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Commit | Line | Data |
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6f78193e CV |
1 | /* |
2 | * HID driver for Corsair devices | |
3 | * | |
4 | * Supported devices: | |
5 | * - Vengeance K90 Keyboard | |
6 | * | |
7 | * Copyright (c) 2015 Clement Vuchener | |
8 | */ | |
9 | ||
10 | /* | |
11 | * This program is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the Free | |
13 | * Software Foundation; either version 2 of the License, or (at your option) | |
14 | * any later version. | |
15 | */ | |
16 | ||
17 | #include <linux/hid.h> | |
18 | #include <linux/module.h> | |
19 | #include <linux/usb.h> | |
20 | #include <linux/leds.h> | |
21 | ||
22 | #include "hid-ids.h" | |
23 | ||
24 | #define CORSAIR_USE_K90_MACRO (1<<0) | |
25 | #define CORSAIR_USE_K90_BACKLIGHT (1<<1) | |
26 | ||
27 | struct k90_led { | |
28 | struct led_classdev cdev; | |
29 | int brightness; | |
30 | struct work_struct work; | |
937804f3 | 31 | bool removed; |
6f78193e CV |
32 | }; |
33 | ||
34 | struct k90_drvdata { | |
35 | struct k90_led record_led; | |
36 | }; | |
37 | ||
38 | struct corsair_drvdata { | |
39 | unsigned long quirks; | |
40 | struct k90_drvdata *k90; | |
41 | struct k90_led *backlight; | |
42 | }; | |
43 | ||
44 | #define K90_GKEY_COUNT 18 | |
45 | ||
46 | static int corsair_usage_to_gkey(unsigned int usage) | |
47 | { | |
48 | /* G1 (0xd0) to G16 (0xdf) */ | |
49 | if (usage >= 0xd0 && usage <= 0xdf) | |
50 | return usage - 0xd0 + 1; | |
51 | /* G17 (0xe8) to G18 (0xe9) */ | |
52 | if (usage >= 0xe8 && usage <= 0xe9) | |
53 | return usage - 0xe8 + 17; | |
54 | return 0; | |
55 | } | |
56 | ||
57 | static unsigned short corsair_gkey_map[K90_GKEY_COUNT] = { | |
58 | BTN_TRIGGER_HAPPY1, | |
59 | BTN_TRIGGER_HAPPY2, | |
60 | BTN_TRIGGER_HAPPY3, | |
61 | BTN_TRIGGER_HAPPY4, | |
62 | BTN_TRIGGER_HAPPY5, | |
63 | BTN_TRIGGER_HAPPY6, | |
64 | BTN_TRIGGER_HAPPY7, | |
65 | BTN_TRIGGER_HAPPY8, | |
66 | BTN_TRIGGER_HAPPY9, | |
67 | BTN_TRIGGER_HAPPY10, | |
68 | BTN_TRIGGER_HAPPY11, | |
69 | BTN_TRIGGER_HAPPY12, | |
70 | BTN_TRIGGER_HAPPY13, | |
71 | BTN_TRIGGER_HAPPY14, | |
72 | BTN_TRIGGER_HAPPY15, | |
73 | BTN_TRIGGER_HAPPY16, | |
74 | BTN_TRIGGER_HAPPY17, | |
75 | BTN_TRIGGER_HAPPY18, | |
76 | }; | |
77 | ||
78 | module_param_array_named(gkey_codes, corsair_gkey_map, ushort, NULL, S_IRUGO); | |
79 | MODULE_PARM_DESC(gkey_codes, "Key codes for the G-keys"); | |
80 | ||
81 | static unsigned short corsair_record_keycodes[2] = { | |
82 | BTN_TRIGGER_HAPPY19, | |
83 | BTN_TRIGGER_HAPPY20 | |
84 | }; | |
85 | ||
86 | module_param_array_named(recordkey_codes, corsair_record_keycodes, ushort, | |
87 | NULL, S_IRUGO); | |
88 | MODULE_PARM_DESC(recordkey_codes, "Key codes for the MR (start and stop record) button"); | |
89 | ||
90 | static unsigned short corsair_profile_keycodes[3] = { | |
91 | BTN_TRIGGER_HAPPY21, | |
