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Commit | Line | Data |
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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
14bf62cd SA |
2 | /* |
3 | * Roccat Kone driver for Linux | |
4 | * | |
5 | * Copyright (c) 2010 Stefan Achatz <erazor_de@users.sourceforge.net> | |
6 | */ | |
7 | ||
8 | /* | |
14bf62cd SA |
9 | */ |
10 | ||
11 | /* | |
12 | * Roccat Kone is a gamer mouse which consists of a mouse part and a keyboard | |
13 | * part. The keyboard part enables the mouse to execute stored macros with mixed | |
14 | * key- and button-events. | |
15 | * | |
16 | * TODO implement on-the-fly polling-rate change | |
17 | * The windows driver has the ability to change the polling rate of the | |
18 | * device on the press of a mousebutton. | |
19 | * Is it possible to remove and reinstall the urb in raw-event- or any | |
20 | * other handler, or to defer this action to be executed somewhere else? | |
21 | * | |
14bf62cd SA |
22 | * TODO is it possible to overwrite group for sysfs attributes via udev? |
23 | */ | |
24 | ||
25 | #include <linux/device.h> | |
26 | #include <linux/input.h> | |
27 | #include <linux/hid.h> | |
14bf62cd | 28 | #include <linux/module.h> |
ed28f04b | 29 | #include <linux/slab.h> |
5dc0c983 | 30 | #include <linux/hid-roccat.h> |
14bf62cd | 31 | #include "hid-ids.h" |
5772f636 | 32 | #include "hid-roccat-common.h" |
14bf62cd SA |
33 | #include "hid-roccat-kone.h" |
34 | ||
14a057f8 SA |
35 | static uint profile_numbers[5] = {0, 1, 2, 3, 4}; |
36 | ||
bd9c35d0 SA |
37 | static void kone_profile_activated(struct kone_device *kone, uint new_profile) |
38 | { | |
39 | kone->actual_profile = new_profile; | |
40 | kone->actual_dpi = kone->profiles[new_profile - 1].startup_dpi; | |
41 | } | |
42 | ||
3200a6a5 SA |
43 | static void kone_profile_report(struct kone_device *kone, uint new_profile) |
44 | { | |
45 | struct kone_roccat_report roccat_report; | |
6354b7e2 | 46 | |
3200a6a5 SA |
47 | roccat_report.event = kone_mouse_event_switch_profile; |
48 | roccat_report.value = new_profile; | |
49 | roccat_report.key = 0; | |
50 | roccat_report_event(kone->chrdev_minor, (uint8_t *)&roccat_report); | |
51 | } | |
52 | ||
1edd5b42 SA |
53 | static int kone_receive(struct usb_device *usb_dev, uint usb_command, |
54 | void *data, uint size) | |
55 | { | |
56 | char *buf; | |
57 | int len; | |
58 | ||
59 | buf = kmalloc(size, GFP_KERNEL); | |
60 | if (buf == NULL) | |
61 | return -ENOMEM; | |
62 | ||
63 | len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), | |
64 | HID_REQ_GET_REPORT, | |
65 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, | |
66 | usb_command, 0, buf, size, USB_CTRL_SET_TIMEOUT); | |
67 | ||
68 | memcpy(data, buf, size); | |
69 | kfree(buf); | |
70 | return ((len < 0) ? len : ((len != size) ? -EIO : 0)); | |
71 | } | |
72 | ||
73 | static int kone_send(struct usb_device *usb_dev, uint usb_command, | |
74 | void const *data, uint size) | |
75 | { | |
76 | char *buf; | |
77 | int len; | |
78 | ||
4c33a885 | 79 | buf = kmemdup(data, size, GFP_KERNEL); |
1edd5b42 SA |
80 | if (buf == NULL) |
81 | return -ENOMEM; | |
82 | ||
1edd5b42 SA |
83 | len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), |
84 | HID_REQ_SET_REPORT, | |
85 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, | |
86 | usb_command, 0, buf, size, USB_CTRL_SET_TIMEOUT); | |
87 | ||
88 | kfree(buf); | |
89 | return ((len < 0) ? len : ((len != size) ? -EIO : 0)); | |
90 | } | |
91 | ||
5012aada SA |
92 | /* kone_class is used for creating sysfs attributes via roccat char device */ |
93 | static struct class *kone_class; | |
94 | ||
14bf62cd SA |
95 | static void kone_set_settings_checksum(struct kone_settings *settings) |
96 | { | |
97 | uint16_t checksum = 0; | |
98 | unsigned char *address = (unsigned char *)settings; | |
99 | int i; | |
100 | ||
101 | for (i = 0; i < sizeof(struct kone_settings) - 2; ++i, ++address) | |
102 | checksum += *address; | |
103 | settings->checksum = cpu_to_le16(checksum); | |
104 | } | |
105 | ||
106 | /* | |
107 | * Checks success after writing data to mouse | |
108 | * On success returns 0 | |
109 | * On failure returns errno | |
110 | */ | |
111 | static int kone_check_write(struct usb_device *usb_dev) | |
