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1 | /* |
2 | * HID Sensors Driver |
3 | * Copyright (c) 2012, Intel Corporation. |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify it |
6 | * under the terms and conditions of the GNU General Public License, |
7 | * version 2, as published by the Free Software Foundation. |
8 | * |
9 | * This program is distributed in the hope it will be useful, but WITHOUT |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
12 | * more details. |
13 | * |
14 | * You should have received a copy of the GNU General Public License along with |
15 | * this program; if not, write to the Free Software Foundation, Inc., |
16 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
17 | * |
18 | */ |
19 | #include <linux/device.h> |
20 | #include <linux/hid.h> |
21 | #include <linux/usb.h> |
22 | #include "usbhid/usbhid.h" |
23 | #include <linux/module.h> |
24 | #include <linux/slab.h> |
25 | #include <linux/mfd/core.h> |
26 | #include <linux/list.h> |
27 | #include <linux/hid-sensor-ids.h> |
28 | #include <linux/hid-sensor-hub.h> |
29 | #include "hid-ids.h" |
30 | |
31 | /** |
32 | * struct sensor_hub_pending - Synchronous read pending information |
33 | * @status: Pending status true/false. |
34 | * @ready: Completion synchronization data. |
35 | * @usage_id: Usage id for physical device, E.g. Gyro usage id. |
36 | * @attr_usage_id: Usage Id of a field, E.g. X-AXIS for a gyro. |
37 | * @raw_size: Response size for a read request. |
38 | * @raw_data: Place holder for received response. |
39 | */ |
40 | struct sensor_hub_pending { |
41 | bool status; |
42 | struct completion ready; |
43 | u32 usage_id; |
44 | u32 attr_usage_id; |
45 | int raw_size; |
46 | u8 *raw_data; |
47 | }; |
48 | |
49 | /** |
50 | * struct sensor_hub_data - Hold a instance data for a HID hub device |
51 | * @hsdev: Stored hid instance for current hub device. |
52 | * @mutex: Mutex to serialize synchronous request. |
53 | * @lock: Spin lock to protect pending request structure. |
54 | * @pending: Holds information of pending sync read request. |
55 | * @dyn_callback_list: Holds callback function |
56 | * @dyn_callback_lock: spin lock to protect callback list |
57 | * @hid_sensor_hub_client_devs: Stores all MFD cells for a hub instance. |
58 | * @hid_sensor_client_cnt: Number of MFD cells, (no of sensors attached). |
59 | */ |
60 | struct sensor_hub_data { |
61 | struct hid_sensor_hub_device *hsdev; |
62 | struct mutex mutex; |
63 | spinlock_t lock; |
64 | struct sensor_hub_pending pending; |
65 | struct list_head dyn_callback_list; |
66 | spinlock_t dyn_callback_lock; |
67 | struct mfd_cell *hid_sensor_hub_client_devs; |
68 | int hid_sensor_client_cnt; |
69 | }; |
70 | |
71 | /** |
72 | * struct hid_sensor_hub_callbacks_list - Stores callback list |
73 | * @list: list head. |
74 | * @usage_id: usage id for a physical device. |
75 | * @usage_callback: Stores registered callback functions. |
76 | * @priv: Private data for a physical device. |
77 | */ |
78 | struct hid_sensor_hub_callbacks_list { |
79 | struct list_head list; |
80 | u32 usage_id; |
81 | struct hid_sensor_hub_callbacks *usage_callback; |
82 | void *priv; |
83 | }; |
84 | |
85 | static struct hid_report *sensor_hub_report(int id, struct hid_device *hdev, |
86 | int dir) |
87 | { |
88 | struct hid_report *report; |
89 | |
90 | list_for_each_entry(report, &hdev->report_enum[dir].report_list, list) { |
91 | if (report->id == id) |
92 | return report; |
93 | } |
94 | hid_warn(hdev, "No report with id 0x%x found\n", id); |