92 | BTN_TRIGGER_HAPPY22, | |
93 | BTN_TRIGGER_HAPPY23 | |
94 | }; | |
95 | ||
96 | module_param_array_named(profilekey_codes, corsair_profile_keycodes, ushort, | |
97 | NULL, S_IRUGO); | |
98 | MODULE_PARM_DESC(profilekey_codes, "Key codes for the profile buttons"); | |
99 | ||
100 | #define CORSAIR_USAGE_SPECIAL_MIN 0xf0 | |
101 | #define CORSAIR_USAGE_SPECIAL_MAX 0xff | |
102 | ||
103 | #define CORSAIR_USAGE_MACRO_RECORD_START 0xf6 | |
104 | #define CORSAIR_USAGE_MACRO_RECORD_STOP 0xf7 | |
105 | ||
106 | #define CORSAIR_USAGE_PROFILE 0xf1 | |
107 | #define CORSAIR_USAGE_M1 0xf1 | |
108 | #define CORSAIR_USAGE_M2 0xf2 | |
109 | #define CORSAIR_USAGE_M3 0xf3 | |
110 | #define CORSAIR_USAGE_PROFILE_MAX 0xf3 | |
111 | ||
112 | #define CORSAIR_USAGE_META_OFF 0xf4 | |
113 | #define CORSAIR_USAGE_META_ON 0xf5 | |
114 | ||
115 | #define CORSAIR_USAGE_LIGHT 0xfa | |
116 | #define CORSAIR_USAGE_LIGHT_OFF 0xfa | |
117 | #define CORSAIR_USAGE_LIGHT_DIM 0xfb | |
118 | #define CORSAIR_USAGE_LIGHT_MEDIUM 0xfc | |
119 | #define CORSAIR_USAGE_LIGHT_BRIGHT 0xfd | |
120 | #define CORSAIR_USAGE_LIGHT_MAX 0xfd | |
121 | ||
122 | /* USB control protocol */ | |
123 | ||
124 | #define K90_REQUEST_BRIGHTNESS 49 | |
125 | #define K90_REQUEST_MACRO_MODE 2 | |
126 | #define K90_REQUEST_STATUS 4 | |
127 | #define K90_REQUEST_GET_MODE 5 | |
128 | #define K90_REQUEST_PROFILE 20 | |
129 | ||
130 | #define K90_MACRO_MODE_SW 0x0030 | |
131 | #define K90_MACRO_MODE_HW 0x0001 | |
132 | ||
133 | #define K90_MACRO_LED_ON 0x0020 | |
134 | #define K90_MACRO_LED_OFF 0x0040 | |
135 | ||
136 | /* | |
137 | * LED class devices | |
138 | */ | |
139 | ||
140 | #define K90_BACKLIGHT_LED_SUFFIX "::backlight" | |
141 | #define K90_RECORD_LED_SUFFIX "::record" | |
142 | ||
143 | static enum led_brightness k90_backlight_get(struct led_classdev *led_cdev) | |
144 | { | |
145 | int ret; | |
146 | struct k90_led *led = container_of(led_cdev, struct k90_led, cdev); | |
147 | struct device *dev = led->cdev.dev->parent; | |
148 | struct usb_interface *usbif = to_usb_interface(dev->parent); | |
149 | struct usb_device *usbdev = interface_to_usbdev(usbif); | |
150 | int brightness; | |
6d104af3 JH |
151 | char *data; |
152 | ||
153 | data = kmalloc(8, GFP_KERNEL); | |
154 | if (!data) | |
155 | return -ENOMEM; | |
6f78193e CV |
156 | |
157 | ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), | |
158 | K90_REQUEST_STATUS, | |
159 | USB_DIR_IN | USB_TYPE_VENDOR | | |
160 | USB_RECIP_DEVICE, 0, 0, data, 8, | |
161 | USB_CTRL_SET_TIMEOUT); | |
7a546af5 | 162 | if (ret < 5) { |
6f78193e CV |
163 | dev_warn(dev, "Failed to get K90 initial state (error %d).\n", |
164 | ret); | |
6d104af3 JH |
165 | ret = -EIO; |
166 | goto out; | |
6f78193e CV |
167 | } |
168 | brightness = data[4]; | |
169 | if (brightness < 0 || brightness > 3) { | |
170 | dev_warn(dev, | |
171 | "Read invalid backlight brightness: %02hhx.\n", | |