112 | { | |
5772f636 SA |
113 | int retval; |
114 | uint8_t data; | |
14bf62cd SA |
115 | |
116 | do { | |
117 | /* | |
118 | * Mouse needs 50 msecs until it says ok, but there are | |
119 | * 30 more msecs needed for next write to work. | |
120 | */ | |
121 | msleep(80); | |
122 | ||
1edd5b42 | 123 | retval = kone_receive(usb_dev, |
5772f636 SA |
124 | kone_command_confirm_write, &data, 1); |
125 | if (retval) | |
126 | return retval; | |
14bf62cd SA |
127 | |
128 | /* | |
129 | * value of 3 seems to mean something like | |
130 | * "not finished yet, but it looks good" | |
131 | * So check again after a moment. | |
132 | */ | |
5772f636 | 133 | } while (data == 3); |
14bf62cd | 134 | |
5772f636 | 135 | if (data == 1) /* everything alright */ |
14bf62cd | 136 | return 0; |
5772f636 SA |
137 | |
138 | /* unknown answer */ | |
4ec141ad | 139 | dev_err(&usb_dev->dev, "got retval %d when checking write\n", data); |
5772f636 | 140 | return -EIO; |
14bf62cd SA |
141 | } |
142 | ||
143 | /* | |
144 | * Reads settings from mouse and stores it in @buf | |
14bf62cd SA |
145 | * On success returns 0 |
146 | * On failure returns errno | |
147 | */ | |
148 | static int kone_get_settings(struct usb_device *usb_dev, | |
149 | struct kone_settings *buf) | |
150 | { | |
1edd5b42 | 151 | return kone_receive(usb_dev, kone_command_settings, buf, |
5772f636 | 152 | sizeof(struct kone_settings)); |
14bf62cd SA |
153 | } |
154 | ||
155 | /* | |
156 | * Writes settings from @buf to mouse | |
157 | * On success returns 0 | |
158 | * On failure returns errno | |
159 | */ | |
160 | static int kone_set_settings(struct usb_device *usb_dev, | |
161 | struct kone_settings const *settings) | |
162 | { | |
5772f636 | 163 | int retval; |
6354b7e2 | 164 | |
1edd5b42 | 165 | retval = kone_send(usb_dev, kone_command_settings, |
5772f636 SA |
166 | settings, sizeof(struct kone_settings)); |
167 | if (retval) | |
168 | return retval; | |
169 | return kone_check_write(usb_dev); | |
14bf62cd SA |
170 | } |
171 | ||
172 | /* | |
173 | * Reads profile data from mouse and stores it in @buf | |
174 | * @number: profile number to read | |
175 | * On success returns 0 | |
176 | * On failure returns errno | |
177 | */ | |
178 | static int kone_get_profile(struct usb_device *usb_dev, | |
179 | struct kone_profile *buf, int number) | |
180 | { | |
181 | int len; | |
182 | ||
183 | if (number < 1 || number > 5) | |
184 | return -EINVAL; | |
185 | ||
186 | len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), | |
187 | USB_REQ_CLEAR_FEATURE, | |
188 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, | |
189 | kone_command_profile, number, buf, | |
190 | sizeof(struct kone_profile), USB_CTRL_SET_TIMEOUT); | |
191 | ||
192 | if (len != sizeof(struct kone_profile)) | |
193 | return -EIO; | |
194 | ||
195 | return 0; | |
196 | } | |
197 | ||
198 | /* | |
199 | * Writes profile data to mouse. | |
200 | * @number: profile number to write | |
201 | * On success returns 0 | |
202 | * On failure returns errno | |
203 | */ | |
204 | static int kone_set_profile(struct usb_device *usb_dev, | |
205 | struct kone_profile const *profile, int number) | |
206 | { | |
207 | int len; | |
208 | ||
209 | if (number < 1 || number > 5) | |
210 | return -EINVAL; | |
211 | ||
212 | len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), | |
213 | USB_REQ_SET_CONFIGURATION, | |
214 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, | |
5772f636 | 215 | kone_command_profile, number, (void *)profile, |
14bf62cd SA |
216 | sizeof(struct kone_profile), |
217 | USB_CTRL_SET_TIMEOUT); | |
218 | ||
219 | if (len != sizeof(struct kone_profile)) | |
220 | return len; | |
221 | ||
222 | if (kone_check_write(usb_dev)) | |
223 | return -EIO; | |
224 | ||
225 | return 0; | |
226 | } | |
227 | ||
228 | /* | |
229 | * Reads value of "fast-clip-weight" and stores it in @result | |
230 | * On success returns 0 | |
231 | * On failure returns errno | |
232 | */ | |
233 | static int kone_get_weight(struct usb_device *usb_dev, int *result) | |
234 | { | |
5772f636 SA |
235 | int retval; |
236 | uint8_t data; | |
14bf62cd | 237 | |
1edd5b42 | 238 | retval = kone_receive(usb_dev, kone_command_weight, &data, 1); |
14bf62cd | 239 | |
5772f636 SA |
240 | if (retval) |
241 | return retval; | |