95 | |
96 | return NULL; |
97 | } |
98 | |
99 | static int sensor_hub_get_physical_device_count( |
100 | struct hid_report_enum *report_enum) |
101 | { |
102 | struct hid_report *report; |
103 | struct hid_field *field; |
104 | int cnt = 0; |
105 | |
106 | list_for_each_entry(report, &report_enum->report_list, list) { |
107 | field = report->field[0]; |
108 | if (report->maxfield && field && |
109 | field->physical) |
110 | cnt++; |
111 | } |
112 | |
113 | return cnt; |
114 | } |
115 | |
116 | static void sensor_hub_fill_attr_info( |
117 | struct hid_sensor_hub_attribute_info *info, |
118 | s32 index, s32 report_id, s32 units, s32 unit_expo, s32 size) |
119 | { |
120 | info->index = index; |
121 | info->report_id = report_id; |
122 | info->units = units; |
123 | info->unit_expo = unit_expo; |
124 | info->size = size/8; |
125 | } |
126 | |
127 | static struct hid_sensor_hub_callbacks *sensor_hub_get_callback( |
128 | struct hid_device *hdev, |
129 | u32 usage_id, void **priv) |
130 | { |
131 | struct hid_sensor_hub_callbacks_list *callback; |
132 | struct sensor_hub_data *pdata = hid_get_drvdata(hdev); |
133 | |
134 | spin_lock(&pdata->dyn_callback_lock); |
135 | list_for_each_entry(callback, &pdata->dyn_callback_list, list) |
136 | if (callback->usage_id == usage_id) { |
137 | *priv = callback->priv; |
138 | spin_unlock(&pdata->dyn_callback_lock); |
139 | return callback->usage_callback; |
140 | } |
141 | spin_unlock(&pdata->dyn_callback_lock); |
142 | |
143 | return NULL; |
144 | } |
145 | |
146 | int sensor_hub_register_callback(struct hid_sensor_hub_device *hsdev, |
147 | u32 usage_id, |
148 | struct hid_sensor_hub_callbacks *usage_callback) |
149 | { |
150 | struct hid_sensor_hub_callbacks_list *callback; |
151 | struct sensor_hub_data *pdata = hid_get_drvdata(hsdev->hdev); |
152 | |
153 | spin_lock(&pdata->dyn_callback_lock); |
154 | list_for_each_entry(callback, &pdata->dyn_callback_list, list) |
155 | if (callback->usage_id == usage_id) { |
156 | spin_unlock(&pdata->dyn_callback_lock); |
157 | return -EINVAL; |
158 | } |
159 | callback = kzalloc(sizeof(*callback), GFP_ATOMIC); |
160 | if (!callback) { |
161 | spin_unlock(&pdata->dyn_callback_lock); |
162 | return -ENOMEM; |
163 | } |
164 | callback->usage_callback = usage_callback; |
165 | callback->usage_id = usage_id; |
166 | callback->priv = NULL; |
167 | list_add_tail(&callback->list, &pdata->dyn_callback_list); |
168 | spin_unlock(&pdata->dyn_callback_lock); |
169 | |
170 | return 0; |
171 | } |
172 | EXPORT_SYMBOL_GPL(sensor_hub_register_callback); |
173 | |
174 | int sensor_hub_remove_callback(struct hid_sensor_hub_device *hsdev, |
175 | u32 usage_id) |
176 | { |
177 | struct hid_sensor_hub_callbacks_list *callback; |
178 | struct sensor_hub_data *pdata = hid_get_drvdata(hsdev->hdev); |
179 | |
180 | spin_lock(&pdata->dyn_callback_lock); |
181 | list_for_each_entry(callback, &pdata->dyn_callback_list, list) |
182 | if (callback->usage_id == usage_id) { |
183 | list_del(&callback->list); |
184 | kfree(callback); |
185 | break; |
186 | } |
187 | spin_unlock(&pdata->dyn_callback_lock); |
188 | |
189 | return 0; |
190 | } |
191 | EXPORT_SYMBOL_GPL(sensor_hub_remove_callback); |
192 | |
193 | int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id, |
194 | u32 field_index, s32 value) |
195 | { |
196 | struct hid_report *report; |
197 | struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev); |
198 | int ret = 0; |
199 | |
200 | mutex_lock(&data->mutex); |
201 | report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT); |
