xref: /openbmc/linux/drivers/hid/hid-core.c (revision 19e4ec525b37cdecbdb4f86edaae7f56a67339ee)
1dde5845aSJiri Kosina /*
2229695e5SJiri Kosina  *  HID support for Linux
3dde5845aSJiri Kosina  *
4dde5845aSJiri Kosina  *  Copyright (c) 1999 Andreas Gal
5dde5845aSJiri Kosina  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6dde5845aSJiri Kosina  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
76b1968d5SJiri Kosina  *  Copyright (c) 2006-2012 Jiri Kosina
8dde5845aSJiri Kosina  */
9dde5845aSJiri Kosina 
10dde5845aSJiri Kosina /*
11dde5845aSJiri Kosina  * This program is free software; you can redistribute it and/or modify it
12dde5845aSJiri Kosina  * under the terms of the GNU General Public License as published by the Free
13dde5845aSJiri Kosina  * Software Foundation; either version 2 of the License, or (at your option)
14dde5845aSJiri Kosina  * any later version.
15dde5845aSJiri Kosina  */
16dde5845aSJiri Kosina 
174291ee30SJoe Perches #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
184291ee30SJoe Perches 
19dde5845aSJiri Kosina #include <linux/module.h>
20dde5845aSJiri Kosina #include <linux/slab.h>
21dde5845aSJiri Kosina #include <linux/init.h>
22dde5845aSJiri Kosina #include <linux/kernel.h>
23dde5845aSJiri Kosina #include <linux/list.h>
24dde5845aSJiri Kosina #include <linux/mm.h>
25dde5845aSJiri Kosina #include <linux/spinlock.h>
26dde5845aSJiri Kosina #include <asm/unaligned.h>
27dde5845aSJiri Kosina #include <asm/byteorder.h>
28dde5845aSJiri Kosina #include <linux/input.h>
29dde5845aSJiri Kosina #include <linux/wait.h>
3047a80edbSJiri Kosina #include <linux/vmalloc.h>
31c4124c9bSJiri Kosina #include <linux/sched.h>
324ea54542SDavid Herrmann #include <linux/semaphore.h>
33dde5845aSJiri Kosina 
34dde5845aSJiri Kosina #include <linux/hid.h>
35dde5845aSJiri Kosina #include <linux/hiddev.h>
36c080d89aSJiri Kosina #include <linux/hid-debug.h>
3786166b7bSJiri Kosina #include <linux/hidraw.h>
38dde5845aSJiri Kosina 
395f22a799SJiri Slaby #include "hid-ids.h"
405f22a799SJiri Slaby 
41dde5845aSJiri Kosina /*
42dde5845aSJiri Kosina  * Version Information
43dde5845aSJiri Kosina  */
44dde5845aSJiri Kosina 
4553149801SJiri Kosina #define DRIVER_DESC "HID core driver"
46dde5845aSJiri Kosina #define DRIVER_LICENSE "GPL"
47dde5845aSJiri Kosina 
4858037eb9SJiri Kosina int hid_debug = 0;
49377e10fbSAnssi Hannula module_param_named(debug, hid_debug, int, 0600);
50cd667ce2SJiri Kosina MODULE_PARM_DESC(debug, "toggle HID debugging messages");
5158037eb9SJiri Kosina EXPORT_SYMBOL_GPL(hid_debug);
5258037eb9SJiri Kosina 
536b1968d5SJiri Kosina static int hid_ignore_special_drivers = 0;
546b1968d5SJiri Kosina module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600);
556b1968d5SJiri Kosina MODULE_PARM_DESC(debug, "Ignore any special drivers and handle all devices by generic driver");
566b1968d5SJiri Kosina 
57dde5845aSJiri Kosina /*
58dde5845aSJiri Kosina  * Register a new report for a device.
59dde5845aSJiri Kosina  */
60dde5845aSJiri Kosina 
6190a006abSMichael Poole struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
62dde5845aSJiri Kosina {
63dde5845aSJiri Kosina 	struct hid_report_enum *report_enum = device->report_enum + type;
64dde5845aSJiri Kosina 	struct hid_report *report;
65dde5845aSJiri Kosina 
6643622021SKees Cook 	if (id >= HID_MAX_IDS)
6743622021SKees Cook 		return NULL;
68dde5845aSJiri Kosina 	if (report_enum->report_id_hash[id])
69dde5845aSJiri Kosina 		return report_enum->report_id_hash[id];
70dde5845aSJiri Kosina 
71a3789a17SJoe Perches 	report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
72a3789a17SJoe Perches 	if (!report)
73dde5845aSJiri Kosina 		return NULL;
74dde5845aSJiri Kosina 
75dde5845aSJiri Kosina 	if (id != 0)
76dde5845aSJiri Kosina 		report_enum->numbered = 1;
77dde5845aSJiri Kosina 
78dde5845aSJiri Kosina 	report->id = id;
79dde5845aSJiri Kosina 	report->type = type;
80dde5845aSJiri Kosina 	report->size = 0;
81dde5845aSJiri Kosina 	report->device = device;
82dde5845aSJiri Kosina 	report_enum->report_id_hash[id] = report;
83dde5845aSJiri Kosina 
84dde5845aSJiri Kosina 	list_add_tail(&report->list, &report_enum->report_list);
85dde5845aSJiri Kosina 
86dde5845aSJiri Kosina 	return report;
87dde5845aSJiri Kosina }
8890a006abSMichael Poole EXPORT_SYMBOL_GPL(hid_register_report);
89dde5845aSJiri Kosina 
90dde5845aSJiri Kosina /*
91dde5845aSJiri Kosina  * Register a new field for this report.
92dde5845aSJiri Kosina  */
93dde5845aSJiri Kosina 
94dde5845aSJiri Kosina static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
95dde5845aSJiri Kosina {
96dde5845aSJiri Kosina 	struct hid_field *field;
97dde5845aSJiri Kosina 
98dde5845aSJiri Kosina 	if (report->maxfield == HID_MAX_FIELDS) {
998c3d52fcSJiri Kosina 		hid_err(report->device, "too many fields in report\n");
100dde5845aSJiri Kosina 		return NULL;
101dde5845aSJiri Kosina 	}
102dde5845aSJiri Kosina 
103a3789a17SJoe Perches 	field = kzalloc((sizeof(struct hid_field) +
104a3789a17SJoe Perches 			 usages * sizeof(struct hid_usage) +
105a3789a17SJoe Perches 			 values * sizeof(unsigned)), GFP_KERNEL);
106a3789a17SJoe Perches 	if (!field)
107a3789a17SJoe Perches 		return NULL;
108dde5845aSJiri Kosina 
109dde5845aSJiri Kosina 	field->index = report->maxfield++;
110dde5845aSJiri Kosina 	report->field[field->index] = field;
111dde5845aSJiri Kosina 	field->usage = (struct hid_usage *)(field + 1);
112282bfd4cSJiri Slaby 	field->value = (s32 *)(field->usage + usages);
113dde5845aSJiri Kosina 	field->report = report;
114dde5845aSJiri Kosina 
115dde5845aSJiri Kosina 	return field;
116dde5845aSJiri Kosina }
117dde5845aSJiri Kosina 
118dde5845aSJiri Kosina /*
119dde5845aSJiri Kosina  * Open a collection. The type/usage is pushed on the stack.
120dde5845aSJiri Kosina  */
121dde5845aSJiri Kosina 
122dde5845aSJiri Kosina static int open_collection(struct hid_parser *parser, unsigned type)
123dde5845aSJiri Kosina {
124dde5845aSJiri Kosina 	struct hid_collection *collection;
125dde5845aSJiri Kosina 	unsigned usage;
126dde5845aSJiri Kosina 
127dde5845aSJiri Kosina 	usage = parser->local.usage[0];
128dde5845aSJiri Kosina 
129dde5845aSJiri Kosina 	if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
1308c3d52fcSJiri Kosina 		hid_err(parser->device, "collection stack overflow\n");
131a6fbaacfSSachin Kamat 		return -EINVAL;
132dde5845aSJiri Kosina 	}
133dde5845aSJiri Kosina 
134dde5845aSJiri Kosina 	if (parser->device->maxcollection == parser->device->collection_size) {
135dde5845aSJiri Kosina 		collection = kmalloc(sizeof(struct hid_collection) *
136dde5845aSJiri Kosina 				parser->device->collection_size * 2, GFP_KERNEL);
137dde5845aSJiri Kosina 		if (collection == NULL) {
1388c3d52fcSJiri Kosina 			hid_err(parser->device, "failed to reallocate collection array\n");
139a6fbaacfSSachin Kamat 			return -ENOMEM;
140dde5845aSJiri Kosina 		}
141dde5845aSJiri Kosina 		memcpy(collection, parser->device->collection,
142dde5845aSJiri Kosina 			sizeof(struct hid_collection) *
143dde5845aSJiri Kosina 			parser->device->collection_size);
144dde5845aSJiri Kosina 		memset(collection + parser->device->collection_size, 0,
145dde5845aSJiri Kosina 			sizeof(struct hid_collection) *
146dde5845aSJiri Kosina 			parser->device->collection_size);
147dde5845aSJiri Kosina 		kfree(parser->device->collection);
148dde5845aSJiri Kosina 		parser->device->collection = collection;
149dde5845aSJiri Kosina 		parser->device->collection_size *= 2;
150dde5845aSJiri Kosina 	}
151dde5845aSJiri Kosina 
152dde5845aSJiri Kosina 	parser->collection_stack[parser->collection_stack_ptr++] =
153dde5845aSJiri Kosina 		parser->device->maxcollection;
154dde5845aSJiri Kosina 
155dde5845aSJiri Kosina 	collection = parser->device->collection +
156dde5845aSJiri Kosina 		parser->device->maxcollection++;
157dde5845aSJiri Kosina 	collection->type = type;
158dde5845aSJiri Kosina 	collection->usage = usage;
159dde5845aSJiri Kosina 	collection->level = parser->collection_stack_ptr - 1;
160dde5845aSJiri Kosina 
161dde5845aSJiri Kosina 	if (type == HID_COLLECTION_APPLICATION)
162dde5845aSJiri Kosina 		parser->device->maxapplication++;
163dde5845aSJiri Kosina 
164dde5845aSJiri Kosina 	return 0;
165dde5845aSJiri Kosina }
166dde5845aSJiri Kosina 
167dde5845aSJiri Kosina /*
168dde5845aSJiri Kosina  * Close a collection.
169dde5845aSJiri Kosina  */
170dde5845aSJiri Kosina 
171dde5845aSJiri Kosina static int close_collection(struct hid_parser *parser)
172dde5845aSJiri Kosina {
173dde5845aSJiri Kosina 	if (!parser->collection_stack_ptr) {
1748c3d52fcSJiri Kosina 		hid_err(parser->device, "collection stack underflow\n");
175a6fbaacfSSachin Kamat 		return -EINVAL;
176dde5845aSJiri Kosina 	}
177dde5845aSJiri Kosina 	parser->collection_stack_ptr--;
178dde5845aSJiri Kosina 	return 0;
179dde5845aSJiri Kosina }
180dde5845aSJiri Kosina 
181dde5845aSJiri Kosina /*
182dde5845aSJiri Kosina  * Climb up the stack, search for the specified collection type
183dde5845aSJiri Kosina  * and return the usage.