14bf62cd | 242 | |
5772f636 | 243 | *result = (int)data; |
14bf62cd SA |
244 | return 0; |
245 | } | |
246 | ||
247 | /* | |
248 | * Reads firmware_version of mouse and stores it in @result | |
249 | * On success returns 0 | |
250 | * On failure returns errno | |
251 | */ | |
252 | static int kone_get_firmware_version(struct usb_device *usb_dev, int *result) | |
253 | { | |
5772f636 SA |
254 | int retval; |
255 | uint16_t data; | |
14bf62cd | 256 | |
1edd5b42 | 257 | retval = kone_receive(usb_dev, kone_command_firmware_version, |
5772f636 SA |
258 | &data, 2); |
259 | if (retval) | |
260 | return retval; | |
14bf62cd | 261 | |
5772f636 | 262 | *result = le16_to_cpu(data); |
14bf62cd SA |
263 | return 0; |
264 | } | |
265 | ||
5f277629 | 266 | static ssize_t kone_sysfs_read_settings(struct file *fp, struct kobject *kobj, |
14bf62cd SA |
267 | struct bin_attribute *attr, char *buf, |
268 | loff_t off, size_t count) { | |
2cf83833 | 269 | struct device *dev = kobj_to_dev(kobj)->parent->parent; |
14bf62cd SA |
270 | struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); |
271 | ||
272 | if (off >= sizeof(struct kone_settings)) | |
273 | return 0; | |
274 | ||
275 | if (off + count > sizeof(struct kone_settings)) | |
276 | count = sizeof(struct kone_settings) - off; | |
277 | ||
278 | mutex_lock(&kone->kone_lock); | |
cab6b16a | 279 | memcpy(buf, ((char const *)&kone->settings) + off, count); |
14bf62cd SA |
280 | mutex_unlock(&kone->kone_lock); |
281 | ||
282 | return count; | |
283 | } | |
284 | ||
285 | /* | |
286 | * Writing settings automatically activates startup_profile. | |
287 | * This function keeps values in kone_device up to date and assumes that in | |
288 | * case of error the old data is still valid | |
289 | */ | |
5f277629 | 290 | static ssize_t kone_sysfs_write_settings(struct file *fp, struct kobject *kobj, |
14bf62cd SA |
291 | struct bin_attribute *attr, char *buf, |
292 | loff_t off, size_t count) { | |
2cf83833 | 293 | struct device *dev = kobj_to_dev(kobj)->parent->parent; |
14bf62cd SA |
294 | struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); |
295 | struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); | |
3200a6a5 | 296 | int retval = 0, difference, old_profile; |
14bf62cd SA |
297 | |
298 | /* I need to get my data in one piece */ | |
299 | if (off != 0 || count != sizeof(struct kone_settings)) | |
300 | return -EINVAL; | |
301 | ||
302 | mutex_lock(&kone->kone_lock); | |
303 | difference = memcmp(buf, &kone->settings, sizeof(struct kone_settings)); | |
304 | if (difference) { | |
305 | retval = kone_set_settings(usb_dev, | |
306 | (struct kone_settings const *)buf); | |
bd9c35d0 SA |
307 | if (retval) { |
308 | mutex_unlock(&kone->kone_lock); | |
309 | return retval; | |
310 | } | |
14bf62cd | 311 | |
3200a6a5 | 312 | old_profile = kone->settings.startup_profile; |
bd9c35d0 | 313 | memcpy(&kone->settings, buf, sizeof(struct kone_settings)); |
14bf62cd | 314 | |
bd9c35d0 | 315 | kone_profile_activated(kone, kone->settings.startup_profile); |
3200a6a5 SA |
316 | |
317 | if (kone->settings.startup_profile != old_profile) | |
318 | kone_profile_report(kone, kone->settings.startup_profile); | |
bd9c35d0 SA |
319 | } |
320 | mutex_unlock(&kone->kone_lock); | |
14bf62cd SA |
321 | |
322 | return sizeof(struct kone_settings); | |
323 | } | |
71b230af GKH |
324 | static BIN_ATTR(settings, 0660, kone_sysfs_read_settings, |
325 | kone_sysfs_write_settings, sizeof(struct kone_settings)); | |
14bf62cd | 326 | |
14a057f8 SA |
327 | static ssize_t kone_sysfs_read_profilex(struct file *fp, |
328 | struct kobject *kobj, struct bin_attribute *attr, | |
329 | char *buf, loff_t off, size_t count) { | |
2cf83833 | 330 | struct device *dev = kobj_to_dev(kobj)->parent->parent; |
14bf62cd SA |
331 | struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); |
332 | ||
333 | if (off >= sizeof(struct kone_profile)) | |
334 | return 0; | |
335 | ||
336 | if (off + count > sizeof(struct kone_profile)) | |
337 | count = sizeof(struct kone_profile) - off; | |
338 | ||
339 | mutex_lock(&kone->kone_lock); | |
14a057f8 | 340 | memcpy(buf, ((char const *)&kone->profiles[*(uint *)(attr->private)]) + off, count); |
14bf62cd SA |
341 | mutex_unlock(&kone->kone_lock); |
342 | ||
343 | return count; | |