172 | data[4]); | |
6d104af3 JH |
173 | ret = -EIO; |
174 | goto out; | |
6f78193e | 175 | } |
6d104af3 JH |
176 | ret = brightness; |
177 | out: | |
178 | kfree(data); | |
179 | ||
180 | return ret; | |
6f78193e CV |
181 | } |
182 | ||
183 | static enum led_brightness k90_record_led_get(struct led_classdev *led_cdev) | |
184 | { | |
185 | struct k90_led *led = container_of(led_cdev, struct k90_led, cdev); | |
186 | ||
187 | return led->brightness; | |
188 | } | |
189 | ||
190 | static void k90_brightness_set(struct led_classdev *led_cdev, | |
191 | enum led_brightness brightness) | |
192 | { | |
193 | struct k90_led *led = container_of(led_cdev, struct k90_led, cdev); | |
194 | ||
195 | led->brightness = brightness; | |
196 | schedule_work(&led->work); | |
197 | } | |
198 | ||
199 | static void k90_backlight_work(struct work_struct *work) | |
200 | { | |
201 | int ret; | |
202 | struct k90_led *led = container_of(work, struct k90_led, work); | |
203 | struct device *dev; | |
204 | struct usb_interface *usbif; | |
205 | struct usb_device *usbdev; | |
206 | ||
207 | if (led->removed) | |
208 | return; | |
209 | ||
210 | dev = led->cdev.dev->parent; | |
211 | usbif = to_usb_interface(dev->parent); | |
212 | usbdev = interface_to_usbdev(usbif); | |
213 | ||
214 | ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), | |
215 | K90_REQUEST_BRIGHTNESS, | |
216 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
217 | USB_RECIP_DEVICE, led->brightness, 0, | |
218 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
219 | if (ret != 0) | |
220 | dev_warn(dev, "Failed to set backlight brightness (error: %d).\n", | |
221 | ret); | |
222 | } | |
223 | ||
224 | static void k90_record_led_work(struct work_struct *work) | |
225 | { | |
226 | int ret; | |
227 | struct k90_led *led = container_of(work, struct k90_led, work); | |
228 | struct device *dev; | |
229 | struct usb_interface *usbif; | |
230 | struct usb_device *usbdev; | |
231 | int value; | |
232 | ||
233 | if (led->removed) | |
234 | return; | |
235 | ||
236 | dev = led->cdev.dev->parent; | |
237 | usbif = to_usb_interface(dev->parent); | |
238 | usbdev = interface_to_usbdev(usbif); | |
239 | ||
240 | if (led->brightness > 0) | |
241 | value = K90_MACRO_LED_ON; | |
242 | else | |
243 | value = K90_MACRO_LED_OFF; | |
244 | ||
245 | ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), | |
246 | K90_REQUEST_MACRO_MODE, | |
247 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
248 | USB_RECIP_DEVICE, value, 0, NULL, 0, | |
249 | USB_CTRL_SET_TIMEOUT); | |
250 | if (ret != 0) | |
251 | dev_warn(dev, "Failed to set record LED state (error: %d).\n", | |
252 | ret); | |
253 | } | |
254 | ||
255 | /* | |
256 | * Keyboard attributes | |
257 | */ | |
258 | ||
259 | static ssize_t k90_show_macro_mode(struct device *dev, | |
260 | struct device_attribute *attr, char *buf) | |
261 | { | |
262 | int ret; | |