202 | if (!report || (field_index >= report->maxfield)) { |
203 | ret = -EINVAL; |
204 | goto done_proc; |
205 | } |
206 | hid_set_field(report->field[field_index], 0, value); |
207 | usbhid_submit_report(hsdev->hdev, report, USB_DIR_OUT); |
208 | usbhid_wait_io(hsdev->hdev); |
209 | |
210 | done_proc: |
211 | mutex_unlock(&data->mutex); |
212 | |
213 | return ret; |
214 | } |
215 | EXPORT_SYMBOL_GPL(sensor_hub_set_feature); |
216 | |
217 | int sensor_hub_get_feature(struct hid_sensor_hub_device *hsdev, u32 report_id, |
218 | u32 field_index, s32 *value) |
219 | { |
220 | struct hid_report *report; |
221 | struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev); |
222 | int ret = 0; |
223 | |
224 | mutex_lock(&data->mutex); |
225 | report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT); |
226 | if (!report || (field_index >= report->maxfield)) { |
227 | ret = -EINVAL; |
228 | goto done_proc; |
229 | } |
230 | usbhid_submit_report(hsdev->hdev, report, USB_DIR_IN); |
231 | usbhid_wait_io(hsdev->hdev); |
232 | *value = report->field[field_index]->value[0]; |
233 | |
234 | done_proc: |
235 | mutex_unlock(&data->mutex); |
236 | |
237 | return ret; |
238 | } |
239 | EXPORT_SYMBOL_GPL(sensor_hub_get_feature); |
240 | |
241 | |
242 | int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev, |
243 | u32 usage_id, |
244 | u32 attr_usage_id, u32 report_id) |
245 | { |
246 | struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev); |
247 | unsigned long flags; |
248 | struct hid_report *report; |
249 | int ret_val = 0; |
250 | |
251 | mutex_lock(&data->mutex); |
252 | memset(&data->pending, 0, sizeof(data->pending)); |
253 | init_completion(&data->pending.ready); |
254 | data->pending.usage_id = usage_id; |
255 | data->pending.attr_usage_id = attr_usage_id; |
256 | data->pending.raw_size = 0; |
257 | |
258 | spin_lock_irqsave(&data->lock, flags); |
259 | data->pending.status = true; |
260 | report = sensor_hub_report(report_id, hsdev->hdev, HID_INPUT_REPORT); |
261 | if (!report) { |
262 | spin_unlock_irqrestore(&data->lock, flags); |
263 | goto err_free; |
264 | } |
265 | usbhid_submit_report(hsdev->hdev, report, USB_DIR_IN); |
266 | spin_unlock_irqrestore(&data->lock, flags); |
267 | wait_for_completion_interruptible_timeout(&data->pending.ready, HZ*5); |
268 | switch (data->pending.raw_size) { |
269 | case 1: |
270 | ret_val = *(u8 *)data->pending.raw_data; |
271 | break; |
272 | case 2: |
273 | ret_val = *(u16 *)data->pending.raw_data; |
274 | break; |
275 | case 4: |
276 | ret_val = *(u32 *)data->pending.raw_data; |
277 | break; |
278 | default: |
279 | ret_val = 0; |
280 | } |
281 | kfree(data->pending.raw_data); |
282 | |
283 | err_free: |
284 | data->pending.status = false; |
285 | mutex_unlock(&data->mutex); |
286 | |
287 | return ret_val; |
288 | } |
289 | EXPORT_SYMBOL_GPL(sensor_hub_input_attr_get_raw_value); |
290 | |
291 | int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev, |
292 | u8 type, |
293 | u32 usage_id, |
294 | u32 attr_usage_id, |
295 | struct hid_sensor_hub_attribute_info *info) |
296 | { |
297 | int ret = -1; |
298 | int i, j; |
299 | int collection_index = -1; |
300 | struct hid_report *report; |
301 | struct hid_field *field; |
302 | struct hid_report_enum *report_enum; |
303 | struct hid_device *hdev = hsdev->hdev; |
304 | |
305 | /* Initialize with defaults */ |
306 | info->usage_id = usage_id; |
307 | info->attrib_id = attr_usage_id; |
308 | info->report_id = -1; |
309 | info->index = -1; |
310 | info->units = -1; |
311 | info->unit_expo = -1; |