344 | } | |
345 | ||
14bf62cd | 346 | /* Writes data only if different to stored data */ |
14a057f8 SA |
347 | static ssize_t kone_sysfs_write_profilex(struct file *fp, |
348 | struct kobject *kobj, struct bin_attribute *attr, | |
349 | char *buf, loff_t off, size_t count) { | |
2cf83833 | 350 | struct device *dev = kobj_to_dev(kobj)->parent->parent; |
14bf62cd SA |
351 | struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); |
352 | struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); | |
353 | struct kone_profile *profile; | |
354 | int retval = 0, difference; | |
355 | ||
356 | /* I need to get my data in one piece */ | |
357 | if (off != 0 || count != sizeof(struct kone_profile)) | |
358 | return -EINVAL; | |
359 | ||
14a057f8 | 360 | profile = &kone->profiles[*(uint *)(attr->private)]; |
14bf62cd SA |
361 | |
362 | mutex_lock(&kone->kone_lock); | |
363 | difference = memcmp(buf, profile, sizeof(struct kone_profile)); | |
364 | if (difference) { | |
365 | retval = kone_set_profile(usb_dev, | |
14a057f8 SA |
366 | (struct kone_profile const *)buf, |
367 | *(uint *)(attr->private) + 1); | |
14bf62cd SA |
368 | if (!retval) |
369 | memcpy(profile, buf, sizeof(struct kone_profile)); | |
370 | } | |
371 | mutex_unlock(&kone->kone_lock); | |
372 | ||
373 | if (retval) | |
374 | return retval; | |
375 | ||
376 | return sizeof(struct kone_profile); | |
377 | } | |
71b230af GKH |
378 | #define PROFILE_ATTR(number) \ |
379 | static struct bin_attribute bin_attr_profile##number = { \ | |
550dbf47 | 380 | .attr = { .name = "profile" #number, .mode = 0660 }, \ |
71b230af GKH |
381 | .size = sizeof(struct kone_profile), \ |
382 | .read = kone_sysfs_read_profilex, \ | |
383 | .write = kone_sysfs_write_profilex, \ | |
515ad4d6 | 384 | .private = &profile_numbers[number-1], \ |
6354b7e2 | 385 | } |
71b230af GKH |
386 | PROFILE_ATTR(1); |
387 | PROFILE_ATTR(2); | |
388 | PROFILE_ATTR(3); | |
389 | PROFILE_ATTR(4); | |
390 | PROFILE_ATTR(5); | |
14bf62cd | 391 | |
14bf62cd SA |
392 | static ssize_t kone_sysfs_show_actual_profile(struct device *dev, |
393 | struct device_attribute *attr, char *buf) | |
394 | { | |
5012aada SA |
395 | struct kone_device *kone = |
396 | hid_get_drvdata(dev_get_drvdata(dev->parent->parent)); | |
14bf62cd SA |
397 | return snprintf(buf, PAGE_SIZE, "%d\n", kone->actual_profile); |
398 | } | |
46a58c44 | 399 | static DEVICE_ATTR(actual_profile, 0440, kone_sysfs_show_actual_profile, NULL); |
14bf62cd SA |
400 | |
401 | static ssize_t kone_sysfs_show_actual_dpi(struct device *dev, | |
402 | struct device_attribute *attr, char *buf) | |
403 | { | |
5012aada SA |
404 | struct kone_device *kone = |
405 | hid_get_drvdata(dev_get_drvdata(dev->parent->parent)); | |
14bf62cd SA |
406 | return snprintf(buf, PAGE_SIZE, "%d\n", kone->actual_dpi); |
407 | } | |
46a58c44 | 408 | static DEVICE_ATTR(actual_dpi, 0440, kone_sysfs_show_actual_dpi, NULL); |
14bf62cd SA |
409 | |
410 | /* weight is read each time, since we don't get informed when it's changed */ | |
411 | static ssize_t kone_sysfs_show_weight(struct device *dev, | |
412 | struct device_attribute *attr, char *buf) | |
413 | { | |
5012aada SA |
414 | struct kone_device *kone; |
415 | struct usb_device *usb_dev; | |
14bf62cd SA |
416 | int weight = 0; |
417 | int retval; | |
418 | ||
5012aada SA |
419 | dev = dev->parent->parent; |
420 | kone = hid_get_drvdata(dev_get_drvdata(dev)); | |
421 | usb_dev = interface_to_usbdev(to_usb_interface(dev)); | |
422 | ||
14bf62cd SA |
423 | mutex_lock(&kone->kone_lock); |
424 | retval = kone_get_weight(usb_dev, &weight); | |
425 | mutex_unlock(&kone->kone_lock); | |
426 | ||
427 | if (retval) | |
428 | return retval; | |
429 | return snprintf(buf, PAGE_SIZE, "%d\n", weight); | |
430 | } | |
46a58c44 | 431 | static DEVICE_ATTR(weight, 0440, kone_sysfs_show_weight, NULL); |
14bf62cd SA |
432 | |
433 | static ssize_t kone_sysfs_show_firmware_version(struct device *dev, | |
434 | struct device_attribute *attr, char *buf) | |
435 | { | |
5012aada SA |
436 | struct kone_device *kone = |
437 | hid_get_drvdata(dev_get_drvdata(dev->parent->parent)); | |
14bf62cd SA |
438 | return snprintf(buf, PAGE_SIZE, "%d\n", kone->firmware_version); |
439 | } | |
46a58c44 GKH |