263 | struct usb_interface *usbif = to_usb_interface(dev->parent); | |
264 | struct usb_device *usbdev = interface_to_usbdev(usbif); | |
265 | const char *macro_mode; | |
6d104af3 JH |
266 | char *data; |
267 | ||
268 | data = kmalloc(2, GFP_KERNEL); | |
269 | if (!data) | |
270 | return -ENOMEM; | |
6f78193e CV |
271 | |
272 | ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), | |
273 | K90_REQUEST_GET_MODE, | |
274 | USB_DIR_IN | USB_TYPE_VENDOR | | |
275 | USB_RECIP_DEVICE, 0, 0, data, 2, | |
276 | USB_CTRL_SET_TIMEOUT); | |
7a546af5 | 277 | if (ret < 1) { |
6f78193e CV |
278 | dev_warn(dev, "Failed to get K90 initial mode (error %d).\n", |
279 | ret); | |
6d104af3 JH |
280 | ret = -EIO; |
281 | goto out; | |
6f78193e CV |
282 | } |
283 | ||
284 | switch (data[0]) { | |
285 | case K90_MACRO_MODE_HW: | |
286 | macro_mode = "HW"; | |
287 | break; | |
288 | ||
289 | case K90_MACRO_MODE_SW: | |
290 | macro_mode = "SW"; | |
291 | break; | |
292 | default: | |
293 | dev_warn(dev, "K90 in unknown mode: %02hhx.\n", | |
294 | data[0]); | |
6d104af3 JH |
295 | ret = -EIO; |
296 | goto out; | |
6f78193e CV |
297 | } |
298 | ||
6d104af3 JH |
299 | ret = snprintf(buf, PAGE_SIZE, "%s\n", macro_mode); |
300 | out: | |
301 | kfree(data); | |
302 | ||
303 | return ret; | |
6f78193e CV |
304 | } |
305 | ||
306 | static ssize_t k90_store_macro_mode(struct device *dev, | |
307 | struct device_attribute *attr, | |
308 | const char *buf, size_t count) | |
309 | { | |
310 | int ret; | |
311 | struct usb_interface *usbif = to_usb_interface(dev->parent); | |
312 | struct usb_device *usbdev = interface_to_usbdev(usbif); | |
313 | __u16 value; | |
314 | ||
315 | if (strncmp(buf, "SW", 2) == 0) | |
316 | value = K90_MACRO_MODE_SW; | |
317 | else if (strncmp(buf, "HW", 2) == 0) | |
318 | value = K90_MACRO_MODE_HW; | |
319 | else | |
320 | return -EINVAL; | |
321 | ||
322 | ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), | |
323 | K90_REQUEST_MACRO_MODE, | |
324 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
325 | USB_RECIP_DEVICE, value, 0, NULL, 0, | |
326 | USB_CTRL_SET_TIMEOUT); | |
327 | if (ret != 0) { | |
328 | dev_warn(dev, "Failed to set macro mode.\n"); | |
329 | return ret; | |
330 | } | |
331 | ||
332 | return count; | |
333 | } | |
334 | ||
335 | static ssize_t k90_show_current_profile(struct device *dev, | |
336 | struct device_attribute *attr, | |
337 | char *buf) | |
338 | { | |
339 | int ret; | |
340 | struct usb_interface *usbif = to_usb_interface(dev->parent); | |
341 | struct usb_device *usbdev = interface_to_usbdev(usbif); | |
342 | int current_profile; | |
6d104af3 JH |
343 | char *data; |
344 | ||
345 | data = kmalloc(8, GFP_KERNEL); | |
346 | if (!data) | |
347 | return -ENOMEM; | |
6f78193e CV |
348 | |
349 | ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), | |
350 | K90_REQUEST_STATUS, | |
351 | USB_DIR_IN | USB_TYPE_VENDOR | | |