312 | |
313 | for (i = 0; i < hdev->maxcollection; ++i) { |
314 | struct hid_collection *collection = &hdev->collection[i]; |
315 | if (usage_id == collection->usage) { |
316 | collection_index = i; |
317 | break; |
318 | } |
319 | } |
320 | if (collection_index == -1) |
321 | goto err_ret; |
322 | |
323 | report_enum = &hdev->report_enum[type]; |
324 | list_for_each_entry(report, &report_enum->report_list, list) { |
325 | for (i = 0; i < report->maxfield; ++i) { |
326 | field = report->field[i]; |
327 | if (field->physical == usage_id && |
328 | field->logical == attr_usage_id) { |
329 | sensor_hub_fill_attr_info(info, i, report->id, |
330 | field->unit, field->unit_exponent, |
331 | field->report_size); |
332 | ret = 0; |
333 | } else { |
334 | for (j = 0; j < field->maxusage; ++j) { |
335 | if (field->usage[j].hid == |
336 | attr_usage_id && |
337 | field->usage[j].collection_index == |
338 | collection_index) { |
339 | sensor_hub_fill_attr_info(info, |
340 | i, report->id, |
341 | field->unit, |
342 | field->unit_exponent, |
343 | field->report_size); |
344 | ret = 0; |
345 | break; |
346 | } |
347 | } |
348 | } |
349 | if (ret == 0) |
350 | break; |
351 | } |
352 | } |
353 | |
354 | err_ret: |
355 | return ret; |
356 | } |
357 | EXPORT_SYMBOL_GPL(sensor_hub_input_get_attribute_info); |
358 | |
359 | #ifdef CONFIG_PM |
360 | static int sensor_hub_suspend(struct hid_device *hdev, pm_message_t message) |
361 | { |
362 | struct sensor_hub_data *pdata = hid_get_drvdata(hdev); |
363 | struct hid_sensor_hub_callbacks_list *callback; |
364 | |
365 | hid_dbg(hdev, " sensor_hub_suspend\n"); |
366 | spin_lock(&pdata->dyn_callback_lock); |
367 | list_for_each_entry(callback, &pdata->dyn_callback_list, list) { |
368 | if (callback->usage_callback->suspend) |
369 | callback->usage_callback->suspend( |
370 | pdata->hsdev, callback->priv); |
371 | } |
372 | spin_unlock(&pdata->dyn_callback_lock); |
373 | |
374 | return 0; |
375 | } |
376 | |
377 | static int sensor_hub_resume(struct hid_device *hdev) |
378 | { |
379 | struct sensor_hub_data *pdata = hid_get_drvdata(hdev); |
380 | struct hid_sensor_hub_callbacks_list *callback; |
381 | |
382 | hid_dbg(hdev, " sensor_hub_resume\n"); |
383 | spin_lock(&pdata->dyn_callback_lock); |
384 | list_for_each_entry(callback, &pdata->dyn_callback_list, list) { |
385 | if (callback->usage_callback->resume) |
386 | callback->usage_callback->resume( |
387 | pdata->hsdev, callback->priv); |
388 | } |
389 | spin_unlock(&pdata->dyn_callback_lock); |
390 | |
391 | return 0; |
392 | } |
393 | |
394 | static int sensor_hub_reset_resume(struct hid_device *hdev) |
395 | { |
396 | return 0; |
397 | } |
398 | #endif |
399 | /* |
400 | * Handle raw report as sent by device |
401 | */ |
402 | static int sensor_hub_raw_event(struct hid_device *hdev, |
403 | struct hid_report *report, u8 *raw_data, int size) |
404 | { |
405 | int i; |
406 | u8 *ptr; |
407 | int sz; |
408 | struct sensor_hub_data *pdata = hid_get_drvdata(hdev); |
409 | unsigned long flags; |
410 | struct hid_sensor_hub_callbacks *callback = NULL; |
411 | struct hid_collection *collection = NULL; |
412 | void *priv = NULL; |
413 | |
414 | hid_dbg(hdev, "sensor_hub_raw_event report id:0x%x size:%d type:%d\n", |
415 | report->id, size, report->type); |
416 | hid_dbg(hdev, "maxfield:%d\n", report->maxfield); |
417 | if (report->type != HID_INPUT_REPORT) |
418 | return 1; |
419 | |
420 | ptr = raw_data; |
421 | ptr++; /*Skip report id*/ |
422 | |
423 | spin_lock_irqsave(&pdata->lock, flags); |
424 | |