184dde5845aSJiri Kosina  */
185dde5845aSJiri Kosina 
186dde5845aSJiri Kosina static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
187dde5845aSJiri Kosina {
188504499f2SJoe Perches 	struct hid_collection *collection = parser->device->collection;
189dde5845aSJiri Kosina 	int n;
190504499f2SJoe Perches 
191504499f2SJoe Perches 	for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
192504499f2SJoe Perches 		unsigned index = parser->collection_stack[n];
193504499f2SJoe Perches 		if (collection[index].type == type)
194504499f2SJoe Perches 			return collection[index].usage;
195504499f2SJoe Perches 	}
196dde5845aSJiri Kosina 	return 0; /* we know nothing about this usage type */
197dde5845aSJiri Kosina }
198dde5845aSJiri Kosina 
199dde5845aSJiri Kosina /*
200dde5845aSJiri Kosina  * Add a usage to the temporary parser table.
201dde5845aSJiri Kosina  */
202dde5845aSJiri Kosina 
203dde5845aSJiri Kosina static int hid_add_usage(struct hid_parser *parser, unsigned usage)
204dde5845aSJiri Kosina {
205dde5845aSJiri Kosina 	if (parser->local.usage_index >= HID_MAX_USAGES) {
2068c3d52fcSJiri Kosina 		hid_err(parser->device, "usage index exceeded\n");
207dde5845aSJiri Kosina 		return -1;
208dde5845aSJiri Kosina 	}
209dde5845aSJiri Kosina 	parser->local.usage[parser->local.usage_index] = usage;
210dde5845aSJiri Kosina 	parser->local.collection_index[parser->local.usage_index] =
211dde5845aSJiri Kosina 		parser->collection_stack_ptr ?
212dde5845aSJiri Kosina 		parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
213dde5845aSJiri Kosina 	parser->local.usage_index++;
214dde5845aSJiri Kosina 	return 0;
215dde5845aSJiri Kosina }
216dde5845aSJiri Kosina 
217dde5845aSJiri Kosina /*
218dde5845aSJiri Kosina  * Register a new field for this report.
219dde5845aSJiri Kosina  */
220dde5845aSJiri Kosina 
221dde5845aSJiri Kosina static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
222dde5845aSJiri Kosina {
223dde5845aSJiri Kosina 	struct hid_report *report;
224dde5845aSJiri Kosina 	struct hid_field *field;
225cc6b54aaSBenjamin Tissoires 	unsigned usages;
226dde5845aSJiri Kosina 	unsigned offset;
227cc6b54aaSBenjamin Tissoires 	unsigned i;
228dde5845aSJiri Kosina 
229a3789a17SJoe Perches 	report = hid_register_report(parser->device, report_type, parser->global.report_id);
230a3789a17SJoe Perches 	if (!report) {
2318c3d52fcSJiri Kosina 		hid_err(parser->device, "hid_register_report failed\n");
232dde5845aSJiri Kosina 		return -1;
233dde5845aSJiri Kosina 	}
234dde5845aSJiri Kosina 
235bb2e1976SJiri Kosina 	/* Handle both signed and unsigned cases properly */
2360cd516c2Ssrinivas pandruvada 	if ((parser->global.logical_minimum < 0 &&
2370cd516c2Ssrinivas pandruvada 		parser->global.logical_maximum <
2380cd516c2Ssrinivas pandruvada 		parser->global.logical_minimum) ||
2390cd516c2Ssrinivas pandruvada 		(parser->global.logical_minimum >= 0 &&
2400cd516c2Ssrinivas pandruvada 		(__u32)parser->global.logical_maximum <
2410cd516c2Ssrinivas pandruvada 		(__u32)parser->global.logical_minimum)) {
2420cd516c2Ssrinivas pandruvada 		dbg_hid("logical range invalid 0x%x 0x%x\n",
2430cd516c2Ssrinivas pandruvada 			parser->global.logical_minimum,
2440cd516c2Ssrinivas pandruvada 			parser->global.logical_maximum);
245dde5845aSJiri Kosina 		return -1;
246dde5845aSJiri Kosina 	}
247dde5845aSJiri Kosina 
248dde5845aSJiri Kosina 	offset = report->size;
249dde5845aSJiri Kosina 	report->size += parser->global.report_size * parser->global.report_count;
250dde5845aSJiri Kosina 
251dde5845aSJiri Kosina 	if (!parser->local.usage_index) /* Ignore padding fields */
252dde5845aSJiri Kosina 		return 0;
253dde5845aSJiri Kosina 
254cc6b54aaSBenjamin Tissoires 	usages = max_t(unsigned, parser->local.usage_index,
255cc6b54aaSBenjamin Tissoires 				 parser->global.report_count);
256dde5845aSJiri Kosina 
257a3789a17SJoe Perches 	field = hid_register_field(report, usages, parser->global.report_count);
258a3789a17SJoe Perches 	if (!field)
259dde5845aSJiri Kosina 		return 0;
260dde5845aSJiri Kosina 
261dde5845aSJiri Kosina 	field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
262dde5845aSJiri Kosina 	field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
263dde5845aSJiri Kosina 	field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
264dde5845aSJiri Kosina 
265dde5845aSJiri Kosina 	for (i = 0; i < usages; i++) {
266cc6b54aaSBenjamin Tissoires 		unsigned j = i;
267dde5845aSJiri Kosina 		/* Duplicate the last usage we parsed if we have excess values */
268dde5845aSJiri Kosina 		if (i >= parser->local.usage_index)
269dde5845aSJiri Kosina 			j = parser->local.usage_index - 1;
270dde5845aSJiri Kosina 		field->usage[i].hid = parser->local.usage[j];
271dde5845aSJiri Kosina 		field->usage[i].collection_index =
272dde5845aSJiri Kosina 			parser->local.collection_index[j];
273cc6b54aaSBenjamin Tissoires 		field->usage[i].usage_index = i;
274dde5845aSJiri Kosina 	}
275dde5845aSJiri Kosina 
276dde5845aSJiri Kosina 	field->maxusage = usages;
277dde5845aSJiri Kosina 	field->flags = flags;
278dde5845aSJiri Kosina 	field->report_offset = offset;
279dde5845aSJiri Kosina 	field->report_type = report_type;
280dde5845aSJiri Kosina 	field->report_size = parser->global.report_size;
281dde5845aSJiri Kosina 	field->report_count = parser->global.report_count;
282dde5845aSJiri Kosina 	field->logical_minimum = parser->global.logical_minimum;
283dde5845aSJiri Kosina 	field->logical_maximum = parser->global.logical_maximum;
284dde5845aSJiri Kosina 	field->physical_minimum = parser->global.physical_minimum;
285dde5845aSJiri Kosina 	field->physical_maximum = parser->global.physical_maximum;
286dde5845aSJiri Kosina 	field->unit_exponent = parser->global.unit_exponent;
287dde5845aSJiri Kosina 	field->unit = parser->global.unit;
288dde5845aSJiri Kosina 
289dde5845aSJiri Kosina 	return 0;
290dde5845aSJiri Kosina }
291dde5845aSJiri Kosina 
292dde5845aSJiri Kosina /*
293dde5845aSJiri Kosina  * Read data value from item.
294dde5845aSJiri Kosina  */
295dde5845aSJiri Kosina 
296dde5845aSJiri Kosina static u32 item_udata(struct hid_item *item)
297dde5845aSJiri Kosina {
298dde5845aSJiri Kosina 	switch (item->size) {
299dde5845aSJiri Kosina 	case 1: return item->data.u8;
300dde5845aSJiri Kosina 	case 2: return item->data.u16;
301dde5845aSJiri Kosina 	case 4: return item->data.u32;
302dde5845aSJiri Kosina 	}
303dde5845aSJiri Kosina 	return 0;
304dde5845aSJiri Kosina }
305dde5845aSJiri Kosina 
306dde5845aSJiri Kosina static s32 item_sdata(struct hid_item *item)
307dde5845aSJiri Kosina {
308dde5845aSJiri Kosina 	switch (item->size) {
309dde5845aSJiri Kosina 	case 1: return item->data.s8;
310dde5845aSJiri Kosina 	case 2: return item->data.s16;
311dde5845aSJiri Kosina 	case 4: return item->data.s32;
312dde5845aSJiri Kosina 	}
313dde5845aSJiri Kosina 	return 0;
314dde5845aSJiri Kosina }
315dde5845aSJiri Kosina 
316dde5845aSJiri Kosina /*
317dde5845aSJiri Kosina  * Process a global item.
