Commit | Line | Data |
---|---|---|
2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
d41c2a70 SA |
2 | /* |
3 | * Roccat Isku driver for Linux | |
4 | * | |
5 | * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net> | |
6 | */ | |
7 | ||
8 | /* | |
d41c2a70 SA |
9 | */ |
10 | ||
11 | /* | |
12 | * Roccat Isku is a gamer keyboard with macro keys that can be configured in | |
13 | * 5 profiles. | |
14 | */ | |
15 | ||
16 | #include <linux/device.h> | |
17 | #include <linux/input.h> | |
18 | #include <linux/hid.h> | |
19 | #include <linux/module.h> | |
20 | #include <linux/slab.h> | |
21 | #include <linux/hid-roccat.h> | |
22 | #include "hid-ids.h" | |
23 | #include "hid-roccat-common.h" | |
24 | #include "hid-roccat-isku.h" | |
25 | ||
26 | static struct class *isku_class; | |
27 | ||
28 | static void isku_profile_activated(struct isku_device *isku, uint new_profile) | |
29 | { | |
30 | isku->actual_profile = new_profile; | |
31 | } | |
32 | ||
33 | static int isku_receive(struct usb_device *usb_dev, uint command, | |
34 | void *buf, uint size) | |
35 | { | |
7392d73b | 36 | return roccat_common2_receive(usb_dev, command, buf, size); |
d41c2a70 SA |
37 | } |
38 | ||
d41c2a70 SA |
39 | static int isku_get_actual_profile(struct usb_device *usb_dev) |
40 | { | |
41 | struct isku_actual_profile buf; | |
42 | int retval; | |
43 | ||
44 | retval = isku_receive(usb_dev, ISKU_COMMAND_ACTUAL_PROFILE, | |
45 | &buf, sizeof(struct isku_actual_profile)); | |
46 | return retval ? retval : buf.actual_profile; | |
47 | } | |
48 | ||
49 | static int isku_set_actual_profile(struct usb_device *usb_dev, int new_profile) | |
50 | { | |
51 | struct isku_actual_profile buf; | |
52 | ||
53 | buf.command = ISKU_COMMAND_ACTUAL_PROFILE; | |
54 | buf.size = sizeof(struct isku_actual_profile); | |
55 | buf.actual_profile = new_profile; | |
7392d73b | 56 | return roccat_common2_send_with_status(usb_dev, |
4728f2dc | 57 | ISKU_COMMAND_ACTUAL_PROFILE, &buf, |
d41c2a70 SA |
58 | sizeof(struct isku_actual_profile)); |
59 | } | |
60 | ||
61 | static ssize_t isku_sysfs_show_actual_profile(struct device *dev, | |
62 | struct device_attribute *attr, char *buf) | |
63 | { | |
64 | struct isku_device *isku = | |
65 | hid_get_drvdata(dev_get_drvdata(dev->parent->parent)); | |
66 | return snprintf(buf, PAGE_SIZE, "%d\n", isku->actual_profile); | |
67 | } | |
68 | ||
69 | static ssize_t isku_sysfs_set_actual_profile(struct device *dev, | |
70 | struct device_attribute *attr, char const *buf, size_t size) | |
71 | { | |
72 | struct isku_device *isku; | |
73 | struct usb_device *usb_dev; | |
74 | unsigned long profile; | |
75 | int retval; | |
76 | struct isku_roccat_report roccat_report; | |
77 | ||
78 | dev = dev->parent->parent; | |
79 | isku = hid_get_drvdata(dev_get_drvdata(dev)); | |
80 | usb_dev = interface_to_usbdev(to_usb_interface(dev)); | |
81 | ||
dfc450b5 | 82 | retval = kstrtoul(buf, 10, &profile); |
d41c2a70 SA |
83 | if (retval) |
84 | return retval; | |
85 | ||
86 | if (profile > 4) | |
87 | return -EINVAL; | |
88 | ||
89 | mutex_lock(&isku->isku_lock); | |
90 | ||
91 | retval = isku_set_actual_profile(usb_dev, profile); | |
92 | if (retval) { | |