425 | for (i = 0; i < report->maxfield; ++i) { |
426 | |
427 | hid_dbg(hdev, "%d collection_index:%x hid:%x sz:%x\n", |
428 | i, report->field[i]->usage->collection_index, |
429 | report->field[i]->usage->hid, |
430 | report->field[i]->report_size/8); |
431 | |
432 | sz = report->field[i]->report_size/8; |
433 | if (pdata->pending.status && pdata->pending.attr_usage_id == |
434 | report->field[i]->usage->hid) { |
435 | hid_dbg(hdev, "data was pending ...\n"); |
436 | pdata->pending.raw_data = kmalloc(sz, GFP_ATOMIC); |
437 | if (pdata->pending.raw_data) { |
438 | memcpy(pdata->pending.raw_data, ptr, sz); |
439 | pdata->pending.raw_size = sz; |
440 | } else |
441 | pdata->pending.raw_size = 0; |
442 | complete(&pdata->pending.ready); |
443 | } |
444 | collection = &hdev->collection[ |
445 | report->field[i]->usage->collection_index]; |
446 | hid_dbg(hdev, "collection->usage %x\n", |
447 | collection->usage); |
448 | callback = sensor_hub_get_callback(pdata->hsdev->hdev, |
449 | report->field[i]->physical, |
450 | &priv); |
451 | if (callback && callback->capture_sample) { |
452 | if (report->field[i]->logical) |
453 | callback->capture_sample(pdata->hsdev, |
454 | report->field[i]->logical, sz, ptr, |
455 | callback->pdev); |
456 | else |
457 | callback->capture_sample(pdata->hsdev, |
458 | report->field[i]->usage->hid, sz, ptr, |
459 | callback->pdev); |
460 | } |
461 | ptr += sz; |
462 | } |
463 | if (callback && collection && callback->send_event) |
464 | callback->send_event(pdata->hsdev, collection->usage, |
465 | callback->pdev); |
466 | spin_unlock_irqrestore(&pdata->lock, flags); |
467 | |
468 | return 1; |
469 | } |
470 | |
471 | static int sensor_hub_probe(struct hid_device *hdev, |
472 | const struct hid_device_id *id) |
473 | { |
474 | int ret; |
475 | struct sensor_hub_data *sd; |
476 | int i; |
477 | char *name; |
478 | struct hid_report *report; |
479 | struct hid_report_enum *report_enum; |
480 | struct hid_field *field; |
481 | int dev_cnt; |
482 | |
483 | sd = kzalloc(sizeof(struct sensor_hub_data), GFP_KERNEL); |
484 | if (!sd) { |
485 | hid_err(hdev, "cannot allocate Sensor data\n"); |
486 | return -ENOMEM; |
487 | } |
488 | sd->hsdev = kzalloc(sizeof(struct hid_sensor_hub_device), GFP_KERNEL); |
489 | if (!sd->hsdev) { |
490 | hid_err(hdev, "cannot allocate hid_sensor_hub_device\n"); |
491 | ret = -ENOMEM; |
492 | goto err_free_hub; |
493 | } |
494 | hid_set_drvdata(hdev, sd); |
495 | sd->hsdev->hdev = hdev; |
496 | sd->hsdev->vendor_id = hdev->vendor; |
497 | sd->hsdev->product_id = hdev->product; |
498 | spin_lock_init(&sd->lock); |
499 | spin_lock_init(&sd->dyn_callback_lock); |
500 | mutex_init(&sd->mutex); |
501 | ret = hid_parse(hdev); |
502 | if (ret) { |
503 | hid_err(hdev, "parse failed\n"); |
504 | goto err_free; |
505 | } |
506 | INIT_LIST_HEAD(&hdev->inputs); |
507 | |
508 | ret = hid_hw_start(hdev, 0); |
509 | if (ret) { |
510 | hid_err(hdev, "hw start failed\n"); |
511 | goto err_free; |
512 | } |
513 | ret = hid_hw_open(hdev); |
514 | if (ret) { |
515 | hid_err(hdev, "failed to open input interrupt pipe\n"); |
516 | goto err_stop_hw; |
517 | } |
518 | |
519 | INIT_LIST_HEAD(&sd->dyn_callback_list); |
520 | sd->hid_sensor_client_cnt = 0; |
521 | report_enum = &hdev->report_enum[HID_INPUT_REPORT]; |
522 | |
523 | dev_cnt = sensor_hub_get_physical_device_count(report_enum); |
524 | if (dev_cnt > HID_MAX_PHY_DEVICES) { |
525 | hid_err(hdev, "Invalid Physical device count\n"); |
526 | ret = -EINVAL; |
527 | goto err_close; |
528 | } |
529 | sd->hid_sensor_hub_client_devs = kzalloc(dev_cnt * |
