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 KOVAPLUS_SYSFS_RW(thingy, THINGY); \ 201 static struct bin_attribute bin_attr_##thingy = { \ 202 .attr = { .name = #thingy, .mode = 0660 }, \ 203 .size = KOVAPLUS_SIZE_ ## THINGY, \ 204 .read = kovaplus_sysfs_read_ ## thingy, \ 205 .write = kovaplus_sysfs_write_ ## thingy \ 206 } 207 208 #define KOVAPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \ 209 KOVAPLUS_SYSFS_W(thingy, THINGY); \ 210 static struct bin_attribute bin_attr_##thingy = { \ 211 .attr = { .name = #thingy, .mode = 0220 }, \ 212 .size = KOVAPLUS_SIZE_ ## THINGY, \ 213 .write = kovaplus_sysfs_write_ ## thingy \ 214 } 215 KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL); 216 KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO); 217 KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS); 218 KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS); 219 220 static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp, 221 struct kobject *kobj, struct bin_attribute *attr, char *buf, 222 loff_t off, size_t count) 223 { 224 struct device *dev = 225 container_of(kobj, struct device, kobj)->parent->parent; 226 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); 227 ssize_t retval; 228 229 retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private), 230 KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS); 231 if (retval) 232 return retval; 233 234 return kovaplus_sysfs_read(fp, kobj, buf, off, count, 235 KOVAPLUS_SIZE_PROFILE_SETTINGS, 236 KOVAPLUS_COMMAND_PROFILE_SETTINGS); 237 } 238 239 static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp, 240 struct kobject *kobj, struct bin_attribute *attr, char *buf, 241 loff_t off, size_t count) 242 { 243 struct device *dev = 244 container_of(kobj, struct device, kobj)->parent->parent; 245 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); 246 ssize_t retval; 247 248 retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private), 249 KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS); 250 if (retval) 251 return retval; 252 253 return kovaplus_sysfs_read(fp, kobj, buf, off, count, 254 KOVAPLUS_SIZE_PROFILE_BUTTONS, 255 KOVAPLUS_COMMAND_PROFILE_BUTTONS); 256 } 257 258 #define PROFILE_ATTR(number) \ 259 static struct bin_attribute bin_attr_profile##number##_settings = { \ 260 .attr = { .name = "profile" #number "_settings", .mode = 0440 }, \ 261 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS, \ 262 .read = kovaplus_sysfs_read_profilex_settings, \ 263 .private = &profile_numbers[number-1], \ 264 }; \ 265 static struct bin_attribute bin_attr_profile##number##_buttons = { \ 266 .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \ 267 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS, \ 268 .read = kovaplus_sysfs_read_profilex_buttons, \ 269 .private = &profile_numbers[number-1], \ 270 }; 271 PROFILE_ATTR(1); 272 PROFILE_ATTR(2); 273 PROFILE_ATTR(3); 274 PROFILE_ATTR(4); 275 PROFILE_ATTR(5); 276 277 static ssize_t kovaplus_sysfs_show_actual_profile(struct device *dev, 278 struct device_attribute *attr, char *buf) 279 { 280 struct kovaplus_device *kovaplus = 281 hid_get_drvdata(dev_get_drvdata(dev->parent->parent)); 282 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_profile); 283 } 284 285 static ssize_t kovaplus_sysfs_set_actual_profile(struct device *dev, 286 struct device_attribute *attr, char const *buf, size_t size) 287 { 288 struct kovaplus_device *kovaplus; 289 struct usb_device *usb_dev; 290 unsigned long profile; 291 int retval; 292 struct kovaplus_roccat_report