93 | mutex_unlock(&isku->isku_lock); | |
94 | return retval; | |
95 | } | |
96 | ||
97 | isku_profile_activated(isku, profile); | |
98 | ||
99 | roccat_report.event = ISKU_REPORT_BUTTON_EVENT_PROFILE; | |
100 | roccat_report.data1 = profile + 1; | |
101 | roccat_report.data2 = 0; | |
102 | roccat_report.profile = profile + 1; | |
103 | roccat_report_event(isku->chrdev_minor, (uint8_t const *)&roccat_report); | |
104 | ||
105 | mutex_unlock(&isku->isku_lock); | |
106 | ||
107 | return size; | |
108 | } | |
46a58c44 GKH |
109 | static DEVICE_ATTR(actual_profile, 0660, isku_sysfs_show_actual_profile, |
110 | isku_sysfs_set_actual_profile); | |
d41c2a70 | 111 | |
46a58c44 GKH |
112 | static struct attribute *isku_attrs[] = { |
113 | &dev_attr_actual_profile.attr, | |
114 | NULL, | |
d41c2a70 SA |
115 | }; |
116 | ||
117 | static ssize_t isku_sysfs_read(struct file *fp, struct kobject *kobj, | |
118 | char *buf, loff_t off, size_t count, | |
119 | size_t real_size, uint command) | |
120 | { | |
2cf83833 | 121 | struct device *dev = kobj_to_dev(kobj)->parent->parent; |
d41c2a70 SA |
122 | struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev)); |
123 | struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); | |
124 | int retval; | |
125 | ||
126 | if (off >= real_size) | |
127 | return 0; | |
128 | ||
ce716965 | 129 | if (off != 0 || count > real_size) |
d41c2a70 SA |
130 | return -EINVAL; |
131 | ||
132 | mutex_lock(&isku->isku_lock); | |
ce716965 | 133 | retval = isku_receive(usb_dev, command, buf, count); |
d41c2a70 SA |
134 | mutex_unlock(&isku->isku_lock); |
135 | ||
ce716965 | 136 | return retval ? retval : count; |
d41c2a70 SA |
137 | } |
138 | ||
139 | static ssize_t isku_sysfs_write(struct file *fp, struct kobject *kobj, | |
140 | void const *buf, loff_t off, size_t count, | |
141 | size_t real_size, uint command) | |
142 | { | |
2cf83833 | 143 | struct device *dev = kobj_to_dev(kobj)->parent->parent; |
d41c2a70 SA |
144 | struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev)); |
145 | struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); | |
146 | int retval; | |
147 | ||
ce716965 | 148 | if (off != 0 || count > real_size) |
d41c2a70 SA |
149 | return -EINVAL; |
150 | ||
151 | mutex_lock(&isku->isku_lock); | |
7392d73b | 152 | retval = roccat_common2_send_with_status(usb_dev, command, |
ce716965 | 153 | (void *)buf, count); |
d41c2a70 SA |
154 | mutex_unlock(&isku->isku_lock); |
155 | ||
ce716965 | 156 | return retval ? retval : count; |
d41c2a70 SA |
157 | } |
158 | ||
159 | #define ISKU_SYSFS_W(thingy, THINGY) \ | |
160 | static ssize_t isku_sysfs_write_ ## thingy(struct file *fp, struct kobject *kobj, \ | |
161 | struct bin_attribute *attr, char *buf, \ | |
162 | loff_t off, size_t count) \ | |
163 | { \ | |
164 | return isku_sysfs_write(fp, kobj, buf, off, count, \ | |
6e5920dd | 165 | ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \ |
d41c2a70 SA |
166 | } |
167 | ||
168 | #define ISKU_SYSFS_R(thingy, THINGY) \ | |
169 | static ssize_t isku_sysfs_read_ ## thingy(struct file *fp, struct kobject *kobj, \ | |
170 | struct bin_attribute *attr, char *buf, \ | |
171 | loff_t off, size_t count) \ | |
172 | { \ | |