530 | sizeof(struct mfd_cell), |
531 | GFP_KERNEL); |
532 | if (sd->hid_sensor_hub_client_devs == NULL) { |
533 | hid_err(hdev, "Failed to allocate memory for mfd cells\n"); |
534 | ret = -ENOMEM; |
535 | goto err_close; |
536 | } |
537 | list_for_each_entry(report, &report_enum->report_list, list) { |
538 | hid_dbg(hdev, "Report id:%x\n", report->id); |
539 | field = report->field[0]; |
540 | if (report->maxfield && field && |
541 | field->physical) { |
542 | name = kasprintf(GFP_KERNEL, "HID-SENSOR-%x", |
543 | field->physical); |
544 | if (name == NULL) { |
545 | hid_err(hdev, "Failed MFD device name\n"); |
546 | ret = -ENOMEM; |
547 | goto err_free_names; |
548 | } |
549 | sd->hid_sensor_hub_client_devs[ |
550 | sd->hid_sensor_client_cnt].name = name; |
551 | sd->hid_sensor_hub_client_devs[ |
552 | sd->hid_sensor_client_cnt].platform_data = |
553 | sd->hsdev; |
554 | sd->hid_sensor_hub_client_devs[ |
555 | sd->hid_sensor_client_cnt].pdata_size = |
556 | sizeof(*sd->hsdev); |
557 | hid_dbg(hdev, "Adding %s:%p\n", name, sd); |
558 | sd->hid_sensor_client_cnt++; |
559 | } |
560 | } |
561 | ret = mfd_add_devices(&hdev->dev, 0, sd->hid_sensor_hub_client_devs, |
562 | sd->hid_sensor_client_cnt, NULL, 0, NULL); |
563 | if (ret < 0) |
564 | goto err_free_names; |
565 | |
566 | return ret; |
567 | |
568 | err_free_names: |
569 | for (i = 0; i < sd->hid_sensor_client_cnt ; ++i) |
570 | kfree(sd->hid_sensor_hub_client_devs[i].name); |
571 | kfree(sd->hid_sensor_hub_client_devs); |
572 | err_close: |
573 | hid_hw_close(hdev); |
574 | err_stop_hw: |
575 | hid_hw_stop(hdev); |
576 | err_free: |
577 | kfree(sd->hsdev); |
578 | err_free_hub: |
579 | kfree(sd); |
580 | |
581 | return ret; |
582 | } |
583 | |
584 | static void sensor_hub_remove(struct hid_device *hdev) |
585 | { |
586 | struct sensor_hub_data *data = hid_get_drvdata(hdev); |
587 | unsigned long flags; |
588 | int i; |
589 | |
590 | hid_dbg(hdev, " hardware removed\n"); |
591 | hid_hw_close(hdev); |
592 | hid_hw_stop(hdev); |
593 | spin_lock_irqsave(&data->lock, flags); |
594 | if (data->pending.status) |
595 | complete(&data->pending.ready); |
596 | spin_unlock_irqrestore(&data->lock, flags); |
597 | mfd_remove_devices(&hdev->dev); |
598 | for (i = 0; i < data->hid_sensor_client_cnt ; ++i) |
599 | kfree(data->hid_sensor_hub_client_devs[i].name); |
600 | kfree(data->hid_sensor_hub_client_devs); |
601 | hid_set_drvdata(hdev, NULL); |
602 | mutex_destroy(&data->mutex); |
603 | kfree(data->hsdev); |
604 | kfree(data); |
605 | } |
606 | |
607 | static const struct hid_device_id sensor_hub_devices[] = { |
608 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, HID_ANY_ID, |
609 | HID_ANY_ID) }, |
610 | { } |
611 | }; |
612 | MODULE_DEVICE_TABLE(hid, sensor_hub_devices); |
613 | |
614 | static struct hid_driver sensor_hub_driver = { |
615 | .name = "hid-sensor-hub", |
616 | .id_table = sensor_hub_devices, |
617 | .probe = sensor_hub_probe, |
618 | .remove = sensor_hub_remove, |
619 | .raw_event = sensor_hub_raw_event, |
620 | #ifdef CONFIG_PM |
621 | .suspend = sensor_hub_suspend, |
622 | .resume = sensor_hub_resume, |
623 | .reset_resume = sensor_hub_reset_resume, |
624 | #endif |
625 | }; |
626 | module_hid_driver(sensor_hub_driver); |
627 | |
628 | MODULE_DESCRIPTION("HID Sensor Hub driver"); |
629 | MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>"); |
630 | MODULE_LICENSE("GPL"); |
631 |
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v2.6.34-rc5
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