raw_event(struct hid_device *hdev,
 628                 struct hid_report *report, u8 *data, int size)
 629 {
 630         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 631         struct kovaplus_device *kovaplus = hid_get_drvdata(hdev);
 632
 633         if (intf->cur_altsetting->desc.bInterfaceProtocol
 634                         != USB_INTERFACE_PROTOCOL_MOUSE)
 635                 return 0;
 636
 637         if (kovaplus == NULL)
 638                 return 0;
 639
 640         kovaplus_keep_values_up_to_date(kovaplus, data);
 641
 642         if (kovaplus->roccat_claimed)
 643                 kovaplus_report_to_chrdev(kovaplus, data);
 644
 645         return 0;
 646 }
 647
 648 static const struct hid_device_id kovaplus_devices[] = {
 649         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
 650         { }
 651 };
 652
 653 MODULE_DEVICE_TABLE(hid, kovaplus_devices);
 654
 655 static struct hid_driver kovaplus_driver = {
 656                 .name = "kovaplus",
 657                 .id_table = kovaplus_devices,
 658                 .probe = kovaplus_probe,
 659                 .remove = kovaplus_remove,
 660                 .raw_event = kovaplus_raw_event
 661 };
 662
 663 static int __init kovaplus_init(void)
 664 {
 665         int retval;
 666
 667         kovaplus_class = class_create(THIS_MODULE, "kovaplus");
 668         if (IS_ERR(kovaplus_class))
 669                 return PTR_ERR(kovaplus_class);
 670         kovaplus_class->dev_groups = kovaplus_groups;
 671         kovaplus_class->dev_bin_attrs = kovaplus_bin_attributes;
 672
 673         retval = hid_register_driver(&kovaplus_driver);
 674         if (retval)
 675                 class_destroy(kovaplus_class);
 676         return retval;
 677 }
 678
 679 static void __exit kovaplus_exit(void)
 680 {
 681         hid_unregister_driver(&kovaplus_driver);
 682         class_destroy(kovaplus_class);
 683 }
 684
 685 module_init(kovaplus_init);
 686 module_exit(kovaplus_exit);
 687
 688 MODULE_AUTHOR("Stefan Achatz");
 689 MODULE_DESCRIPTION("USB Roccat Kova[+] driver");
 690 MODULE_LICENSE("GPL v2");