173 | return isku_sysfs_read(fp, kobj, buf, off, count, \ | |
6e5920dd | 174 | ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \ |
d41c2a70 SA |
175 | } |
176 | ||
177 | #define ISKU_SYSFS_RW(thingy, THINGY) \ | |
178 | ISKU_SYSFS_R(thingy, THINGY) \ | |
179 | ISKU_SYSFS_W(thingy, THINGY) | |
180 | ||
6e5920dd | 181 | #define ISKU_BIN_ATTR_RW(thingy, THINGY) \ |
8daf8c3a GKH |
182 | ISKU_SYSFS_RW(thingy, THINGY); \ |
183 | static struct bin_attribute bin_attr_##thingy = { \ | |
d41c2a70 | 184 | .attr = { .name = #thingy, .mode = 0660 }, \ |
6e5920dd | 185 | .size = ISKU_SIZE_ ## THINGY, \ |
d41c2a70 SA |
186 | .read = isku_sysfs_read_ ## thingy, \ |
187 | .write = isku_sysfs_write_ ## thingy \ | |
188 | } | |
189 | ||
6e5920dd | 190 | #define ISKU_BIN_ATTR_R(thingy, THINGY) \ |
8daf8c3a GKH |
191 | ISKU_SYSFS_R(thingy, THINGY); \ |
192 | static struct bin_attribute bin_attr_##thingy = { \ | |
d41c2a70 | 193 | .attr = { .name = #thingy, .mode = 0440 }, \ |
6e5920dd | 194 | .size = ISKU_SIZE_ ## THINGY, \ |
d41c2a70 SA |
195 | .read = isku_sysfs_read_ ## thingy, \ |
196 | } | |
197 | ||
6e5920dd | 198 | #define ISKU_BIN_ATTR_W(thingy, THINGY) \ |
8daf8c3a GKH |
199 | ISKU_SYSFS_W(thingy, THINGY); \ |
200 | static struct bin_attribute bin_attr_##thingy = { \ | |
d41c2a70 | 201 | .attr = { .name = #thingy, .mode = 0220 }, \ |
6e5920dd | 202 | .size = ISKU_SIZE_ ## THINGY, \ |
d41c2a70 SA |
203 | .write = isku_sysfs_write_ ## thingy \ |
204 | } | |
205 | ||
8daf8c3a GKH |
206 | ISKU_BIN_ATTR_RW(macro, MACRO); |
207 | ISKU_BIN_ATTR_RW(keys_function, KEYS_FUNCTION); | |
208 | ISKU_BIN_ATTR_RW(keys_easyzone, KEYS_EASYZONE); | |
209 | ISKU_BIN_ATTR_RW(keys_media, KEYS_MEDIA); | |
210 | ISKU_BIN_ATTR_RW(keys_thumbster, KEYS_THUMBSTER); | |
211 | ISKU_BIN_ATTR_RW(keys_macro, KEYS_MACRO); | |
212 | ISKU_BIN_ATTR_RW(keys_capslock, KEYS_CAPSLOCK); | |
213 | ISKU_BIN_ATTR_RW(light, LIGHT); | |
214 | ISKU_BIN_ATTR_RW(key_mask, KEY_MASK); | |
215 | ISKU_BIN_ATTR_RW(last_set, LAST_SET); | |
216 | ISKU_BIN_ATTR_W(talk, TALK); | |
217 | ISKU_BIN_ATTR_W(talkfx, TALKFX); | |
218 | ISKU_BIN_ATTR_W(control, CONTROL); | |
219 | ISKU_BIN_ATTR_W(reset, RESET); | |
220 | ISKU_BIN_ATTR_R(info, INFO); | |
221 | ||
222 | static struct bin_attribute *isku_bin_attributes[] = { | |
223 | &bin_attr_macro, | |
224 | &bin_attr_keys_function, | |
225 | &bin_attr_keys_easyzone, | |
226 | &bin_attr_keys_media, | |
227 | &bin_attr_keys_thumbster, | |
228 | &bin_attr_keys_macro, | |
229 | &bin_attr_keys_capslock, | |
230 | &bin_attr_light, | |
231 | &bin_attr_key_mask, | |
232 | &bin_attr_last_set, | |
233 | &bin_attr_talk, | |
234 | &bin_attr_talkfx, | |
235 | &bin_attr_control, | |
236 | &bin_attr_reset, | |
237 | &bin_attr_info, | |
238 | NULL, | |
239 | }; | |
240 | ||
241 | static const struct attribute_group isku_group = { | |
242 | .attrs = isku_attrs, | |
243 | .bin_attrs = isku_bin_attributes, | |
244 | }; | |
245 | ||
246 | static const struct attribute_group *isku_groups[] = { | |
247 | &isku_group, | |
248 | NULL, | |
d41c2a70 SA |
249 | }; |
250 | ||
251 | static int isku_init_isku_device_struct(struct usb_device *usb_dev, | |
252 | struct isku_device *isku) | |
253 | { | |