352 | USB_RECIP_DEVICE, 0, 0, data, 8, | |
353 | USB_CTRL_SET_TIMEOUT); | |
7a546af5 | 354 | if (ret < 8) { |
6f78193e CV |
355 | dev_warn(dev, "Failed to get K90 initial state (error %d).\n", |
356 | ret); | |
6d104af3 JH |
357 | ret = -EIO; |
358 | goto out; | |
6f78193e CV |
359 | } |
360 | current_profile = data[7]; | |
361 | if (current_profile < 1 || current_profile > 3) { | |
362 | dev_warn(dev, "Read invalid current profile: %02hhx.\n", | |
363 | data[7]); | |
6d104af3 JH |
364 | ret = -EIO; |
365 | goto out; | |
6f78193e CV |
366 | } |
367 | ||
6d104af3 JH |
368 | ret = snprintf(buf, PAGE_SIZE, "%d\n", current_profile); |
369 | out: | |
370 | kfree(data); | |
371 | ||
372 | return ret; | |
6f78193e CV |
373 | } |
374 | ||
375 | static ssize_t k90_store_current_profile(struct device *dev, | |
376 | struct device_attribute *attr, | |
377 | const char *buf, size_t count) | |
378 | { | |
379 | int ret; | |
380 | struct usb_interface *usbif = to_usb_interface(dev->parent); | |
381 | struct usb_device *usbdev = interface_to_usbdev(usbif); | |
382 | int profile; | |
383 | ||
384 | if (kstrtoint(buf, 10, &profile)) | |
385 | return -EINVAL; | |
386 | if (profile < 1 || profile > 3) | |
387 | return -EINVAL; | |
388 | ||
389 | ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), | |
390 | K90_REQUEST_PROFILE, | |
391 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
392 | USB_RECIP_DEVICE, profile, 0, NULL, 0, | |
393 | USB_CTRL_SET_TIMEOUT); | |
394 | if (ret != 0) { | |
395 | dev_warn(dev, "Failed to change current profile (error %d).\n", | |
396 | ret); | |
397 | return ret; | |
398 | } | |
399 | ||
400 | return count; | |
401 | } | |
402 | ||
403 | static DEVICE_ATTR(macro_mode, 0644, k90_show_macro_mode, k90_store_macro_mode); | |
404 | static DEVICE_ATTR(current_profile, 0644, k90_show_current_profile, | |
405 | k90_store_current_profile); | |
406 | ||
407 | static struct attribute *k90_attrs[] = { | |
408 | &dev_attr_macro_mode.attr, | |
409 | &dev_attr_current_profile.attr, | |
410 | NULL | |
411 | }; | |
412 | ||
413 | static const struct attribute_group k90_attr_group = { | |
414 | .attrs = k90_attrs, | |
415 | }; | |
416 | ||
417 | /* | |
418 | * Driver functions | |
419 | */ | |
420 | ||
421 | static int k90_init_backlight(struct hid_device *dev) | |
422 | { | |
423 | int ret; | |
424 | struct corsair_drvdata *drvdata = hid_get_drvdata(dev); | |
425 | size_t name_sz; | |
426 | char *name; | |
427 | ||
428 | drvdata->backlight = kzalloc(sizeof(struct k90_led), GFP_KERNEL); | |
429 | if (!drvdata->backlight) { | |
430 | ret = -ENOMEM; | |
431 | goto fail_backlight_alloc; | |
432 | } | |
433 | ||
434 | name_sz = | |
435 | strlen(dev_name(&dev->dev)) + sizeof(K90_BACKLIGHT_LED_SUFFIX); | |
436 | name = kzalloc(name_sz, GFP_KERNEL); | |
437 | if (!name) { | |
438 | ret = -ENOMEM; | |
439 | goto fail_name_alloc; | |
440 | } | |