roccat_report; 293 294 dev = dev->parent->parent; 295 kovaplus = hid_get_drvdata(dev_get_drvdata(dev)); 296 usb_dev = interface_to_usbdev(to_usb_interface(dev)); 297 298 retval = kstrtoul(buf, 10, &profile); 299 if (retval) 300 return retval; 301 302 if (profile >= 5) 303 return -EINVAL; 304 305 mutex_lock(&kovaplus->kovaplus_lock); 306 retval = kovaplus_set_actual_profile(usb_dev, profile); 307 if (retval) { 308 mutex_unlock(&kovaplus->kovaplus_lock); 309 return retval; 310 } 311 312 kovaplus_profile_activated(kovaplus, profile); 313 314 roccat_report.type = KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1; 315 roccat_report.profile = profile + 1; 316 roccat_report.button = 0; 317 roccat_report.data1 = profile + 1; 318 roccat_report.data2 = 0; 319 roccat_report_event(kovaplus->chrdev_minor, 320 (uint8_t const *)&roccat_report); 321 322 mutex_unlock(&kovaplus->kovaplus_lock); 323 324 return size; 325 } 326 static DEVICE_ATTR(actual_profile, 0660, 327 kovaplus_sysfs_show_actual_profile, 328 kovaplus_sysfs_set_actual_profile); 329 330 static ssize_t kovaplus_sysfs_show_actual_cpi(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_cpi); 336 } 337 static DEVICE_ATTR(actual_cpi, 0440, kovaplus_sysfs_show_actual_cpi, NULL); 338 339 static ssize_t kovaplus_sysfs_show_actual_sensitivity_x(struct device *dev, 340 struct device_attribute *attr, char *buf) 341 { 342 struct kovaplus_device *kovaplus = 343 hid_get_drvdata(dev_get_drvdata(dev->parent->parent)); 344 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_x_sensitivity); 345 } 346 static DEVICE_ATTR(actual_sensitivity_x, 0440, 347 kovaplus_sysfs_show_actual_sensitivity_x, NULL); 348 349 static ssize_t kovaplus_sysfs_show_actual_sensitivity_y(struct device *dev, 350 struct device_attribute *attr, char *buf) 351 { 352 struct kovaplus_device *kovaplus = 353 hid_get_drvdata(dev_get_drvdata(dev->parent->parent)); 354 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_y_sensitivity); 355 } 356 static DEVICE_ATTR(actual_sensitivity_y, 0440, 357 kovaplus_sysfs_show_actual_sensitivity_y, NULL); 358 359 static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev, 360 struct device_attribute *attr, char *buf) 361 { 362 struct kovaplus_device *kovaplus; 363 struct usb_device *usb_dev; 364 struct kovaplus_info info; 365 366 dev = dev->parent->parent; 367 kovaplus = hid_get_drvdata(dev_get_drvdata(dev)); 368 usb_dev = interface_to_usbdev(to_usb_interface(dev)); 369 370 mutex_lock(&kovaplus->kovaplus_lock); 371 roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO, 372 &info, KOVAPLUS_SIZE_INFO); 373 mutex_unlock(&kovaplus->kovaplus_lock); 374 375 return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version); 376 } 377 static DEVICE_ATTR(firmware_version, 0440, 378 kovaplus_sysfs_show_firmware_version, NULL); 379 380 static struct attribute *kovaplus_attrs[] = { 381 &dev_attr_actual_cpi.attr, 382 &dev_attr_firmware_version.attr, 383 &dev_attr_actual_profile.attr, 384 &dev_attr_actual_sensitivity_x.attr, 385 &dev_attr_actual_sensitivity_y.attr, 386 NULL, 387 }; 388 389 static struct bin_attribute *kovaplus_bin_attributes[] = { 390 &bin_attr_control, 391 &bin_attr_info, 392 &bin_attr_profile_settings, 393 &bin_attr_profile_buttons, 394 &bin_attr_profile1_settings, 395 &bin_attr_profile2_settings, 396 &bin_attr_profile3_settings, 397 &bin_attr_profile4_settings, 398 &bin_attr_profile5_settings, 399 &bin_attr_profile1_buttons, 400 &bin_attr_profile2_buttons, 401 &bin_attr_profile3_buttons, 402 &bin_attr_profile4_buttons, 