318dde5845aSJiri Kosina  */
319dde5845aSJiri Kosina 
320dde5845aSJiri Kosina static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
321dde5845aSJiri Kosina {
322ad0e669bSNikolai Kondrashov 	__s32 raw_value;
323dde5845aSJiri Kosina 	switch (item->tag) {
324dde5845aSJiri Kosina 	case HID_GLOBAL_ITEM_TAG_PUSH:
325dde5845aSJiri Kosina 
326dde5845aSJiri Kosina 		if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
3278c3d52fcSJiri Kosina 			hid_err(parser->device, "global environment stack overflow\n");
328dde5845aSJiri Kosina 			return -1;
329dde5845aSJiri Kosina 		}
330dde5845aSJiri Kosina 
331dde5845aSJiri Kosina 		memcpy(parser->global_stack + parser->global_stack_ptr++,
332dde5845aSJiri Kosina 			&parser->global, sizeof(struct hid_global));
333dde5845aSJiri Kosina 		return 0;
334dde5845aSJiri Kosina 
335dde5845aSJiri Kosina 	case HID_GLOBAL_ITEM_TAG_POP:
336dde5845aSJiri Kosina 
337dde5845aSJiri Kosina 		if (!parser->global_stack_ptr) {
3388c3d52fcSJiri Kosina 			hid_err(parser->device, "global environment stack underflow\n");
339dde5845aSJiri Kosina 			return -1;
340dde5845aSJiri Kosina 		}
341dde5845aSJiri Kosina 
342880d29f1SJiri Slaby 		memcpy(&parser->global, parser->global_stack +
343880d29f1SJiri Slaby 			--parser->global_stack_ptr, sizeof(struct hid_global));
344dde5845aSJiri Kosina 		return 0;
345dde5845aSJiri Kosina 
346dde5845aSJiri Kosina 	case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
347dde5845aSJiri Kosina 		parser->global.usage_page = item_udata(item);
348dde5845aSJiri Kosina 		return 0;
349dde5845aSJiri Kosina 
350dde5845aSJiri Kosina 	case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
351dde5845aSJiri Kosina 		parser->global.logical_minimum = item_sdata(item);
352dde5845aSJiri Kosina 		return 0;
353dde5845aSJiri Kosina 
354dde5845aSJiri Kosina 	case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
355dde5845aSJiri Kosina 		if (parser->global.logical_minimum < 0)
356dde5845aSJiri Kosina 			parser->global.logical_maximum = item_sdata(item);
357dde5845aSJiri Kosina 		else
358dde5845aSJiri Kosina 			parser->global.logical_maximum = item_udata(item);
359dde5845aSJiri Kosina 		return 0;
360dde5845aSJiri Kosina 
361dde5845aSJiri Kosina 	case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
362dde5845aSJiri Kosina 		parser->global.physical_minimum = item_sdata(item);
363dde5845aSJiri Kosina 		return 0;
364dde5845aSJiri Kosina 
365dde5845aSJiri Kosina 	case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
366dde5845aSJiri Kosina 		if (parser->global.physical_minimum < 0)
367dde5845aSJiri Kosina 			parser->global.physical_maximum = item_sdata(item);
368dde5845aSJiri Kosina 		else
369dde5845aSJiri Kosina 			parser->global.physical_maximum = item_udata(item);
370dde5845aSJiri Kosina 		return 0;
371dde5845aSJiri Kosina 
372dde5845aSJiri Kosina 	case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
373ad0e669bSNikolai Kondrashov 		/* Many devices provide unit exponent as a two's complement
374ad0e669bSNikolai Kondrashov 		 * nibble due to the common misunderstanding of HID
375ad0e669bSNikolai Kondrashov 		 * specification 1.11, 6.2.2.7 Global Items. Attempt to handle
376ad0e669bSNikolai Kondrashov 		 * both this and the standard encoding. */
377ad0e669bSNikolai Kondrashov 		raw_value = item_sdata(item);
37877463838SBenjamin Tissoires 		if (!(raw_value & 0xfffffff0))
37977463838SBenjamin Tissoires 			parser->global.unit_exponent = hid_snto32(raw_value, 4);
38077463838SBenjamin Tissoires 		else
38177463838SBenjamin Tissoires 			parser->global.unit_exponent = raw_value;
382dde5845aSJiri Kosina 		return 0;
383dde5845aSJiri Kosina 
384dde5845aSJiri Kosina 	case HID_GLOBAL_ITEM_TAG_UNIT:
385dde5845aSJiri Kosina 		parser->global.unit = item_udata(item);
386dde5845aSJiri Kosina 		return 0;
387dde5845aSJiri Kosina 
388dde5845aSJiri Kosina 	case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
389880d29f1SJiri Slaby 		parser->global.report_size = item_udata(item);
39023408f95SMarek Vasut 		if (parser->global.report_size > 128) {
3918c3d52fcSJiri Kosina 			hid_err(parser->device, "invalid report_size %d\n",
392880d29f1SJiri Slaby 					parser->global.report_size);
393dde5845aSJiri Kosina 			return -1;
394dde5845aSJiri Kosina 		}
395dde5845aSJiri Kosina 		return 0;
396dde5845aSJiri Kosina 
397dde5845aSJiri Kosina 	case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
398880d29f1SJiri Slaby 		parser->global.report_count = item_udata(item);
399880d29f1SJiri Slaby 		if (parser->global.report_count > HID_MAX_USAGES) {
4008c3d52fcSJiri Kosina 			hid_err(parser->device, "invalid report_count %d\n",
401880d29f1SJiri Slaby 					parser->global.report_count);
402dde5845aSJiri Kosina 			return -1;
403dde5845aSJiri Kosina 		}
404dde5845aSJiri Kosina 		return 0;
405dde5845aSJiri Kosina 
406dde5845aSJiri Kosina 	case HID_GLOBAL_ITEM_TAG_REPORT_ID:
407880d29f1SJiri Slaby 		parser->global.report_id = item_udata(item);
40843622021SKees Cook 		if (parser->global.report_id == 0 ||
40943622021SKees Cook 		    parser->global.report_id >= HID_MAX_IDS) {
41043622021SKees Cook 			hid_err(parser->device, "report_id %u is invalid\n",
41143622021SKees Cook 				parser->global.report_id);
412dde5845aSJiri Kosina 			return -1;
413dde5845aSJiri Kosina 		}
414dde5845aSJiri Kosina 		return 0;
415dde5845aSJiri Kosina 
416dde5845aSJiri Kosina 	default:
4178c3d52fcSJiri Kosina 		hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
418dde5845aSJiri Kosina 		return -1;
419dde5845aSJiri Kosina 	}
420dde5845aSJiri Kosina }
421dde5845aSJiri Kosina 
422dde5845aSJiri Kosina /*
423dde5845aSJiri Kosina  * Process a local item.
424dde5845aSJiri Kosina  */
425dde5845aSJiri Kosina 
426dde5845aSJiri Kosina static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
427dde5845aSJiri Kosina {
428dde5845aSJiri Kosina 	__u32 data;
429dde5845aSJiri Kosina 	unsigned n;
430dde5845aSJiri Kosina 
431dde5845aSJiri Kosina 	data = item_udata(item);
432dde5845aSJiri Kosina 
433dde5845aSJiri Kosina 	switch (item->tag) {
434dde5845aSJiri Kosina 	case HID_LOCAL_ITEM_TAG_DELIMITER:
435dde5845aSJiri Kosina 
436dde5845aSJiri Kosina 		if (data) {
437dde5845aSJiri Kosina 			/*
438dde5845aSJiri Kosina 			 * We treat items before the first delimiter
439dde5845aSJiri Kosina 			 * as global to all usage sets (branch 0).
440dde5845aSJiri Kosina 			 * In the moment we process only these global
441dde5845aSJiri Kosina 			 * items and the first delimiter set.
442dde5845aSJiri Kosina 			 */
443dde5845aSJiri Kosina 			if (parser->local.delimiter_depth != 0) {
4448c3d52fcSJiri Kosina 				hid_err(parser->device, "nested delimiters\n");
445dde5845aSJiri Kosina 				return -1;
446dde5845aSJiri Kosina 			}
447dde5845aSJiri Kosina 			parser->local.delimiter_depth++;
448dde5845aSJiri Kosina 			parser->local.delimiter_branch++;
449dde5845aSJiri Kosina 		} else {
450dde5845aSJiri Kosina 			if (parser->local.delimiter_depth < 1) {
4518c3d52fcSJiri Kosina 				hid_err(parser->device, "bogus close delimiter\n");
452dde5845aSJiri Kosina 				return -1;
453dde5845aSJiri Kosina 			}
454dde5845aSJiri Kosina 			parser->local.delimiter_depth--;
455dde5845aSJiri Kosina 		}
45638ead6efSPaul Chavent 		return 0;
457dde5845aSJiri Kosina 
458dde5845aSJiri Kosina 	case HID_LOCAL_ITEM_TAG_USAGE:
459dde5845aSJiri Kosina 
460dde5845aSJiri Kosina 		if (parser->local.delimiter_branch > 1) {
46158037eb9SJiri Kosina 			dbg_hid("alternative usage ignored\n");
462dde5845aSJiri Kosina 			return 0;
463dde5845aSJiri Kosina 		}
464dde5845aSJiri Kosina 
465dde5845aSJiri Kosina 		if (item->size <= 2)
466dde5845aSJiri Kosina 			data = (parser->global.usage_page << 16) + data;
467dde5845aSJiri Kosina 
468dde5845aSJiri Kosina 		return hid_add_usage(parser, data);
469dde5845aSJiri Kosina 
470dde5845aSJiri Kosina 	case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
471dde5845aSJiri Kosina 
472dde5845aSJiri Kosina 		if (parser->local.delimiter_branch > 1) {
47358037eb9SJiri Kosina 			dbg_hid("alternative usage ignored\n");
474dde5845aSJiri Kosina 			return 0;
475dde5845aSJiri Kosina 		}
476dde5845aSJiri Kosina 
477dde5845aSJiri Kosina 		if (item->size <= 2)
478dde5845aSJiri Kosina 			data = (parser->global.usage_page << 16) + data;
479dde5845aSJiri Kosina 
480dde5845aSJiri Kosina 		parser->local.usage_minimum = data;
481dde5845aSJiri Kosina 		return 0;
482dde5845aSJiri Kosina 
483dde5845aSJiri Kosina 	case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
484dde5845aSJiri Kosina 
485dde5845aSJiri Kosina 		if (parser->local.delimiter_branch > 1) {
48658037eb9SJiri Kosina 			dbg_hid("alternative usage ignored\n");
487dde5845aSJiri Kosina 			return 0;
488dde5845aSJiri Kosina 		}
489dde5845aSJiri Kosina 
490dde5845aSJiri Kosina 		if (item->size <= 2)
491dde5845aSJiri Kosina 			data = (parser->global.usage_page << 16) + data;
492dde5845aSJiri Kosina 
493dde5845aSJiri Kosina 		for (n = parser->local.usage_minimum; n <= data; n++)
494dde5845aSJiri Kosina 			if (hid_add_usage(parser, n)) {
49558037eb9SJiri Kosina 				dbg_hid("hid_add_usage failed\n");
496dde5845aSJiri Kosina 				return -1;
497dde5845aSJiri Kosina 			}
498dde5845aSJiri Kosina 		return 0;
499dde5845aSJiri Kosina 
500dde5845aSJiri Kosina 	default:
501dde5845aSJiri Kosina 
50258037eb9SJiri Kosina 		dbg_hid("unknown local item tag 0x%x\n", item->tag);
503dde5845aSJiri Kosina 		return 0;
504dde5845aSJiri Kosina 	}
505dde5845aSJiri Kosina 	return 0;
506dde5845aSJiri Kosina }
507dde5845aSJiri Kosina 
508dde5845aSJiri Kosina /*
509dde5845aSJiri Kosina  * Process a main item.
510dde5845aSJiri Kosina  */
511dde5845aSJiri Kosina 
512dde5845aSJiri Kosina static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
513dde5845aSJiri Kosina {
514dde5845aSJiri Kosina 	__u32 data;
515dde5845aSJiri Kosina 	int ret;
516dde5845aSJiri Kosina 
517dde5845aSJiri Kosina 	data = item_udata(item);
518dde5845aSJiri Kosina 
519dde5845aSJiri Kosina 	switch (item->tag) {
520dde5845aSJiri Kosina 	case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
521dde5845aSJiri Kosina 		ret = open_collection(parser, data & 0xff);
522dde5845aSJiri Kosina 		break;
523dde5845aSJiri Kosina 	case HID_MAIN_ITEM_TAG_END_COLLECTION:
524dde5845aSJiri Kosina 		ret = close_collection(parser);
525dde5845aSJiri Kosina 		break;
526dde5845aSJiri Kosina 	case HID_MAIN_ITEM_TAG_INPUT:
527dde5845aSJiri Kosina 		ret = hid_add_field(parser, HID_INPUT_REPORT, data);
528dde5845aSJiri Kosina 		break;
529dde5845aSJiri Kosina 	case HID_MAIN_ITEM_TAG_OUTPUT:
530dde5845aSJiri Kosina 		ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
531dde5845aSJiri Kosina 		break;
532dde5845aSJiri Kosina 	case HID_MAIN_ITEM_TAG_FEATURE:
533dde5845aSJiri Kosina 		ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
534dde5845aSJiri Kosina 		break;
535dde5845aSJiri Kosina 	default:
5368c3d52fcSJiri Kosina 		hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
537dde5845aSJiri Kosina 		ret = 0;
538dde5845aSJiri Kosina 	}
539dde5845aSJiri Kosina 
540dde5845aSJiri Kosina 	memset(&parser->local, 0, sizeof(parser->local));	/* Reset the local parser environment */
541dde5845aSJiri Kosina 
542dde5845aSJiri Kosina 	return ret;
543dde5845aSJiri Kosina }
544dde5845aSJiri Kosina 
545dde5845aSJiri Kosina /*
546dde5845aSJiri Kosina  * Process a reserved item.