440 | static DEVICE_ATTR(firmware_version, 0440, kone_sysfs_show_firmware_version, |
441 | NULL); | |
14bf62cd SA |
442 | |
443 | static ssize_t kone_sysfs_show_tcu(struct device *dev, | |
444 | struct device_attribute *attr, char *buf) | |
445 | { | |
5012aada SA |
446 | struct kone_device *kone = |
447 | hid_get_drvdata(dev_get_drvdata(dev->parent->parent)); | |
14bf62cd SA |
448 | return snprintf(buf, PAGE_SIZE, "%d\n", kone->settings.tcu); |
449 | } | |
450 | ||
451 | static int kone_tcu_command(struct usb_device *usb_dev, int number) | |
452 | { | |
5772f636 | 453 | unsigned char value; |
6354b7e2 | 454 | |
5772f636 | 455 | value = number; |
1edd5b42 | 456 | return kone_send(usb_dev, kone_command_calibrate, &value, 1); |
14bf62cd SA |
457 | } |
458 | ||
459 | /* | |
460 | * Calibrating the tcu is the only action that changes settings data inside the | |
461 | * mouse, so this data needs to be reread | |
462 | */ | |
463 | static ssize_t kone_sysfs_set_tcu(struct device *dev, | |
464 | struct device_attribute *attr, char const *buf, size_t size) | |
465 | { | |
5012aada SA |
466 | struct kone_device *kone; |
467 | struct usb_device *usb_dev; | |
14bf62cd SA |
468 | int retval; |
469 | unsigned long state; | |
470 | ||
5012aada SA |
471 | dev = dev->parent->parent; |
472 | kone = hid_get_drvdata(dev_get_drvdata(dev)); | |
473 | usb_dev = interface_to_usbdev(to_usb_interface(dev)); | |
474 | ||
dfc450b5 | 475 | retval = kstrtoul(buf, 10, &state); |
14bf62cd SA |
476 | if (retval) |
477 | return retval; | |
478 | ||
479 | if (state != 0 && state != 1) | |
480 | return -EINVAL; | |
481 | ||
482 | mutex_lock(&kone->kone_lock); | |
483 | ||
484 | if (state == 1) { /* state activate */ | |
485 | retval = kone_tcu_command(usb_dev, 1); | |
486 | if (retval) | |
487 | goto exit_unlock; | |
488 | retval = kone_tcu_command(usb_dev, 2); | |
489 | if (retval) | |
490 | goto exit_unlock; | |
491 | ssleep(5); /* tcu needs this time for calibration */ | |
492 | retval = kone_tcu_command(usb_dev, 3); | |
493 | if (retval) | |
494 | goto exit_unlock; | |
495 | retval = kone_tcu_command(usb_dev, 0); | |
496 | if (retval) | |
497 | goto exit_unlock; | |
498 | retval = kone_tcu_command(usb_dev, 4); | |
499 | if (retval) | |
500 | goto exit_unlock; | |
501 | /* | |
502 | * Kone needs this time to settle things. | |
503 | * Reading settings too early will result in invalid data. | |
504 | * Roccat's driver waits 1 sec, maybe this time could be | |
505 | * shortened. | |
506 | */ | |
507 | ssleep(1); | |
508 | } | |
509 | ||
510 | /* calibration changes values in settings, so reread */ | |
511 | retval = kone_get_settings(usb_dev, &kone->settings); | |
512 | if (retval) | |
513 | goto exit_no_settings; | |
514 | ||
515 | /* only write settings back if activation state is different */ | |
516 | if (kone->settings.tcu != state) { | |
517 | kone->settings.tcu = state; | |
518 | kone_set_settings_checksum(&kone->settings); | |
519 | ||
520 | retval = kone_set_settings(usb_dev, &kone->settings); | |
521 | if (retval) { | |
4ec141ad | 522 | dev_err(&usb_dev->dev, "couldn't set tcu state\n"); |
14bf62cd SA |
523 | /* |
524 | * try to reread valid settings into buffer overwriting | |
525 | * first error code | |
526 | */ | |
527 | retval = kone_get_settings(usb_dev, &kone->settings); | |
528 | if (retval) | |
529 | goto exit_no_settings; | |
530 | goto exit_unlock; | |
531 | } | |
bd9c35d0 SA |
532 | /* calibration resets profile */ |
533 | kone_profile_activated(kone, kone->settings.startup_profile); | |
14bf62cd SA |
534 | } |
535 | ||
536 | retval = size; | |
537 | exit_no_settings: | |
4ec141ad | 538 | dev_err(&usb_dev->dev, "couldn't read settings\n"); |
14bf62cd SA |
539 | exit_unlock: |
540 | mutex_unlock(&kone->kone_lock); | |
541 | return retval; | |
542 | } | |
46a58c44 | 543 | static DEVICE_ATTR(tcu, 0660, kone_sysfs_show_tcu, kone_sysfs_set_tcu); |
14bf62cd SA |
544 | |
545 | static ssize_t kone_sysfs_show_startup_profile(struct device *dev, | |
546 | struct device_attribute *attr, char *buf) | |
547 | { | |
5012aada SA |
548 | struct kone_device *kone = |
549 | hid_get_drvdata(dev_get_drvdata(dev->parent->parent)); | |
14bf62cd SA |
550 | return snprintf(buf, PAGE_SIZE, "%d\n", kone->settings.startup_profile); |
551 | } | |
552 | ||