254 | int retval; | |
255 | ||
256 | mutex_init(&isku->isku_lock); | |
257 | ||
258 | retval = isku_get_actual_profile(usb_dev); | |
259 | if (retval < 0) | |
260 | return retval; | |
261 | isku_profile_activated(isku, retval); | |
262 | ||
263 | return 0; | |
264 | } | |
265 | ||
266 | static int isku_init_specials(struct hid_device *hdev) | |
267 | { | |
268 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); | |
269 | struct usb_device *usb_dev = interface_to_usbdev(intf); | |
270 | struct isku_device *isku; | |
271 | int retval; | |
272 | ||
273 | if (intf->cur_altsetting->desc.bInterfaceProtocol | |
274 | != ISKU_USB_INTERFACE_PROTOCOL) { | |
275 | hid_set_drvdata(hdev, NULL); | |
276 | return 0; | |
277 | } | |
278 | ||
279 | isku = kzalloc(sizeof(*isku), GFP_KERNEL); | |
280 | if (!isku) { | |
281 | hid_err(hdev, "can't alloc device descriptor\n"); | |
282 | return -ENOMEM; | |
283 | } | |
284 | hid_set_drvdata(hdev, isku); | |
285 | ||
286 | retval = isku_init_isku_device_struct(usb_dev, isku); | |
287 | if (retval) { | |
288 | hid_err(hdev, "couldn't init struct isku_device\n"); | |
289 | goto exit_free; | |
290 | } | |
291 | ||
292 | retval = roccat_connect(isku_class, hdev, | |
293 | sizeof(struct isku_roccat_report)); | |
294 | if (retval < 0) { | |
295 | hid_err(hdev, "couldn't init char dev\n"); | |
296 | } else { | |
297 | isku->chrdev_minor = retval; | |
298 | isku->roccat_claimed = 1; | |
299 | } | |
300 | ||
301 | return 0; | |
302 | exit_free: | |
303 | kfree(isku); | |
304 | return retval; | |
305 | } | |
306 | ||
307 | static void isku_remove_specials(struct hid_device *hdev) | |
308 | { | |
309 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); | |
310 | struct isku_device *isku; | |
311 | ||
312 | if (intf->cur_altsetting->desc.bInterfaceProtocol | |
313 | != ISKU_USB_INTERFACE_PROTOCOL) | |
314 | return; | |
315 | ||
316 | isku = hid_get_drvdata(hdev); | |
317 | if (isku->roccat_claimed) | |
318 | roccat_disconnect(isku->chrdev_minor); | |
319 | kfree(isku); | |
320 | } | |
321 | ||
322 | static int isku_probe(struct hid_device *hdev, | |
323 | const struct hid_device_id *id) | |
324 | { | |
325 | int retval; | |
326 | ||
93020953 GKH |
327 | if (!hid_is_usb(hdev)) |
328 | return -EINVAL; | |
329 | ||
d41c2a70 SA |
330 | retval = hid_parse(hdev); |
331 | if (retval) { | |
332 | hid_err(hdev, "parse failed\n"); | |
333 | goto exit; | |
334 | } | |
335 | ||
336 | retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT); | |
337 | if (retval) { | |
338 | hid_err(hdev, "hw start failed\n"); | |
339 | goto exit; | |
340 | } | |
341 | ||
342 | retval = isku_init_specials(hdev); | |
343 | if (retval) { | |
344 | hid_err(hdev, "couldn't install keyboard\n"); | |
345 | goto exit_stop; | |
346 | } | |
347 | ||
348 | return 0; | |
349 | ||
350 | exit_stop: | |
351 | hid_hw_stop(hdev); | |
352 | exit: | |
353 | return retval; | |
354 | } | |
355 | ||
356 | static void isku_remove(struct hid_device *hdev) | |
357 | { | |
358 | isku_remove_specials(hdev); | |
359 | hid_hw_stop(hdev); | |
360 | } | |
361 | ||
362 | static void isku_keep_values_up_to_date(struct isku_device *isku, | |
363 | u8 const *data) | |
364 | { | |