547dde5845aSJiri Kosina  */
548dde5845aSJiri Kosina 
549dde5845aSJiri Kosina static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
550dde5845aSJiri Kosina {
55158037eb9SJiri Kosina 	dbg_hid("reserved item type, tag 0x%x\n", item->tag);
552dde5845aSJiri Kosina 	return 0;
553dde5845aSJiri Kosina }
554dde5845aSJiri Kosina 
555dde5845aSJiri Kosina /*
556dde5845aSJiri Kosina  * Free a report and all registered fields. The field->usage and
557dde5845aSJiri Kosina  * field->value table's are allocated behind the field, so we need
558dde5845aSJiri Kosina  * only to free(field) itself.
559dde5845aSJiri Kosina  */
560dde5845aSJiri Kosina 
561dde5845aSJiri Kosina static void hid_free_report(struct hid_report *report)
562dde5845aSJiri Kosina {
563dde5845aSJiri Kosina 	unsigned n;
564dde5845aSJiri Kosina 
565dde5845aSJiri Kosina 	for (n = 0; n < report->maxfield; n++)
566dde5845aSJiri Kosina 		kfree(report->field[n]);
567dde5845aSJiri Kosina 	kfree(report);
568dde5845aSJiri Kosina }
569dde5845aSJiri Kosina 
570dde5845aSJiri Kosina /*
571a7197c2eSHenrik Rydberg  * Close report. This function returns the device
572a7197c2eSHenrik Rydberg  * state to the point prior to hid_open_report().
573dde5845aSJiri Kosina  */
574a7197c2eSHenrik Rydberg static void hid_close_report(struct hid_device *device)
575dde5845aSJiri Kosina {
576dde5845aSJiri Kosina 	unsigned i, j;
577dde5845aSJiri Kosina 
578dde5845aSJiri Kosina 	for (i = 0; i < HID_REPORT_TYPES; i++) {
579dde5845aSJiri Kosina 		struct hid_report_enum *report_enum = device->report_enum + i;
580dde5845aSJiri Kosina 
58143622021SKees Cook 		for (j = 0; j < HID_MAX_IDS; j++) {
582dde5845aSJiri Kosina 			struct hid_report *report = report_enum->report_id_hash[j];
583dde5845aSJiri Kosina 			if (report)
584dde5845aSJiri Kosina 				hid_free_report(report);
585dde5845aSJiri Kosina 		}
586a7197c2eSHenrik Rydberg 		memset(report_enum, 0, sizeof(*report_enum));
587a7197c2eSHenrik Rydberg 		INIT_LIST_HEAD(&report_enum->report_list);
588dde5845aSJiri Kosina 	}
589dde5845aSJiri Kosina 
590dde5845aSJiri Kosina 	kfree(device->rdesc);
591a7197c2eSHenrik Rydberg 	device->rdesc = NULL;
592a7197c2eSHenrik Rydberg 	device->rsize = 0;
593a7197c2eSHenrik Rydberg 
594767fe787SJiri Kosina 	kfree(device->collection);
595a7197c2eSHenrik Rydberg 	device->collection = NULL;
596a7197c2eSHenrik Rydberg 	device->collection_size = 0;
597a7197c2eSHenrik Rydberg 	device->maxcollection = 0;
598a7197c2eSHenrik Rydberg 	device->maxapplication = 0;
599a7197c2eSHenrik Rydberg 
600a7197c2eSHenrik Rydberg 	device->status &= ~HID_STAT_PARSED;
601a7197c2eSHenrik Rydberg }
602a7197c2eSHenrik Rydberg 
603a7197c2eSHenrik Rydberg /*
604a7197c2eSHenrik Rydberg  * Free a device structure, all reports, and all fields.
605a7197c2eSHenrik Rydberg  */
606a7197c2eSHenrik Rydberg 
607a7197c2eSHenrik Rydberg static void hid_device_release(struct device *dev)
608a7197c2eSHenrik Rydberg {
609a7197c2eSHenrik Rydberg 	struct hid_device *hid = container_of(dev, struct hid_device, dev);
610a7197c2eSHenrik Rydberg 
611a7197c2eSHenrik Rydberg 	hid_close_report(hid);
612a7197c2eSHenrik Rydberg 	kfree(hid->dev_rdesc);
613a7197c2eSHenrik Rydberg 	kfree(hid);
614dde5845aSJiri Kosina }
615dde5845aSJiri Kosina 
616dde5845aSJiri Kosina /*
617dde5845aSJiri Kosina  * Fetch a report description item from the data stream. We support long
618dde5845aSJiri Kosina  * items, though they are not used yet.
619dde5845aSJiri Kosina  */
620dde5845aSJiri Kosina 
621dde5845aSJiri Kosina static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
622dde5845aSJiri Kosina {
623dde5845aSJiri Kosina 	u8 b;
624dde5845aSJiri Kosina 
625dde5845aSJiri Kosina 	if ((end - start) <= 0)
626dde5845aSJiri Kosina 		return NULL;
627dde5845aSJiri Kosina 
628dde5845aSJiri Kosina 	b = *start++;
629dde5845aSJiri Kosina 
630dde5845aSJiri Kosina 	item->type = (b >> 2) & 3;
631dde5845aSJiri Kosina 	item->tag  = (b >> 4) & 15;
632dde5845aSJiri Kosina 
633dde5845aSJiri Kosina 	if (item->tag == HID_ITEM_TAG_LONG) {
634dde5845aSJiri Kosina 
635dde5845aSJiri Kosina 		item->format = HID_ITEM_FORMAT_LONG;
636dde5845aSJiri Kosina 
637dde5845aSJiri Kosina 		if ((end - start) < 2)
638dde5845aSJiri Kosina 			return NULL;
639dde5845aSJiri Kosina 
640dde5845aSJiri Kosina 		item->size = *start++;
641dde5845aSJiri Kosina 		item->tag  = *start++;
642dde5845aSJiri Kosina 
643dde5845aSJiri Kosina 		if ((end - start) < item->size)
644dde5845aSJiri Kosina 			return NULL;
645dde5845aSJiri Kosina 
646dde5845aSJiri Kosina 		item->data.longdata = start;
647dde5845aSJiri Kosina 		start += item->size;
648dde5845aSJiri Kosina 		return start;
649dde5845aSJiri Kosina 	}
650dde5845aSJiri Kosina 
651dde5845aSJiri Kosina 	item->format = HID_ITEM_FORMAT_SHORT;
652dde5845aSJiri Kosina 	item->size = b & 3;
653dde5845aSJiri Kosina 
654dde5845aSJiri Kosina 	switch (item->size) {
655dde5845aSJiri Kosina 	case 0:
656dde5845aSJiri Kosina 		return start;
657dde5845aSJiri Kosina 
658dde5845aSJiri Kosina 	case 1:
659dde5845aSJiri Kosina 		if ((end - start) < 1)
660dde5845aSJiri Kosina 			return NULL;
661dde5845aSJiri Kosina 		item->data.u8 = *start++;
662dde5845aSJiri Kosina 		return start;
663dde5845aSJiri Kosina 
664dde5845aSJiri Kosina 	case 2:
665dde5845aSJiri Kosina 		if ((end - start) < 2)
666dde5845aSJiri Kosina 			return NULL;
667c105068fSHarvey Harrison 		item->data.u16 = get_unaligned_le16(start);
668dde5845aSJiri Kosina 		start = (__u8 *)((__le16 *)start + 1);
669dde5845aSJiri Kosina 		return start;
670dde5845aSJiri Kosina 
671dde5845aSJiri Kosina 	case 3:
672dde5845aSJiri Kosina 		item->size++;
673dde5845aSJiri Kosina 		if ((end - start) < 4)
674dde5845aSJiri Kosina 			return NULL;
675c105068fSHarvey Harrison 		item->data.u32 = get_unaligned_le32(start);
676dde5845aSJiri Kosina 		start = (__u8 *)((__le32 *)start + 1);
677dde5845aSJiri Kosina 		return start;
678dde5845aSJiri Kosina 	}
679dde5845aSJiri Kosina 
680dde5845aSJiri Kosina 	return NULL;
681dde5845aSJiri Kosina }
682dde5845aSJiri Kosina 
6833dc8fc08SBenjamin Tissoires static void hid_scan_input_usage(struct hid_parser *parser, u32 usage)
684734c6609SHenrik Rydberg {
6853dc8fc08SBenjamin Tissoires 	struct hid_device *hid = parser->device;
6863dc8fc08SBenjamin Tissoires 
6874fa3a583SHenrik Rydberg 	if (usage == HID_DG_CONTACTID)
6884fa3a583SHenrik Rydberg 		hid->group = HID_GROUP_MULTITOUCH;
689734c6609SHenrik Rydberg }
690734c6609SHenrik Rydberg 
691f961bd35SBenjamin Tissoires static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage)
692f961bd35SBenjamin Tissoires {
693f961bd35SBenjamin Tissoires 	if (usage == 0xff0000c5 && parser->global.report_count == 256 &&
694f961bd35SBenjamin Tissoires 	    parser->global.report_size == 8)
695f961bd35SBenjamin Tissoires 		parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8;
696f961bd35SBenjamin Tissoires }
697f961bd35SBenjamin Tissoires 
6983dc8fc08SBenjamin Tissoires static void hid_scan_collection(struct hid_parser *parser, unsigned type)
6993dc8fc08SBenjamin Tissoires {
7003dc8fc08SBenjamin Tissoires 	struct hid_device *hid = parser->device;
7013dc8fc08SBenjamin Tissoires 
7023dc8fc08SBenjamin Tissoires 	if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
7033dc8fc08SBenjamin Tissoires 	    type == HID_COLLECTION_PHYSICAL)
7043dc8fc08SBenjamin Tissoires 		hid->group = HID_GROUP_SENSOR_HUB;
7053dc8fc08SBenjamin Tissoires }
7063dc8fc08SBenjamin Tissoires 
7073dc8fc08SBenjamin Tissoires static int hid_scan_main(struct hid_parser *parser, struct hid_item *item)
7083dc8fc08SBenjamin Tissoires {
7093dc8fc08SBenjamin Tissoires 	__u32 data;
7103dc8fc08SBenjamin Tissoires 	int i;
7113dc8fc08SBenjamin Tissoires 
7123dc8fc08SBenjamin Tissoires 	data = item_udata(item);
7133dc8fc08SBenjamin Tissoires 
7143dc8fc08SBenjamin Tissoires 	switch (item->tag) {
7153dc8fc08SBenjamin Tissoires 	case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
7163dc8fc08SBenjamin Tissoires 		hid_scan_collection(parser, data & 0xff);
7173dc8fc08SBenjamin Tissoires 		break;
7183dc8fc08SBenjamin Tissoires 	case HID_MAIN_ITEM_TAG_END_COLLECTION:
7193dc8fc08SBenjamin Tissoires 		break;
7203dc8fc08SBenjamin Tissoires 	case HID_MAIN_ITEM_TAG_INPUT:
721e24d0d39SBenjamin Tissoires 		/* ignore constant inputs, they will be ignored by hid-input */
722e24d0d39SBenjamin Tissoires 		if (data & HID_MAIN_ITEM_CONSTANT)
723e24d0d39SBenjamin Tissoires 			break;
7243dc8fc08SBenjamin Tissoires 		for (i = 0; i < parser->local.usage_index; i++)
7253dc8fc08SBenjamin Tissoires 			hid_scan_input_usage(parser, parser->local.usage[i]);
7263dc8fc08SBenjamin Tissoires 		break;
7273dc8fc08SBenjamin Tissoires 	case HID_MAIN_ITEM_TAG_OUTPUT:
7283dc8fc08SBenjamin Tissoires 		break;
7293dc8fc08SBenjamin Tissoires 	case HID_MAIN_ITEM_TAG_FEATURE:
730f961bd35SBenjamin Tissoires 		for (i = 0; i < parser->local.usage_index; i++)
731f961bd35SBenjamin Tissoires 			hid_scan_feature_usage(parser, parser->local.usage[i]);
7323dc8fc08SBenjamin Tissoires 		break;
7333dc8fc08SBenjamin Tissoires 	}
7343dc8fc08SBenjamin Tissoires 
7353dc8fc08SBenjamin Tissoires 	/* Reset the local parser environment */
7363dc8fc08SBenjamin Tissoires 	memset(&parser->local, 0, sizeof(parser->local));
7373dc8fc08SBenjamin Tissoires 
7383dc8fc08SBenjamin Tissoires 	return 0;
7393dc8fc08SBenjamin Tissoires }
7403dc8fc08SBenjamin Tissoires 
741734c6609SHenrik Rydberg /*
742734c6609SHenrik Rydberg  * Scan a report descriptor before the device is added to the bus.