553 | static ssize_t kone_sysfs_set_startup_profile(struct device *dev, | |
554 | struct device_attribute *attr, char const *buf, size_t size) | |
555 | { | |
5012aada SA |
556 | struct kone_device *kone; |
557 | struct usb_device *usb_dev; | |
14bf62cd SA |
558 | int retval; |
559 | unsigned long new_startup_profile; | |
560 | ||
5012aada SA |
561 | dev = dev->parent->parent; |
562 | kone = hid_get_drvdata(dev_get_drvdata(dev)); | |
563 | usb_dev = interface_to_usbdev(to_usb_interface(dev)); | |
564 | ||
dfc450b5 | 565 | retval = kstrtoul(buf, 10, &new_startup_profile); |
14bf62cd SA |
566 | if (retval) |
567 | return retval; | |
568 | ||
569 | if (new_startup_profile < 1 || new_startup_profile > 5) | |
570 | return -EINVAL; | |
571 | ||
572 | mutex_lock(&kone->kone_lock); | |
573 | ||
574 | kone->settings.startup_profile = new_startup_profile; | |
575 | kone_set_settings_checksum(&kone->settings); | |
576 | ||
577 | retval = kone_set_settings(usb_dev, &kone->settings); | |
bd9c35d0 SA |
578 | if (retval) { |
579 | mutex_unlock(&kone->kone_lock); | |
14bf62cd | 580 | return retval; |
bd9c35d0 | 581 | } |
14bf62cd SA |
582 | |
583 | /* changing the startup profile immediately activates this profile */ | |
bd9c35d0 | 584 | kone_profile_activated(kone, new_startup_profile); |
3200a6a5 | 585 | kone_profile_report(kone, new_startup_profile); |
14bf62cd | 586 | |
bd9c35d0 | 587 | mutex_unlock(&kone->kone_lock); |
14bf62cd SA |
588 | return size; |
589 | } | |
46a58c44 GKH |
590 | static DEVICE_ATTR(startup_profile, 0660, kone_sysfs_show_startup_profile, |
591 | kone_sysfs_set_startup_profile); | |
14bf62cd | 592 | |
46a58c44 | 593 | static struct attribute *kone_attrs[] = { |
5012aada SA |
594 | /* |
595 | * Read actual dpi settings. | |
596 | * Returns raw value for further processing. Refer to enum | |
597 | * kone_polling_rates to get real value. | |
598 | */ | |
46a58c44 GKH |
599 | &dev_attr_actual_dpi.attr, |
600 | &dev_attr_actual_profile.attr, | |
14bf62cd | 601 | |
5012aada SA |
602 | /* |
603 | * The mouse can be equipped with one of four supplied weights from 5 | |
604 | * to 20 grams which are recognized and its value can be read out. | |
605 | * This returns the raw value reported by the mouse for easy evaluation | |
606 | * by software. Refer to enum kone_weights to get corresponding real | |
607 | * weight. | |
608 | */ | |
46a58c44 | 609 | &dev_attr_weight.attr, |
14bf62cd | 610 | |
5012aada SA |
611 | /* |
612 | * Prints firmware version stored in mouse as integer. | |
613 | * The raw value reported by the mouse is returned for easy evaluation, | |
614 | * to get the real version number the decimal point has to be shifted 2 | |
615 | * positions to the left. E.g. a value of 138 means 1.38. | |
616 | */ | |
46a58c44 | 617 | &dev_attr_firmware_version.attr, |
14bf62cd | 618 | |
5012aada SA |
619 | /* |
620 | * Prints state of Tracking Control Unit as number where 0 = off and | |
621 | * 1 = on. Writing 0 deactivates tcu and writing 1 calibrates and | |
622 | * activates the tcu | |
623 | */ | |
46a58c44 | 624 | &dev_attr_tcu.attr, |
14bf62cd | 625 | |
5012aada | 626 | /* Prints and takes the number of the profile the mouse starts with */ |
46a58c44 GKH |
627 | &dev_attr_startup_profile.attr, |
628 | NULL, | |
14bf62cd | 629 | }; |
71b230af GKH |
630 | |
631 | static struct bin_attribute *kone_bin_attributes[] = { | |
632 | &bin_attr_settings, | |
633 | &bin_attr_profile1, | |
634 | &bin_attr_profile2, | |
635 | &bin_attr_profile3, | |
636 | &bin_attr_profile4, | |
637 | &bin_attr_profile5, | |
638 | NULL, | |
639 | }; | |
640 | ||
641 | static const struct attribute_group kone_group = { | |
642 | .attrs = kone_attrs, | |
643 | .bin_attrs = kone_bin_attributes, | |
644 | }; | |
645 | ||
646 | static const struct attribute_group *kone_groups[] = { | |
647 | &kone_group, | |
648 | NULL, | |
14bf62cd SA |
649 | }; |
650 | ||
14bf62cd SA |
651 | static int kone_init_kone_device_struct(struct usb_device *usb_dev, |
652 | struct kone_device *kone) | |
653 | { | |
654 | uint i; | |
655 | int retval; | |
656 | ||
657 | mutex_init(&kone->kone_lock); | |
658 | ||
659 | for (i = 0; i < 5; ++i) { | |
660 | retval = kone_get_profile(usb_dev, &kone->profiles[i], i + 1); | |
661 | if (retval) | |
662 | return retval; | |
663 | } | |