441 | snprintf(name, name_sz, "%s" K90_BACKLIGHT_LED_SUFFIX, | |
442 | dev_name(&dev->dev)); | |
937804f3 | 443 | drvdata->backlight->removed = false; |
6f78193e CV |
444 | drvdata->backlight->cdev.name = name; |
445 | drvdata->backlight->cdev.max_brightness = 3; | |
446 | drvdata->backlight->cdev.brightness_set = k90_brightness_set; | |
447 | drvdata->backlight->cdev.brightness_get = k90_backlight_get; | |
448 | INIT_WORK(&drvdata->backlight->work, k90_backlight_work); | |
449 | ret = led_classdev_register(&dev->dev, &drvdata->backlight->cdev); | |
450 | if (ret != 0) | |
451 | goto fail_register_cdev; | |
452 | ||
453 | return 0; | |
454 | ||
455 | fail_register_cdev: | |
456 | kfree(drvdata->backlight->cdev.name); | |
457 | fail_name_alloc: | |
458 | kfree(drvdata->backlight); | |
459 | drvdata->backlight = NULL; | |
460 | fail_backlight_alloc: | |
461 | return ret; | |
462 | } | |
463 | ||
464 | static int k90_init_macro_functions(struct hid_device *dev) | |
465 | { | |
466 | int ret; | |
467 | struct corsair_drvdata *drvdata = hid_get_drvdata(dev); | |
468 | struct k90_drvdata *k90; | |
469 | size_t name_sz; | |
470 | char *name; | |
471 | ||
472 | k90 = kzalloc(sizeof(struct k90_drvdata), GFP_KERNEL); | |
473 | if (!k90) { | |
474 | ret = -ENOMEM; | |
475 | goto fail_drvdata; | |
476 | } | |
477 | drvdata->k90 = k90; | |
478 | ||
479 | /* Init LED device for record LED */ | |
480 | name_sz = strlen(dev_name(&dev->dev)) + sizeof(K90_RECORD_LED_SUFFIX); | |
481 | name = kzalloc(name_sz, GFP_KERNEL); | |
482 | if (!name) { | |
483 | ret = -ENOMEM; | |
484 | goto fail_record_led_alloc; | |
485 | } | |
486 | snprintf(name, name_sz, "%s" K90_RECORD_LED_SUFFIX, | |
487 | dev_name(&dev->dev)); | |
937804f3 | 488 | k90->record_led.removed = false; |
6f78193e CV |
489 | k90->record_led.cdev.name = name; |
490 | k90->record_led.cdev.max_brightness = 1; | |
491 | k90->record_led.cdev.brightness_set = k90_brightness_set; | |
492 | k90->record_led.cdev.brightness_get = k90_record_led_get; | |
493 | INIT_WORK(&k90->record_led.work, k90_record_led_work); | |
494 | k90->record_led.brightness = 0; | |
495 | ret = led_classdev_register(&dev->dev, &k90->record_led.cdev); | |
496 | if (ret != 0) | |
497 | goto fail_record_led; | |
498 | ||
499 | /* Init attributes */ | |
500 | ret = sysfs_create_group(&dev->dev.kobj, &k90_attr_group); | |
501 | if (ret != 0) | |
502 | goto fail_sysfs; | |
503 | ||
504 | return 0; | |
505 | ||
506 | fail_sysfs: | |
937804f3 | 507 | k90->record_led.removed = true; |
6f78193e CV |
508 | led_classdev_unregister(&k90->record_led.cdev); |
509 | cancel_work_sync(&k90->record_led.work); | |
510 | fail_record_led: | |
511 | kfree(k90->record_led.cdev.name); | |
512 | fail_record_led_alloc: | |
513 | kfree(k90); | |
514 | fail_drvdata: | |
515 | drvdata->k90 = NULL; | |
516 | return ret; | |
517 | } | |
518 | ||
519 | static void k90_cleanup_backlight(struct hid_device *dev) | |