403 &bin_attr_profile5_buttons, 404 NULL, 405 }; 406 407 static const struct attribute_group kovaplus_group = { 408 .attrs = kovaplus_attrs, 409 .bin_attrs = kovaplus_bin_attributes, 410 }; 411 412 static const struct attribute_group *kovaplus_groups[] = { 413 &kovaplus_group, 414 NULL, 415 }; 416 417 static int kovaplus_init_kovaplus_device_struct(struct usb_device *usb_dev, 418 struct kovaplus_device *kovaplus) 419 { 420 int retval, i; 421 static uint wait = 70; /* device will freeze with just 60 */ 422 423 mutex_init(&kovaplus->kovaplus_lock); 424 425 for (i = 0; i < 5; ++i) { 426 msleep(wait); 427 retval = kovaplus_get_profile_settings(usb_dev, 428 &kovaplus->profile_settings[i], i); 429 if (retval) 430 return retval; 431 432 msleep(wait); 433 retval = kovaplus_get_profile_buttons(usb_dev, 434 &kovaplus->profile_buttons[i], i); 435 if (retval) 436 return retval; 437 } 438 439 msleep(wait); 440 retval = kovaplus_get_actual_profile(usb_dev); 441 if (retval < 0) 442 return retval; 443 kovaplus_profile_activated(kovaplus, retval); 444 445 return 0; 446 } 447 448 static int kovaplus_init_specials(struct hid_device *hdev) 449 { 450 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 451 struct usb_device *usb_dev = interface_to_usbdev(intf); 452 struct kovaplus_device *kovaplus; 453 int retval; 454 455 if (intf->cur_altsetting->desc.bInterfaceProtocol 456 == USB_INTERFACE_PROTOCOL_MOUSE) { 457 458 kovaplus = kzalloc(sizeof(*kovaplus), GFP_KERNEL); 459 if (!kovaplus) { 460 hid_err(hdev, "can't alloc device descriptor\n"); 461 return -ENOMEM; 462 } 463 hid_set_drvdata(hdev, kovaplus); 464 465 retval = kovaplus_init_kovaplus_device_struct(usb_dev, kovaplus); 466 if (retval) { 467 hid_err(hdev, "couldn't init struct kovaplus_device\n"); 468 goto exit_free; 469 } 470 471 retval = roccat_connect(kovaplus_class, hdev, 472 sizeof(struct kovaplus_roccat_report)); 473 if (retval < 0) { 474 hid_err(hdev, "couldn't init char dev\n"); 475 } else { 476 kovaplus->chrdev_minor = retval; 477 kovaplus->roccat_claimed = 1; 478 } 479 480 } else { 481 hid_set_drvdata(hdev, NULL); 482 } 483 484 return 0; 485 exit_free: 486 kfree(kovaplus); 487 return retval; 488 } 489 490 static void kovaplus_remove_specials(struct hid_device *hdev) 491 { 492 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 493 struct kovaplus_device *kovaplus; 494 495 if (intf->cur_altsetting->desc.bInterfaceProtocol 496 == USB_INTERFACE_PROTOCOL_MOUSE) { 497 kovaplus = hid_get_drvdata(hdev); 498 if (kovaplus->roccat_claimed) 499 roccat_disconnect(kovaplus->chrdev_minor); 500 kfree(kovaplus); 501 } 502 } 503 504 static int kovaplus_probe(struct hid_device *hdev, 505 const struct hid_device_id *id) 506 { 507 int retval; 508 509 retval = hid_parse(hdev); 510 if (retval) { 511 hid_err(hdev, "parse failed\n"); 512 goto exit; 513 } 514 515 retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 516 if (retval) { 517 hid_err(hdev, "hw start failed\n"); 518 goto exit; 519 } 520 521 retval = kovaplus_init_specials(hdev); 522 if (retval) { 523 hid_err(hdev, "couldn't install mouse\n"); 524 goto exit_stop; 525 } 526 527 return 0; 528 529 exit_stop: 530 hid_hw_stop(hdev); 531 exit: 532 return retval; 533 } 534 535 static void kovaplus_remove(struct hid_device *hdev) 536 { 537 kovaplus_remove_specials(hdev); 538 hid_hw_stop(hdev); 539 } 540 541 static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus, 542 u8 const *data) 543 { 544 struct kovaplus_mouse_report_button const *button_report; 545 546 if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON) 