664 | ||
665 | retval = kone_get_settings(usb_dev, &kone->settings); | |
666 | if (retval) | |
667 | return retval; | |
668 | ||
669 | retval = kone_get_firmware_version(usb_dev, &kone->firmware_version); | |
670 | if (retval) | |
671 | return retval; | |
672 | ||
bd9c35d0 | 673 | kone_profile_activated(kone, kone->settings.startup_profile); |
14bf62cd SA |
674 | |
675 | return 0; | |
676 | } | |
677 | ||
678 | /* | |
679 | * Since IGNORE_MOUSE quirk moved to hid-apple, there is no way to bind only to | |
680 | * mousepart if usb_hid is compiled into the kernel and kone is compiled as | |
681 | * module. | |
682 | * Secial behaviour is bound only to mousepart since only mouseevents contain | |
683 | * additional notifications. | |
684 | */ | |
685 | static int kone_init_specials(struct hid_device *hdev) | |
686 | { | |
687 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); | |
688 | struct usb_device *usb_dev = interface_to_usbdev(intf); | |
689 | struct kone_device *kone; | |
690 | int retval; | |
691 | ||
692 | if (intf->cur_altsetting->desc.bInterfaceProtocol | |
693 | == USB_INTERFACE_PROTOCOL_MOUSE) { | |
694 | ||
695 | kone = kzalloc(sizeof(*kone), GFP_KERNEL); | |
6354b7e2 | 696 | if (!kone) |
14bf62cd | 697 | return -ENOMEM; |
14bf62cd SA |
698 | hid_set_drvdata(hdev, kone); |
699 | ||
700 | retval = kone_init_kone_device_struct(usb_dev, kone); | |
701 | if (retval) { | |
4291ee30 | 702 | hid_err(hdev, "couldn't init struct kone_device\n"); |
14bf62cd SA |
703 | goto exit_free; |
704 | } | |
206f5f2f | 705 | |
8211e460 SA |
706 | retval = roccat_connect(kone_class, hdev, |
707 | sizeof(struct kone_roccat_report)); | |
206f5f2f | 708 | if (retval < 0) { |
4291ee30 | 709 | hid_err(hdev, "couldn't init char dev\n"); |
206f5f2f SA |
710 | /* be tolerant about not getting chrdev */ |
711 | } else { | |
712 | kone->roccat_claimed = 1; | |
713 | kone->chrdev_minor = retval; | |
714 | } | |
14bf62cd SA |
715 | } else { |
716 | hid_set_drvdata(hdev, NULL); | |
717 | } | |
718 | ||
719 | return 0; | |
720 | exit_free: | |
721 | kfree(kone); | |
722 | return retval; | |
723 | } | |
724 | ||
14bf62cd SA |
725 | static void kone_remove_specials(struct hid_device *hdev) |
726 | { | |
727 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); | |
206f5f2f | 728 | struct kone_device *kone; |
14bf62cd SA |
729 | |
730 | if (intf->cur_altsetting->desc.bInterfaceProtocol | |
731 | == USB_INTERFACE_PROTOCOL_MOUSE) { | |
206f5f2f SA |
732 | kone = hid_get_drvdata(hdev); |
733 | if (kone->roccat_claimed) | |
734 | roccat_disconnect(kone->chrdev_minor); | |
14bf62cd SA |
735 | kfree(hid_get_drvdata(hdev)); |
736 | } | |
737 | } | |
738 | ||
739 | static int kone_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
740 | { | |
741 | int retval; | |
742 | ||
743 | retval = hid_parse(hdev); | |
744 | if (retval) { | |
4291ee30 | 745 | hid_err(hdev, "parse failed\n"); |
14bf62cd SA |
746 | goto exit; |
747 | } | |
748 | ||
749 | retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT); | |
750 | if (retval) { | |
4291ee30 | 751 | hid_err(hdev, "hw start failed\n"); |
14bf62cd SA |
752 | goto exit; |
753 | } | |
754 | ||
755 | retval = kone_init_specials(hdev); | |
756 | if (retval) { | |
4291ee30 | 757 | hid_err(hdev, "couldn't install mouse\n"); |
14bf62cd SA |
758 | goto exit_stop; |
759 | } | |
760 | ||
761 | return 0; | |
762 | ||
763 | exit_stop: | |
764 | hid_hw_stop(hdev); | |
765 | exit: | |
766 | return retval; | |
767 | } | |
768 | ||
769 | static void kone_remove(struct hid_device *hdev) | |
770 | { | |
771 | kone_remove_specials(hdev); | |
772 | hid_hw_stop(hdev); | |
773 | } | |
774 | ||
48e70804 SA |
775 | /* handle special events and keep actual profile and dpi values up to date */ |
776 | static void kone_keep_values_up_to_date(struct kone_device *kone, | |
777 | struct kone_mouse_event const *event) | |
778 | { | |
779 | switch (event->event) { | |
780 | case kone_mouse_event_switch_profile: | |
1c5784da SA |
781 | kone->actual_dpi = kone->profiles[event->value - 1]. |
782 | startup_dpi; | |
9b6872a1 | 783 | /* fall through */ |
48e70804 SA |
784 | case kone_mouse_event_osd_profile: |
785 | kone->actual_profile = event->value; | |
48e70804 SA |
786 | break; |
787 | case kone_mouse_event_switch_dpi: | |