743734c6609SHenrik Rydberg  * Sets device groups and other properties that determine what driver
744734c6609SHenrik Rydberg  * to load.
745734c6609SHenrik Rydberg  */
746734c6609SHenrik Rydberg static int hid_scan_report(struct hid_device *hid)
747734c6609SHenrik Rydberg {
7483dc8fc08SBenjamin Tissoires 	struct hid_parser *parser;
7493dc8fc08SBenjamin Tissoires 	struct hid_item item;
750734c6609SHenrik Rydberg 	__u8 *start = hid->dev_rdesc;
751734c6609SHenrik Rydberg 	__u8 *end = start + hid->dev_rsize;
7523dc8fc08SBenjamin Tissoires 	static int (*dispatch_type[])(struct hid_parser *parser,
7533dc8fc08SBenjamin Tissoires 				      struct hid_item *item) = {
7543dc8fc08SBenjamin Tissoires 		hid_scan_main,
7553dc8fc08SBenjamin Tissoires 		hid_parser_global,
7563dc8fc08SBenjamin Tissoires 		hid_parser_local,
7573dc8fc08SBenjamin Tissoires 		hid_parser_reserved
7583dc8fc08SBenjamin Tissoires 	};
759734c6609SHenrik Rydberg 
7603dc8fc08SBenjamin Tissoires 	parser = vzalloc(sizeof(struct hid_parser));
7613dc8fc08SBenjamin Tissoires 	if (!parser)
7623dc8fc08SBenjamin Tissoires 		return -ENOMEM;
7633dc8fc08SBenjamin Tissoires 
7643dc8fc08SBenjamin Tissoires 	parser->device = hid;
765734c6609SHenrik Rydberg 	hid->group = HID_GROUP_GENERIC;
766734c6609SHenrik Rydberg 
7673dc8fc08SBenjamin Tissoires 	/*
7683dc8fc08SBenjamin Tissoires 	 * The parsing is simpler than the one in hid_open_report() as we should
7693dc8fc08SBenjamin Tissoires 	 * be robust against hid errors. Those errors will be raised by
7703dc8fc08SBenjamin Tissoires 	 * hid_open_report() anyway.
7713dc8fc08SBenjamin Tissoires 	 */
7723dc8fc08SBenjamin Tissoires 	while ((start = fetch_item(start, end, &item)) != NULL)
7733dc8fc08SBenjamin Tissoires 		dispatch_type[item.type](parser, &item);
7743dc8fc08SBenjamin Tissoires 
775f961bd35SBenjamin Tissoires 	/*
776f961bd35SBenjamin Tissoires 	 * Handle special flags set during scanning.
777f961bd35SBenjamin Tissoires 	 */
778f961bd35SBenjamin Tissoires 	if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) &&
779f961bd35SBenjamin Tissoires 	    (hid->group == HID_GROUP_MULTITOUCH))
780f961bd35SBenjamin Tissoires 		hid->group = HID_GROUP_MULTITOUCH_WIN_8;
781f961bd35SBenjamin Tissoires 
7823dc8fc08SBenjamin Tissoires 	vfree(parser);
783734c6609SHenrik Rydberg 	return 0;
784734c6609SHenrik Rydberg }
785734c6609SHenrik Rydberg 
78685cdaf52SJiri Slaby /**
78785cdaf52SJiri Slaby  * hid_parse_report - parse device report
78885cdaf52SJiri Slaby  *
78985cdaf52SJiri Slaby  * @device: hid device
79085cdaf52SJiri Slaby  * @start: report start
79185cdaf52SJiri Slaby  * @size: report size
79285cdaf52SJiri Slaby  *
793a7197c2eSHenrik Rydberg  * Allocate the device report as read by the bus driver. This function should
794a7197c2eSHenrik Rydberg  * only be called from parse() in ll drivers.
795a7197c2eSHenrik Rydberg  */
796a7197c2eSHenrik Rydberg int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
797a7197c2eSHenrik Rydberg {
798a7197c2eSHenrik Rydberg 	hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
799a7197c2eSHenrik Rydberg 	if (!hid->dev_rdesc)
800a7197c2eSHenrik Rydberg 		return -ENOMEM;
801a7197c2eSHenrik Rydberg 	hid->dev_rsize = size;
802a7197c2eSHenrik Rydberg 	return 0;
803a7197c2eSHenrik Rydberg }
804a7197c2eSHenrik Rydberg EXPORT_SYMBOL_GPL(hid_parse_report);
805a7197c2eSHenrik Rydberg 
806331415ffSKees Cook static const char * const hid_report_names[] = {
807331415ffSKees Cook 	"HID_INPUT_REPORT",
808331415ffSKees Cook 	"HID_OUTPUT_REPORT",
809331415ffSKees Cook 	"HID_FEATURE_REPORT",
810331415ffSKees Cook };
811331415ffSKees Cook /**
812331415ffSKees Cook  * hid_validate_values - validate existing device report's value indexes
813331415ffSKees Cook  *
814331415ffSKees Cook  * @device: hid device
815331415ffSKees Cook  * @type: which report type to examine
816331415ffSKees Cook  * @id: which report ID to examine (0 for first)
817331415ffSKees Cook  * @field_index: which report field to examine
818331415ffSKees Cook  * @report_counts: expected number of values
819331415ffSKees Cook  *
820331415ffSKees Cook  * Validate the number of values in a given field of a given report, after
821331415ffSKees Cook  * parsing.
822331415ffSKees Cook  */
823331415ffSKees Cook struct hid_report *hid_validate_values(struct hid_device *hid,
824331415ffSKees Cook 				       unsigned int type, unsigned int id,
825331415ffSKees Cook 				       unsigned int field_index,
826331415ffSKees Cook 				       unsigned int report_counts)
827331415ffSKees Cook {
828331415ffSKees Cook 	struct hid_report *report;
829331415ffSKees Cook 
830331415ffSKees Cook 	if (type > HID_FEATURE_REPORT) {
831331415ffSKees Cook 		hid_err(hid, "invalid HID report type %u\n", type);
832331415ffSKees Cook 		return NULL;
833331415ffSKees Cook 	}
834331415ffSKees Cook 
835331415ffSKees Cook 	if (id >= HID_MAX_IDS) {
836331415ffSKees Cook 		hid_err(hid, "invalid HID report id %u\n", id);
837331415ffSKees Cook 		return NULL;
838331415ffSKees Cook 	}
839331415ffSKees Cook 
840331415ffSKees Cook 	/*
841331415ffSKees Cook 	 * Explicitly not using hid_get_report() here since it depends on
842331415ffSKees Cook 	 * ->numbered being checked, which may not always be the case when
843331415ffSKees Cook 	 * drivers go to access report values.
844331415ffSKees Cook 	 */
845331415ffSKees Cook 	report = hid->report_enum[type].report_id_hash[id];
846331415ffSKees Cook 	if (!report) {
847331415ffSKees Cook 		hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
848331415ffSKees Cook 		return NULL;
849331415ffSKees Cook 	}
850331415ffSKees Cook 	if (report->maxfield <= field_index) {
851331415ffSKees Cook 		hid_err(hid, "not enough fields in %s %u\n",
852331415ffSKees Cook 			hid_report_names[type], id);
853331415ffSKees Cook 		return NULL;
854331415ffSKees Cook 	}
855331415ffSKees Cook 	if (report->field[field_index]->report_count < report_counts) {
856331415ffSKees Cook 		hid_err(hid, "not enough values in %s %u field %u\n",
857331415ffSKees Cook 			hid_report_names[type], id, field_index);
858331415ffSKees Cook 		return NULL;
859331415ffSKees Cook 	}
860331415ffSKees Cook 	return report;
861331415ffSKees Cook }
862331415ffSKees Cook EXPORT_SYMBOL_GPL(hid_validate_values);
863331415ffSKees Cook 
864a7197c2eSHenrik Rydberg /**
865a7197c2eSHenrik Rydberg  * hid_open_report - open a driver-specific device report
866a7197c2eSHenrik Rydberg  *
867a7197c2eSHenrik Rydberg  * @device: hid device
868a7197c2eSHenrik Rydberg  *
869dde5845aSJiri Kosina  * Parse a report description into a hid_device structure. Reports are
870dde5845aSJiri Kosina  * enumerated, fields are attached to these reports.
87185cdaf52SJiri Slaby  * 0 returned on success, otherwise nonzero error value.
872a7197c2eSHenrik Rydberg  *
873a7197c2eSHenrik Rydberg  * This function (or the equivalent hid_parse() macro) should only be
874a7197c2eSHenrik Rydberg  * called from probe() in drivers, before starting the device.