365 | struct isku_report_button const *button_report; | |
366 | ||
367 | switch (data[0]) { | |
368 | case ISKU_REPORT_NUMBER_BUTTON: | |
369 | button_report = (struct isku_report_button const *)data; | |
370 | switch (button_report->event) { | |
371 | case ISKU_REPORT_BUTTON_EVENT_PROFILE: | |
372 | isku_profile_activated(isku, button_report->data1 - 1); | |
373 | break; | |
374 | } | |
375 | break; | |
376 | } | |
377 | } | |
378 | ||
379 | static void isku_report_to_chrdev(struct isku_device const *isku, | |
380 | u8 const *data) | |
381 | { | |
382 | struct isku_roccat_report roccat_report; | |
383 | struct isku_report_button const *button_report; | |
384 | ||
385 | if (data[0] != ISKU_REPORT_NUMBER_BUTTON) | |
386 | return; | |
387 | ||
388 | button_report = (struct isku_report_button const *)data; | |
389 | ||
390 | roccat_report.event = button_report->event; | |
391 | roccat_report.data1 = button_report->data1; | |
392 | roccat_report.data2 = button_report->data2; | |
393 | roccat_report.profile = isku->actual_profile + 1; | |
394 | roccat_report_event(isku->chrdev_minor, | |
395 | (uint8_t const *)&roccat_report); | |
396 | } | |
397 | ||
398 | static int isku_raw_event(struct hid_device *hdev, | |
399 | struct hid_report *report, u8 *data, int size) | |
400 | { | |
401 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); | |
402 | struct isku_device *isku = hid_get_drvdata(hdev); | |
403 | ||
404 | if (intf->cur_altsetting->desc.bInterfaceProtocol | |
405 | != ISKU_USB_INTERFACE_PROTOCOL) | |
406 | return 0; | |
407 | ||
408 | if (isku == NULL) | |
409 | return 0; | |
410 | ||
411 | isku_keep_values_up_to_date(isku, data); | |
412 | ||
413 | if (isku->roccat_claimed) | |
414 | isku_report_to_chrdev(isku, data); | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
419 | static const struct hid_device_id isku_devices[] = { | |
420 | { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) }, | |
ce716965 | 421 | { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) }, |
d41c2a70 SA |
422 | { } |
423 | }; | |
424 | ||
425 | MODULE_DEVICE_TABLE(hid, isku_devices); | |
426 | ||
427 | static struct hid_driver isku_driver = { | |
428 | .name = "isku", | |
429 | .id_table = isku_devices, | |
430 | .probe = isku_probe, | |
431 | .remove = isku_remove, | |
432 | .raw_event = isku_raw_event | |
433 | }; | |
434 | ||
435 | static int __init isku_init(void) | |
436 | { | |
437 | int retval; | |
1aaba11d | 438 | isku_class = class_create("isku"); |
d41c2a70 SA |
439 | if (IS_ERR(isku_class)) |
440 | return PTR_ERR(isku_class); | |
46a58c44 | 441 | isku_class->dev_groups = isku_groups; |
d41c2a70 SA |
442 | |
443 | retval = hid_register_driver(&isku_driver); | |
444 | if (retval) | |
445 | class_destroy(isku_class); | |
446 | return retval; | |
447 | } | |
448 | ||
449 | static void __exit isku_exit(void) | |
450 | { | |
451 | hid_unregister_driver(&isku_driver); | |
452 | class_destroy(isku_class); | |
453 | } | |
454 | ||
455 | module_init(isku_init); | |
456 | module_exit(isku_exit); | |
457 | ||
458 | MODULE_AUTHOR("Stefan Achatz"); | |
ce716965 | 459 | MODULE_DESCRIPTION("USB Roccat Isku/FX driver"); |
d41c2a70 | 460 | MODULE_LICENSE("GPL v2"); |