788 | case kone_mouse_event_osd_dpi: | |
789 | kone->actual_dpi = event->value; | |
790 | break; | |
791 | } | |
792 | } | |
793 | ||
206f5f2f SA |
794 | static void kone_report_to_chrdev(struct kone_device const *kone, |
795 | struct kone_mouse_event const *event) | |
796 | { | |
797 | struct kone_roccat_report roccat_report; | |
798 | ||
799 | switch (event->event) { | |
800 | case kone_mouse_event_switch_profile: | |
801 | case kone_mouse_event_switch_dpi: | |
802 | case kone_mouse_event_osd_profile: | |
803 | case kone_mouse_event_osd_dpi: | |
804 | roccat_report.event = event->event; | |
805 | roccat_report.value = event->value; | |
806 | roccat_report.key = 0; | |
807 | roccat_report_event(kone->chrdev_minor, | |
8211e460 | 808 | (uint8_t *)&roccat_report); |
206f5f2f SA |
809 | break; |
810 | case kone_mouse_event_call_overlong_macro: | |
b42065f3 | 811 | case kone_mouse_event_multimedia: |
206f5f2f | 812 | if (event->value == kone_keystroke_action_press) { |
b42065f3 | 813 | roccat_report.event = event->event; |
206f5f2f SA |
814 | roccat_report.value = kone->actual_profile; |
815 | roccat_report.key = event->macro_key; | |
816 | roccat_report_event(kone->chrdev_minor, | |
8211e460 | 817 | (uint8_t *)&roccat_report); |
206f5f2f SA |
818 | } |
819 | break; | |
820 | } | |
821 | ||
822 | } | |
823 | ||
14bf62cd SA |
824 | /* |
825 | * Is called for keyboard- and mousepart. | |
826 | * Only mousepart gets informations about special events in its extended event | |
827 | * structure. | |
828 | */ | |
829 | static int kone_raw_event(struct hid_device *hdev, struct hid_report *report, | |
830 | u8 *data, int size) | |
831 | { | |
832 | struct kone_device *kone = hid_get_drvdata(hdev); | |
833 | struct kone_mouse_event *event = (struct kone_mouse_event *)data; | |
834 | ||
835 | /* keyboard events are always processed by default handler */ | |
836 | if (size != sizeof(struct kone_mouse_event)) | |
837 | return 0; | |
838 | ||
901e64db SA |
839 | if (kone == NULL) |
840 | return 0; | |
841 | ||
14bf62cd | 842 | /* |
73b3577d SA |
843 | * Firmware 1.38 introduced new behaviour for tilt and special buttons. |
844 | * Pressed button is reported in each movement event. | |
14bf62cd SA |
845 | * Workaround sends only one event per press. |
846 | */ | |
73b3577d SA |
847 | if (memcmp(&kone->last_mouse_event.tilt, &event->tilt, 5)) |
848 | memcpy(&kone->last_mouse_event, event, | |
849 | sizeof(struct kone_mouse_event)); | |
14bf62cd | 850 | else |
73b3577d | 851 | memset(&event->tilt, 0, 5); |
14bf62cd | 852 | |
48e70804 | 853 | kone_keep_values_up_to_date(kone, event); |
14bf62cd | 854 | |
206f5f2f SA |
855 | if (kone->roccat_claimed) |
856 | kone_report_to_chrdev(kone, event); | |
857 | ||
48e70804 | 858 | return 0; /* always do further processing */ |
14bf62cd SA |
859 | } |
860 | ||
861 | static const struct hid_device_id kone_devices[] = { | |
862 | { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) }, | |
863 | { } | |
864 | }; | |
865 | ||
866 | MODULE_DEVICE_TABLE(hid, kone_devices); | |
867 | ||
868 | static struct hid_driver kone_driver = { | |
869 | .name = "kone", | |
870 | .id_table = kone_devices, | |
871 | .probe = kone_probe, | |
872 | .remove = kone_remove, | |
873 | .raw_event = kone_raw_event | |
874 | }; | |
875 | ||
00237bc5 | 876 | static int __init kone_init(void) |
14bf62cd | 877 | { |
5012aada SA |
878 | int retval; |
879 | ||
880 | /* class name has to be same as driver name */ | |
881 | kone_class = class_create(THIS_MODULE, "kone"); | |
882 | if (IS_ERR(kone_class)) | |
883 | return PTR_ERR(kone_class); | |
46a58c44 | 884 | kone_class->dev_groups = kone_groups; |
5012aada SA |
885 | |
886 | retval = hid_register_driver(&kone_driver); | |
887 | if (retval) | |
888 | class_destroy(kone_class); | |
889 | return retval; | |
14bf62cd SA |
890 | } |
891 | ||
00237bc5 | 892 | static void __exit kone_exit(void) |
14bf62cd SA |
893 | { |
894 | hid_unregister_driver(&kone_driver); | |
74b643da | 895 | class_destroy(kone_class); |
14bf62cd SA |
896 | } |
897 | ||
898 | module_init(kone_init); | |
899 | module_exit(kone_exit); | |
900 | ||
1f749d8d SA |
901 | MODULE_AUTHOR("Stefan Achatz"); |
902 | MODULE_DESCRIPTION("USB Roccat Kone driver"); | |
903 | MODULE_LICENSE("GPL v2"); |