875dde5845aSJiri Kosina  */
876a7197c2eSHenrik Rydberg int hid_open_report(struct hid_device *device)
877dde5845aSJiri Kosina {
878dde5845aSJiri Kosina 	struct hid_parser *parser;
879dde5845aSJiri Kosina 	struct hid_item item;
880a7197c2eSHenrik Rydberg 	unsigned int size;
881a7197c2eSHenrik Rydberg 	__u8 *start;
88286e6b77eSKevin Daughtridge 	__u8 *buf;
883dde5845aSJiri Kosina 	__u8 *end;
88485cdaf52SJiri Slaby 	int ret;
885dde5845aSJiri Kosina 	static int (*dispatch_type[])(struct hid_parser *parser,
886dde5845aSJiri Kosina 				      struct hid_item *item) = {
887dde5845aSJiri Kosina 		hid_parser_main,
888dde5845aSJiri Kosina 		hid_parser_global,
889dde5845aSJiri Kosina 		hid_parser_local,
890dde5845aSJiri Kosina 		hid_parser_reserved
891dde5845aSJiri Kosina 	};
892dde5845aSJiri Kosina 
893a7197c2eSHenrik Rydberg 	if (WARN_ON(device->status & HID_STAT_PARSED))
894a7197c2eSHenrik Rydberg 		return -EBUSY;
895a7197c2eSHenrik Rydberg 
896a7197c2eSHenrik Rydberg 	start = device->dev_rdesc;
897a7197c2eSHenrik Rydberg 	if (WARN_ON(!start))
898a7197c2eSHenrik Rydberg 		return -ENODEV;
899a7197c2eSHenrik Rydberg 	size = device->dev_rsize;
900a7197c2eSHenrik Rydberg 
90186e6b77eSKevin Daughtridge 	buf = kmemdup(start, size, GFP_KERNEL);
90286e6b77eSKevin Daughtridge 	if (buf == NULL)
90385cdaf52SJiri Slaby 		return -ENOMEM;
90486e6b77eSKevin Daughtridge 
90586e6b77eSKevin Daughtridge 	if (device->driver->report_fixup)
90686e6b77eSKevin Daughtridge 		start = device->driver->report_fixup(device, buf, &size);
90786e6b77eSKevin Daughtridge 	else
90886e6b77eSKevin Daughtridge 		start = buf;
90986e6b77eSKevin Daughtridge 
91086e6b77eSKevin Daughtridge 	start = kmemdup(start, size, GFP_KERNEL);
91186e6b77eSKevin Daughtridge 	kfree(buf);
91286e6b77eSKevin Daughtridge 	if (start == NULL)
91386e6b77eSKevin Daughtridge 		return -ENOMEM;
91486e6b77eSKevin Daughtridge 
91586e6b77eSKevin Daughtridge 	device->rdesc = start;
916dde5845aSJiri Kosina 	device->rsize = size;
917dde5845aSJiri Kosina 
918fe258020SJoe Perches 	parser = vzalloc(sizeof(struct hid_parser));
91985cdaf52SJiri Slaby 	if (!parser) {
92085cdaf52SJiri Slaby 		ret = -ENOMEM;
92185cdaf52SJiri Slaby 		goto err;
922dde5845aSJiri Kosina 	}
92385cdaf52SJiri Slaby 
924dde5845aSJiri Kosina 	parser->device = device;
925dde5845aSJiri Kosina 
926dde5845aSJiri Kosina 	end = start + size;
927a7197c2eSHenrik Rydberg 
928a7197c2eSHenrik Rydberg 	device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
929a7197c2eSHenrik Rydberg 				     sizeof(struct hid_collection), GFP_KERNEL);
930a7197c2eSHenrik Rydberg 	if (!device->collection) {
931a7197c2eSHenrik Rydberg 		ret = -ENOMEM;
932a7197c2eSHenrik Rydberg 		goto err;
933a7197c2eSHenrik Rydberg 	}
934a7197c2eSHenrik Rydberg 	device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
935a7197c2eSHenrik Rydberg 
93685cdaf52SJiri Slaby 	ret = -EINVAL;
937dde5845aSJiri Kosina 	while ((start = fetch_item(start, end, &item)) != NULL) {
938dde5845aSJiri Kosina 
939dde5845aSJiri Kosina 		if (item.format != HID_ITEM_FORMAT_SHORT) {
9408c3d52fcSJiri Kosina 			hid_err(device, "unexpected long global item\n");
94185cdaf52SJiri Slaby 			goto err;
942dde5845aSJiri Kosina 		}
943dde5845aSJiri Kosina 
944dde5845aSJiri Kosina 		if (dispatch_type[item.type](parser, &item)) {
9458c3d52fcSJiri Kosina 			hid_err(device, "item %u %u %u %u parsing failed\n",
9464291ee30SJoe Perches 				item.format, (unsigned)item.size,
9474291ee30SJoe Perches 				(unsigned)item.type, (unsigned)item.tag);
94885cdaf52SJiri Slaby 			goto err;
949dde5845aSJiri Kosina 		}
950dde5845aSJiri Kosina 
951dde5845aSJiri Kosina 		if (start == end) {
952dde5845aSJiri Kosina 			if (parser->collection_stack_ptr) {
9538c3d52fcSJiri Kosina 				hid_err(device, "unbalanced collection at end of report description\n");
95485cdaf52SJiri Slaby 				goto err;
955dde5845aSJiri Kosina 			}
956dde5845aSJiri Kosina 			if (parser->local.delimiter_depth) {
9578c3d52fcSJiri Kosina 				hid_err(device, "unbalanced delimiter at end of report description\n");
95885cdaf52SJiri Slaby 				goto err;
959dde5845aSJiri Kosina 			}
96047a80edbSJiri Kosina 			vfree(parser);
961a7197c2eSHenrik Rydberg 			device->status |= HID_STAT_PARSED;
96285cdaf52SJiri Slaby 			return 0;
963dde5845aSJiri Kosina 		}
964dde5845aSJiri Kosina 	}
965dde5845aSJiri Kosina 
9668c3d52fcSJiri Kosina 	hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
96785cdaf52SJiri Slaby err:
96847a80edbSJiri Kosina 	vfree(parser);
969a7197c2eSHenrik Rydberg 	hid_close_report(device);
97085cdaf52SJiri Slaby 	return ret;
971dde5845aSJiri Kosina }
972a7197c2eSHenrik Rydberg EXPORT_SYMBOL_GPL(hid_open_report);
973dde5845aSJiri Kosina 
974dde5845aSJiri Kosina /*
975dde5845aSJiri Kosina  * Convert a signed n-bit integer to signed 32-bit integer. Common
976dde5845aSJiri Kosina  * cases are done through the compiler, the screwed things has to be
977dde5845aSJiri Kosina  * done by hand.
978dde5845aSJiri Kosina  */
979dde5845aSJiri Kosina 
980dde5845aSJiri Kosina static s32 snto32(__u32 value, unsigned n)
981dde5845aSJiri Kosina {
982dde5845aSJiri Kosina 	switch (n) {
983dde5845aSJiri Kosina 	case 8:  return ((__s8)value);
984dde5845aSJiri Kosina 	case 16: return ((__s16)value);
985dde5845aSJiri Kosina 	case 32: return ((__s32)value);
986dde5845aSJiri Kosina 	}
987dde5845aSJiri Kosina 	return value & (1 << (n - 1)) ? value | (-1 << n) : value;
988dde5845aSJiri Kosina }
989dde5845aSJiri Kosina 
99077463838SBenjamin Tissoires s32 hid_snto32(__u32 value, unsigned n)
99177463838SBenjamin Tissoires {
99277463838SBenjamin Tissoires 	return snto32(value, n);
99377463838SBenjamin Tissoires }
99477463838SBenjamin Tissoires EXPORT_SYMBOL_GPL(hid_snto32);
99577463838SBenjamin Tissoires 
996dde5845aSJiri Kosina /*
997dde5845aSJiri Kosina  * Convert a signed 32-bit integer to a signed n-bit integer.
998dde5845aSJiri Kosina  */
999dde5845aSJiri Kosina 
1000dde5845aSJiri Kosina static u32 s32ton(__s32 value, unsigned n)
1001dde5845aSJiri Kosina {
1002dde5845aSJiri Kosina 	s32 a = value >> (n - 1);
1003dde5845aSJiri Kosina 	if (a && a != -1)
1004dde5845aSJiri Kosina 		return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
1005dde5845aSJiri Kosina 	return value & ((1 << n) - 1);
1006dde5845aSJiri Kosina }
1007dde5845aSJiri Kosina 
1008dde5845aSJiri Kosina /*
1009dde5845aSJiri Kosina  * Extract/implement a data field from/to a little endian report (bit array).
1010dde5845aSJiri Kosina  *
1011dde5845aSJiri Kosina  * Code sort-of follows HID spec:
1012dde5845aSJiri Kosina  *     http://www.usb.org/developers/devclass_docs/HID1_11.pdf
1013dde5845aSJiri Kosina  *
1014dde5845aSJiri Kosina  * While the USB HID spec allows unlimited length bit fields in "report
1015dde5845aSJiri Kosina  * descriptors", most devices never use more than 16 bits.
1016dde5845aSJiri Kosina  * One model of UPS is claimed to report "LINEV" as a 32-bit field.
1017dde5845aSJiri Kosina  * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
1018dde5845aSJiri Kosina  */
1019dde5845aSJiri Kosina 
102016ee4cc8SJoe Perches static __u32 extract(const struct hid_device *hid, __u8 *report,
10214291ee30SJoe Perches 		     unsigned offset, unsigned n)
1022dde5845aSJiri Kosina {
1023dde5845aSJiri Kosina 	u64 x;
1024dde5845aSJiri Kosina 
1025c4124c9bSJiri Kosina 	if (n > 32)
10264291ee30SJoe Perches 		hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
1027c4124c9bSJiri Kosina 			 n, current->comm);
1028dde5845aSJiri Kosina 
1029dde5845aSJiri Kosina 	report += offset >> 3;  /* adjust byte index */
1030dde5845aSJiri Kosina 	offset &= 7;            /* now only need bit offset into one byte */
1031c105068fSHarvey Harrison 	x = get_unaligned_le64(report);
1032dde5845aSJiri Kosina 	x = (x >> offset) & ((1ULL << n) - 1);  /* extract bit field */
1033dde5845aSJiri Kosina 	return (u32) x;
1034dde5845aSJiri Kosina }
1035dde5845aSJiri Kosina 
1036dde5845aSJiri Kosina /*
1037dde5845aSJiri Kosina  * "implement" : set bits in a little endian bit stream.
1038dde5845aSJiri Kosina  * Same concepts as "extract" (see comments above).
1039dde5845aSJiri Kosina  * The data mangled in the bit stream remains in little endian
1040dde5845aSJiri Kosina  * order the whole time. It make more sense to talk about
1041dde5845aSJiri Kosina  * endianness of register values by considering a register
1042dde5845aSJiri Kosina  * a "cached" copy of the little endiad bit stream.