520 | { | |
521 | struct corsair_drvdata *drvdata = hid_get_drvdata(dev); | |
522 | ||
523 | if (drvdata->backlight) { | |
937804f3 | 524 | drvdata->backlight->removed = true; |
6f78193e CV |
525 | led_classdev_unregister(&drvdata->backlight->cdev); |
526 | cancel_work_sync(&drvdata->backlight->work); | |
527 | kfree(drvdata->backlight->cdev.name); | |
528 | kfree(drvdata->backlight); | |
529 | } | |
530 | } | |
531 | ||
532 | static void k90_cleanup_macro_functions(struct hid_device *dev) | |
533 | { | |
534 | struct corsair_drvdata *drvdata = hid_get_drvdata(dev); | |
535 | struct k90_drvdata *k90 = drvdata->k90; | |
536 | ||
537 | if (k90) { | |
538 | sysfs_remove_group(&dev->dev.kobj, &k90_attr_group); | |
539 | ||
937804f3 | 540 | k90->record_led.removed = true; |
6f78193e CV |
541 | led_classdev_unregister(&k90->record_led.cdev); |
542 | cancel_work_sync(&k90->record_led.work); | |
543 | kfree(k90->record_led.cdev.name); | |
544 | ||
545 | kfree(k90); | |
546 | } | |
547 | } | |
548 | ||
549 | static int corsair_probe(struct hid_device *dev, const struct hid_device_id *id) | |
550 | { | |
551 | int ret; | |
552 | unsigned long quirks = id->driver_data; | |
553 | struct corsair_drvdata *drvdata; | |
554 | struct usb_interface *usbif = to_usb_interface(dev->dev.parent); | |
555 | ||
556 | drvdata = devm_kzalloc(&dev->dev, sizeof(struct corsair_drvdata), | |
557 | GFP_KERNEL); | |
558 | if (drvdata == NULL) | |
559 | return -ENOMEM; | |
560 | drvdata->quirks = quirks; | |
561 | hid_set_drvdata(dev, drvdata); | |
562 | ||
563 | ret = hid_parse(dev); | |
564 | if (ret != 0) { | |
565 | hid_err(dev, "parse failed\n"); | |
566 | return ret; | |
567 | } | |
568 | ret = hid_hw_start(dev, HID_CONNECT_DEFAULT); | |
569 | if (ret != 0) { | |
570 | hid_err(dev, "hw start failed\n"); | |
571 | return ret; | |
572 | } | |
573 | ||
574 | if (usbif->cur_altsetting->desc.bInterfaceNumber == 0) { | |
575 | if (quirks & CORSAIR_USE_K90_MACRO) { | |
576 | ret = k90_init_macro_functions(dev); | |
577 | if (ret != 0) | |
578 | hid_warn(dev, "Failed to initialize K90 macro functions.\n"); | |
579 | } | |
580 | if (quirks & CORSAIR_USE_K90_BACKLIGHT) { | |
581 | ret = k90_init_backlight(dev); | |
582 | if (ret != 0) | |
583 | hid_warn(dev, "Failed to initialize K90 backlight.\n"); | |
584 | } | |
585 | } | |
586 | ||
587 | return 0; | |
588 | } | |
589 | ||
590 | static void corsair_remove(struct hid_device *dev) | |
591 | { | |
592 | k90_cleanup_macro_functions(dev); | |
593 | k90_cleanup_backlight(dev); | |
594 | ||
595 | hid_hw_stop(dev); | |
596 | } | |
597 | ||
598 | static int corsair_event(struct hid_device *dev, struct hid_field *field, | |
599 | struct hid_usage *usage, __s32 value) | |
600 | { | |
601 | struct corsair_drvdata *drvdata = hid_get_drvdata(dev); | |
602 | ||
603 | if (!drvdata->k90) | |
604 | return 0; | |
605 | ||
606 | switch (usage->hid & HID_USAGE) { | |