547 return; 548 549 button_report = (struct kovaplus_mouse_report_button const *)data; 550 551 switch (button_report->type) { 552 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1: 553 kovaplus_profile_activated(kovaplus, button_report->data1 - 1); 554 break; 555 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI: 556 kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1); 557 break; 558 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY: 559 kovaplus->actual_x_sensitivity = button_report->data1; 560 kovaplus->actual_y_sensitivity = button_report->data2; 561 break; 562 default: 563 break; 564 } 565 } 566 567 static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus, 568 u8 const *data) 569 { 570 struct kovaplus_roccat_report roccat_report; 571 struct kovaplus_mouse_report_button const *button_report; 572 573 if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON) 574 return; 575 576 button_report = (struct kovaplus_mouse_report_button const *)data; 577 578 if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2) 579 return; 580 581 roccat_report.type = button_report->type; 582 roccat_report.profile = kovaplus->actual_profile + 1; 583 584 if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO || 585 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT || 586 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH || 587 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER) 588 roccat_report.button = button_report->data1; 589 else 590 roccat_report.button = 0; 591 592 if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI) 593 roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1); 594 else 595 roccat_report.data1 = button_report->data1; 596 597 roccat_report.data2 = button_report->data2; 598 599 roccat_report_event(kovaplus->chrdev_minor, 600 (uint8_t const *)&roccat_report); 601 } 602 603 static int kovaplus_raw_event(struct hid_device *hdev, 604 struct hid_report *report, u8 *data, int size) 605 { 606 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 607 struct kovaplus_device *kovaplus = hid_get_drvdata(hdev); 608 609 if (intf->cur_altsetting->desc.bInterfaceProtocol 610 != USB_INTERFACE_PROTOCOL_MOUSE) 611 return 0; 612 613 if (kovaplus == NULL) 614 return 0; 615 616 kovaplus_keep_values_up_to_date(kovaplus, data); 617 618 if (kovaplus->roccat_claimed) 619 kovaplus_report_to_chrdev(kovaplus, data); 620 621 return 0; 622 } 623 624 static const struct hid_device_id kovaplus_devices[] = { 625 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) }, 626 { } 627 }; 628 629 MODULE_DEVICE_TABLE(hid, kovaplus_devices); 630 631 static struct hid_driver kovaplus_driver = { 632 .name = "kovaplus", 633 .id_table = kovaplus_devices, 634 .probe = kovaplus_probe, 635 .remove = kovaplus_remove, 636 .raw_event = kovaplus_raw_event 637 }; 638 639 static int __init kovaplus_init(void) 640 { 641 int retval; 642 643 kovaplus_class = class_create(THIS_MODULE, "kovaplus"); 644 if (IS_ERR(kovaplus_class)) 645 return PTR_ERR(kovaplus_class); 646 kovaplus_class->dev_groups = kovaplus_groups; 647 648 retval = hid_register_driver(&kovaplus_driver); 649 if (retval) 650 class_destroy(kovaplus_class); 651 return retval; 652 } 653 654 static void __exit kovaplus_exit(void) 655 { 656 hid_unregister_driver(&kovaplus_driver); 657 class_destroy(kovaplus_class); 658 } 659 660 module_init(kovaplus_init); 661 module_exit(kovaplus_exit); 662 663 MODULE_AUTHOR("Stefan Achatz"); 664 MODULE_DESCRIPTION("USB Roccat Kova[+] driver"); 665 MODULE_LICENSE("GPL v2"); 666