1043dde5845aSJiri Kosina  */
104416ee4cc8SJoe Perches static void implement(const struct hid_device *hid, __u8 *report,
10454291ee30SJoe Perches 		      unsigned offset, unsigned n, __u32 value)
1046dde5845aSJiri Kosina {
10476f0168d2SHarvey Harrison 	u64 x;
1048dde5845aSJiri Kosina 	u64 m = (1ULL << n) - 1;
1049dde5845aSJiri Kosina 
1050c4124c9bSJiri Kosina 	if (n > 32)
10514291ee30SJoe Perches 		hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
10524291ee30SJoe Perches 			 __func__, n, current->comm);
1053dde5845aSJiri Kosina 
1054c4124c9bSJiri Kosina 	if (value > m)
10554291ee30SJoe Perches 		hid_warn(hid, "%s() called with too large value %d! (%s)\n",
10564291ee30SJoe Perches 			 __func__, value, current->comm);
1057dde5845aSJiri Kosina 	WARN_ON(value > m);
1058dde5845aSJiri Kosina 	value &= m;
1059dde5845aSJiri Kosina 
1060dde5845aSJiri Kosina 	report += offset >> 3;
1061dde5845aSJiri Kosina 	offset &= 7;
1062dde5845aSJiri Kosina 
10636f0168d2SHarvey Harrison 	x = get_unaligned_le64(report);
10646f0168d2SHarvey Harrison 	x &= ~(m << offset);
10656f0168d2SHarvey Harrison 	x |= ((u64)value) << offset;
10666f0168d2SHarvey Harrison 	put_unaligned_le64(x, report);
1067dde5845aSJiri Kosina }
1068dde5845aSJiri Kosina 
1069dde5845aSJiri Kosina /*
1070dde5845aSJiri Kosina  * Search an array for a value.
1071dde5845aSJiri Kosina  */
1072dde5845aSJiri Kosina 
107316ee4cc8SJoe Perches static int search(__s32 *array, __s32 value, unsigned n)
1074dde5845aSJiri Kosina {
1075dde5845aSJiri Kosina 	while (n--) {
1076dde5845aSJiri Kosina 		if (*array++ == value)
1077dde5845aSJiri Kosina 			return 0;
1078dde5845aSJiri Kosina 	}
1079dde5845aSJiri Kosina 	return -1;
1080dde5845aSJiri Kosina }
1081dde5845aSJiri Kosina 
108285cdaf52SJiri Slaby /**
108385cdaf52SJiri Slaby  * hid_match_report - check if driver's raw_event should be called
108485cdaf52SJiri Slaby  *
108585cdaf52SJiri Slaby  * @hid: hid device
108685cdaf52SJiri Slaby  * @report_type: type to match against
108785cdaf52SJiri Slaby  *
108885cdaf52SJiri Slaby  * compare hid->driver->report_table->report_type to report->type
108985cdaf52SJiri Slaby  */
109085cdaf52SJiri Slaby static int hid_match_report(struct hid_device *hid, struct hid_report *report)
1091dde5845aSJiri Kosina {
109285cdaf52SJiri Slaby 	const struct hid_report_id *id = hid->driver->report_table;
109385cdaf52SJiri Slaby 
109485cdaf52SJiri Slaby 	if (!id) /* NULL means all */
109585cdaf52SJiri Slaby 		return 1;
109685cdaf52SJiri Slaby 
109785cdaf52SJiri Slaby 	for (; id->report_type != HID_TERMINATOR; id++)
109885cdaf52SJiri Slaby 		if (id->report_type == HID_ANY_ID ||
109985cdaf52SJiri Slaby 				id->report_type == report->type)
110085cdaf52SJiri Slaby 			return 1;
110185cdaf52SJiri Slaby 	return 0;
110285cdaf52SJiri Slaby }
110385cdaf52SJiri Slaby 
110485cdaf52SJiri Slaby /**
110585cdaf52SJiri Slaby  * hid_match_usage - check if driver's event should be called
110685cdaf52SJiri Slaby  *
110785cdaf52SJiri Slaby  * @hid: hid device
110885cdaf52SJiri Slaby  * @usage: usage to match against
110985cdaf52SJiri Slaby  *
111085cdaf52SJiri Slaby  * compare hid->driver->usage_table->usage_{type,code} to
111185cdaf52SJiri Slaby  * usage->usage_{type,code}
111285cdaf52SJiri Slaby  */
111385cdaf52SJiri Slaby static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
111485cdaf52SJiri Slaby {
111585cdaf52SJiri Slaby 	const struct hid_usage_id *id = hid->driver->usage_table;
111685cdaf52SJiri Slaby 
111785cdaf52SJiri Slaby 	if (!id) /* NULL means all */
111885cdaf52SJiri Slaby 		return 1;
111985cdaf52SJiri Slaby 
112085cdaf52SJiri Slaby 	for (; id->usage_type != HID_ANY_ID - 1; id++)
112185cdaf52SJiri Slaby 		if ((id->usage_hid == HID_ANY_ID ||
112285cdaf52SJiri Slaby 				id->usage_hid == usage->hid) &&
112385cdaf52SJiri Slaby 				(id->usage_type == HID_ANY_ID ||
112485cdaf52SJiri Slaby 				id->usage_type == usage->type) &&
112585cdaf52SJiri Slaby 				(id->usage_code == HID_ANY_ID ||
112685cdaf52SJiri Slaby 				 id->usage_code == usage->code))
112785cdaf52SJiri Slaby 			return 1;
112885cdaf52SJiri Slaby 	return 0;
112985cdaf52SJiri Slaby }
113085cdaf52SJiri Slaby 
113185cdaf52SJiri Slaby static void hid_process_event(struct hid_device *hid, struct hid_field *field,
113285cdaf52SJiri Slaby 		struct hid_usage *usage, __s32 value, int interrupt)
113385cdaf52SJiri Slaby {
113485cdaf52SJiri Slaby 	struct hid_driver *hdrv = hid->driver;
113585cdaf52SJiri Slaby 	int ret;
113685cdaf52SJiri Slaby 
11379bfc8da0SHenrik Rydberg 	if (!list_empty(&hid->debug_list))
1138cd667ce2SJiri Kosina 		hid_dump_input(hid, usage, value);
113985cdaf52SJiri Slaby 
114085cdaf52SJiri Slaby 	if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
114185cdaf52SJiri Slaby 		ret = hdrv->event(hid, field, usage, value);
114285cdaf52SJiri Slaby 		if (ret != 0) {
114385cdaf52SJiri Slaby 			if (ret < 0)
11448c3d52fcSJiri Kosina 				hid_err(hid, "%s's event failed with %d\n",
114585cdaf52SJiri Slaby 						hdrv->name, ret);
114685cdaf52SJiri Slaby 			return;
114785cdaf52SJiri Slaby 		}
114885cdaf52SJiri Slaby 	}
114985cdaf52SJiri Slaby 
1150dde5845aSJiri Kosina 	if (hid->claimed & HID_CLAIMED_INPUT)
1151dde5845aSJiri Kosina 		hidinput_hid_event(hid, field, usage, value);
1152aa938f79SJiri Kosina 	if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
1153aa938f79SJiri Kosina 		hid->hiddev_hid_event(hid, field, usage, value);
1154dde5845aSJiri Kosina }
1155dde5845aSJiri Kosina 
1156dde5845aSJiri Kosina /*
1157dde5845aSJiri Kosina  * Analyse a received field, and fetch the data from it. The field
1158dde5845aSJiri Kosina  * content is stored for next report processing (we do differential
1159dde5845aSJiri Kosina  * reporting to the layer).
1160dde5845aSJiri Kosina  */
1161dde5845aSJiri Kosina 
1162abdff0f7SAdrian Bunk static void hid_input_field(struct hid_device *hid, struct hid_field *field,
1163abdff0f7SAdrian Bunk 			    __u8 *data, int interrupt)
1164dde5845aSJiri Kosina {
1165dde5845aSJiri Kosina 	unsigned n;
1166dde5845aSJiri Kosina 	unsigned count = field->report_count;
1167dde5845aSJiri Kosina 	unsigned offset = field->report_offset;
1168dde5845aSJiri Kosina 	unsigned size = field->report_size;
1169dde5845aSJiri Kosina 	__s32 min = field->logical_minimum;
1170dde5845aSJiri Kosina 	__s32 max = field->logical_maximum;
1171dde5845aSJiri Kosina 	__s32 *value;
1172dde5845aSJiri Kosina 
1173a3789a17SJoe Perches 	value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
1174a3789a17SJoe Perches 	if (!value)
1175dde5845aSJiri Kosina 		return;
1176dde5845aSJiri Kosina 
1177dde5845aSJiri Kosina 	for (n = 0; n < count; n++) {
1178dde5845aSJiri Kosina 
11794291ee30SJoe Perches 		value[n] = min < 0 ?
11804291ee30SJoe Perches 			snto32(extract(hid, data, offset + n * size, size),
11814291ee30SJoe Perches 			       size) :
11824291ee30SJoe Perches 			extract(hid, data, offset + n * size, size);
1183dde5845aSJiri Kosina 
11844291ee30SJoe Perches 		/* Ignore report if ErrorRollOver */
11854291ee30SJoe Perches 		if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
11864291ee30SJoe Perches 		    value[n] >= min && value[n] <= max &&
11874291ee30SJoe Perches 		    field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
1188dde5845aSJiri Kosina 			goto exit;
1189dde5845aSJiri Kosina 	}
1190dde5845aSJiri Kosina 
1191dde5845aSJiri Kosina 	for (n = 0; n < count; n++) {
1192dde5845aSJiri Kosina 
1193dde5845aSJiri Kosina 		if (HID_MAIN_ITEM_VARIABLE & field->flags) {
1194dde5845aSJiri Kosina 			hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
1195dde5845aSJiri Kosina 			continue;
1196dde5845aSJiri Kosina 		}
1197dde5845aSJiri Kosina 
1198dde5845aSJiri Kosina 		if (field->value[n] >= min && field->value[n] <= max
1199dde5845aSJiri Kosina 			&& field->usage[field->value[n] - min].hid
1200dde5845aSJiri Kosina 			&& search(value, field->value[n], count))
1201dde5845aSJiri Kosina 				hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
1202dde5845aSJiri Kosina 
1203dde5845aSJiri Kosina 		if (value[n] >= min && value[n] <= max
1204dde5845aSJiri Kosina 			&& field->usage[value[n] - min].hid
1205dde5845aSJiri Kosina 			&& search(field->value, value[n], count))
1206dde5845aSJiri Kosina 				hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
1207dde5845aSJiri Kosina 	}
1208dde5845aSJiri Kosina 
1209dde5845aSJiri Kosina 	memcpy(field->value, value, count * sizeof(__s32));
1210dde5845aSJiri Kosina exit:
1211dde5845aSJiri Kosina 	kfree(value);
1212dde5845aSJiri Kosina }
1213dde5845aSJiri Kosina 
1214dde5845aSJiri Kosina /*
1215dde5845aSJiri Kosina  * Output the field into the report.