607 | case CORSAIR_USAGE_MACRO_RECORD_START: | |
608 | drvdata->k90->record_led.brightness = 1; | |
609 | break; | |
610 | case CORSAIR_USAGE_MACRO_RECORD_STOP: | |
611 | drvdata->k90->record_led.brightness = 0; | |
612 | break; | |
613 | default: | |
614 | break; | |
615 | } | |
616 | ||
617 | return 0; | |
618 | } | |
619 | ||
620 | static int corsair_input_mapping(struct hid_device *dev, | |
621 | struct hid_input *input, | |
622 | struct hid_field *field, | |
623 | struct hid_usage *usage, unsigned long **bit, | |
624 | int *max) | |
625 | { | |
626 | int gkey; | |
627 | ||
e791f7b1 CV |
628 | if ((usage->hid & HID_USAGE_PAGE) != HID_UP_KEYBOARD) |
629 | return 0; | |
630 | ||
6f78193e CV |
631 | gkey = corsair_usage_to_gkey(usage->hid & HID_USAGE); |
632 | if (gkey != 0) { | |
633 | hid_map_usage_clear(input, usage, bit, max, EV_KEY, | |
634 | corsair_gkey_map[gkey - 1]); | |
635 | return 1; | |
636 | } | |
637 | if ((usage->hid & HID_USAGE) >= CORSAIR_USAGE_SPECIAL_MIN && | |
638 | (usage->hid & HID_USAGE) <= CORSAIR_USAGE_SPECIAL_MAX) { | |
639 | switch (usage->hid & HID_USAGE) { | |
640 | case CORSAIR_USAGE_MACRO_RECORD_START: | |
641 | hid_map_usage_clear(input, usage, bit, max, EV_KEY, | |
642 | corsair_record_keycodes[0]); | |
643 | return 1; | |
644 | ||
645 | case CORSAIR_USAGE_MACRO_RECORD_STOP: | |
646 | hid_map_usage_clear(input, usage, bit, max, EV_KEY, | |
647 | corsair_record_keycodes[1]); | |
648 | return 1; | |
649 | ||
650 | case CORSAIR_USAGE_M1: | |
651 | hid_map_usage_clear(input, usage, bit, max, EV_KEY, | |
652 | corsair_profile_keycodes[0]); | |
653 | return 1; | |
654 | ||
655 | case CORSAIR_USAGE_M2: | |
656 | hid_map_usage_clear(input, usage, bit, max, EV_KEY, | |
657 | corsair_profile_keycodes[1]); | |
658 | return 1; | |
659 | ||
660 | case CORSAIR_USAGE_M3: | |
661 | hid_map_usage_clear(input, usage, bit, max, EV_KEY, | |
662 | corsair_profile_keycodes[2]); | |
663 | return 1; | |
664 | ||
665 | default: | |
666 | return -1; | |
667 | } | |
668 | } | |
669 | ||
670 | return 0; | |
671 | } | |
672 | ||
673 | static const struct hid_device_id corsair_devices[] = { | |
674 | { HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K90), | |
675 | .driver_data = CORSAIR_USE_K90_MACRO | | |
676 | CORSAIR_USE_K90_BACKLIGHT }, | |
677 | {} | |
678 | }; | |
679 | ||
680 | MODULE_DEVICE_TABLE(hid, corsair_devices); | |
681 | ||
682 | static struct hid_driver corsair_driver = { | |
683 | .name = "corsair", | |
684 | .id_table = corsair_devices, | |
685 | .probe = corsair_probe, | |
686 | .event = corsair_event, | |
687 | .remove = corsair_remove, | |
688 | .input_mapping = corsair_input_mapping, | |
689 | }; | |
690 | ||
e3fed748 | 691 | module_hid_driver(corsair_driver); |
6f78193e CV |
692 | |
693 | MODULE_LICENSE("GPL"); | |
694 | MODULE_AUTHOR("Clement Vuchener"); | |
695 | MODULE_DESCRIPTION("HID driver for Corsair devices"); |