1216dde5845aSJiri Kosina  */
1217dde5845aSJiri Kosina 
12184291ee30SJoe Perches static void hid_output_field(const struct hid_device *hid,
12194291ee30SJoe Perches 			     struct hid_field *field, __u8 *data)
1220dde5845aSJiri Kosina {
1221dde5845aSJiri Kosina 	unsigned count = field->report_count;
1222dde5845aSJiri Kosina 	unsigned offset = field->report_offset;
1223dde5845aSJiri Kosina 	unsigned size = field->report_size;
1224dde5845aSJiri Kosina 	unsigned n;
1225dde5845aSJiri Kosina 
1226dde5845aSJiri Kosina 	for (n = 0; n < count; n++) {
1227dde5845aSJiri Kosina 		if (field->logical_minimum < 0)	/* signed values */
12284291ee30SJoe Perches 			implement(hid, data, offset + n * size, size,
12294291ee30SJoe Perches 				  s32ton(field->value[n], size));
1230dde5845aSJiri Kosina 		else				/* unsigned values */
12314291ee30SJoe Perches 			implement(hid, data, offset + n * size, size,
12324291ee30SJoe Perches 				  field->value[n]);
1233dde5845aSJiri Kosina 	}
1234dde5845aSJiri Kosina }
1235dde5845aSJiri Kosina 
1236dde5845aSJiri Kosina /*
123727ce4050SJiri Kosina  * Create a report. 'data' has to be allocated using
123827ce4050SJiri Kosina  * hid_alloc_report_buf() so that it has proper size.
1239dde5845aSJiri Kosina  */
1240dde5845aSJiri Kosina 
1241229695e5SJiri Kosina void hid_output_report(struct hid_report *report, __u8 *data)
1242dde5845aSJiri Kosina {
1243dde5845aSJiri Kosina 	unsigned n;
1244dde5845aSJiri Kosina 
1245dde5845aSJiri Kosina 	if (report->id > 0)
1246dde5845aSJiri Kosina 		*data++ = report->id;
1247dde5845aSJiri Kosina 
124875c28df8SPete Zaitcev 	memset(data, 0, ((report->size - 1) >> 3) + 1);
1249dde5845aSJiri Kosina 	for (n = 0; n < report->maxfield; n++)
12504291ee30SJoe Perches 		hid_output_field(report->device, report->field[n], data);
1251dde5845aSJiri Kosina }
1252229695e5SJiri Kosina EXPORT_SYMBOL_GPL(hid_output_report);
1253dde5845aSJiri Kosina 
12544fa5a7f7SBenjamin Tissoires static int hid_report_len(struct hid_report *report)
12554fa5a7f7SBenjamin Tissoires {
1256*19e4ec52SBenjamin Tissoires 	/* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */
1257*19e4ec52SBenjamin Tissoires 	return ((report->size - 1) >> 3) + 1 + (report->id > 0);
12584fa5a7f7SBenjamin Tissoires }
12594fa5a7f7SBenjamin Tissoires 
1260dde5845aSJiri Kosina /*
126127ce4050SJiri Kosina  * Allocator for buffer that is going to be passed to hid_output_report()
126227ce4050SJiri Kosina  */
126327ce4050SJiri Kosina u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
126427ce4050SJiri Kosina {
126527ce4050SJiri Kosina 	/*
126627ce4050SJiri Kosina 	 * 7 extra bytes are necessary to achieve proper functionality
126727ce4050SJiri Kosina 	 * of implement() working on 8 byte chunks
126827ce4050SJiri Kosina 	 */
126927ce4050SJiri Kosina 
1270*19e4ec52SBenjamin Tissoires 	int len = hid_report_len(report) + 7;
127127ce4050SJiri Kosina 
127227ce4050SJiri Kosina 	return kmalloc(len, flags);
127327ce4050SJiri Kosina }
127427ce4050SJiri Kosina EXPORT_SYMBOL_GPL(hid_alloc_report_buf);
127527ce4050SJiri Kosina 
127627ce4050SJiri Kosina /*
1277dde5845aSJiri Kosina  * Set a field value. The report this field belongs to has to be
1278dde5845aSJiri Kosina  * created and transferred to the device, to set this value in the
1279dde5845aSJiri Kosina  * device.
1280dde5845aSJiri Kosina  */
1281dde5845aSJiri Kosina 
1282dde5845aSJiri Kosina int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1283dde5845aSJiri Kosina {
1284be67b68dSKees Cook 	unsigned size;
1285be67b68dSKees Cook 
1286be67b68dSKees Cook 	if (!field)
1287be67b68dSKees Cook 		return -1;
1288be67b68dSKees Cook 
1289be67b68dSKees Cook 	size = field->report_size;
1290dde5845aSJiri Kosina 
1291cd667ce2SJiri Kosina 	hid_dump_input(field->report->device, field->usage + offset, value);
1292dde5845aSJiri Kosina 
1293dde5845aSJiri Kosina 	if (offset >= field->report_count) {
12948c3d52fcSJiri Kosina 		hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
12958c3d52fcSJiri Kosina 				offset, field->report_count);
1296dde5845aSJiri Kosina 		return -1;
1297dde5845aSJiri Kosina 	}
1298dde5845aSJiri Kosina 	if (field->logical_minimum < 0) {
1299dde5845aSJiri Kosina 		if (value != snto32(s32ton(value, size), size)) {
13008c3d52fcSJiri Kosina 			hid_err(field->report->device, "value %d is out of range\n", value);
1301dde5845aSJiri Kosina 			return -1;
1302dde5845aSJiri Kosina 		}
1303dde5845aSJiri Kosina 	}
1304dde5845aSJiri Kosina 	field->value[offset] = value;
1305dde5845aSJiri Kosina 	return 0;
1306dde5845aSJiri Kosina }
1307229695e5SJiri Kosina EXPORT_SYMBOL_GPL(hid_set_field);
1308dde5845aSJiri Kosina 
130985cdaf52SJiri Slaby static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
131085cdaf52SJiri Slaby 		const u8 *data)
131185cdaf52SJiri Slaby {
131285cdaf52SJiri Slaby 	struct hid_report *report;
131385cdaf52SJiri Slaby 	unsigned int n = 0;	/* Normally report number is 0 */
131485cdaf52SJiri Slaby 
131585cdaf52SJiri Slaby 	/* Device uses numbered reports, data[0] is report number */
131685cdaf52SJiri Slaby 	if (report_enum->numbered)
131785cdaf52SJiri Slaby 		n = *data;
131885cdaf52SJiri Slaby 
131985cdaf52SJiri Slaby 	report = report_enum->report_id_hash[n];
132085cdaf52SJiri Slaby 	if (report == NULL)
132185cdaf52SJiri Slaby 		dbg_hid("undefined report_id %u received\n", n);
132285cdaf52SJiri Slaby 
132385cdaf52SJiri Slaby 	return report;
132485cdaf52SJiri Slaby }
132585cdaf52SJiri Slaby 
13264fa5a7f7SBenjamin Tissoires /*
13274fa5a7f7SBenjamin Tissoires  * Implement a generic .request() callback, using .raw_request()
13284fa5a7f7SBenjamin Tissoires  * DO NOT USE in hid drivers directly, but through hid_hw_request instead.
13294fa5a7f7SBenjamin Tissoires  */
13304fa5a7f7SBenjamin Tissoires void __hid_request(struct hid_device *hid, struct hid_report *report,
13314fa5a7f7SBenjamin Tissoires 		int reqtype)
13324fa5a7f7SBenjamin Tissoires {
13334fa5a7f7SBenjamin Tissoires 	char *buf;
13344fa5a7f7SBenjamin Tissoires 	int ret;
13354fa5a7f7SBenjamin Tissoires 	int len;
13364fa5a7f7SBenjamin Tissoires 
13374fa5a7f7SBenjamin Tissoires 	buf = hid_alloc_report_buf(report, GFP_KERNEL);
13384fa5a7f7SBenjamin Tissoires 	if (!buf)
13394fa5a7f7SBenjamin Tissoires 		return;
13404fa5a7f7SBenjamin Tissoires 
13414fa5a7f7SBenjamin Tissoires 	len = hid_report_len(report);
13424fa5a7f7SBenjamin Tissoires 
13434fa5a7f7SBenjamin Tissoires 	if (reqtype == HID_REQ_SET_REPORT)
13444fa5a7f7SBenjamin Tissoires 		hid_output_report(report, buf);
13454fa5a7f7SBenjamin Tissoires 
13464fa5a7f7SBenjamin Tissoires 	ret = hid->ll_driver->raw_request(hid, report->id, buf, len,
13474fa5a7f7SBenjamin Tissoires 					  report->type, reqtype);
13484fa5a7f7SBenjamin Tissoires 	if (ret < 0) {
13494fa5a7f7SBenjamin Tissoires 		dbg_hid("unable to complete request: %d\n", ret);
13504fa5a7f7SBenjamin Tissoires 		goto out;
13514fa5a7f7SBenjamin Tissoires 	}
13524fa5a7f7SBenjamin Tissoires 
13534fa5a7f7SBenjamin Tissoires 	if (reqtype == HID_REQ_GET_REPORT)
13544fa5a7f7SBenjamin Tissoires 		hid_input_report(hid, report->type, buf, ret, 0);
13554fa5a7f7SBenjamin Tissoires 
13564fa5a7f7SBenjamin Tissoires out:
13574fa5a7f7SBenjamin Tissoires 	kfree(buf);
13584fa5a7f7SBenjamin Tissoires }
13594fa5a7f7SBenjamin Tissoires EXPORT_SYMBOL_GPL(__hid_request);
13604fa5a7f7SBenjamin Tissoires 
1361b6787242SJiri Kosina int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
136285cdaf52SJiri Slaby 		int interrupt)
1363aa8de2f0SJiri Kosina {
1364aa8de2f0SJiri Kosina 	struct hid_report_enum *report_enum = hid->report_enum + type;
1365aa8de2f0SJiri Kosina 	struct hid_report *report;
13666d85d037SBenjamin Tissoires 	struct hid_driver *hdrv;
136785cdaf52SJiri Slaby 	unsigned int a;
136885cdaf52SJiri Slaby 	int rsize, csize = size;
136985cdaf52SJiri Slaby 	u8 *cdata = data;
1370b6787242SJiri Kosina 	int ret = 0;
1371aa8de2f0SJiri Kosina 
137285cdaf52SJiri Slaby 	report = hid_get_report(report_enum, data);
137385cdaf52SJiri Slaby 	if (!report)
1374b6787242SJiri Kosina 		goto out;
1375aa8de2f0SJiri Kosina 
137685cdaf52SJiri Slaby 	if (report_enum->numbered) {
137785cdaf52SJiri Slaby 		cdata++;
137885cdaf52SJiri Slaby 		csize--;
1379aa8de2f0SJiri Kosina 	}
1380aa8de2f0SJiri Kosina 
1381aa8de2f0SJiri Kosina 	rsize = ((report->size - 1) >> 3) + 1;
1382aa8de2f0SJiri Kosina 
1383966922f2SArmando Visconti 	if (rsize > HID_MAX_BUFFER_SIZE)
1384966922f2SArmando Visconti 		rsize = HID_MAX_BUFFER_SIZE;
1385966922f2SArmando Visconti 
138685cdaf52SJiri Slaby 	if (csize < rsize) {
138785cdaf52SJiri Slaby 		dbg_hid("report %d is too short, (%d < %d)\n", report->id,
138885cdaf52SJiri Slaby 				csize, rsize);
138985cdaf52SJiri Slaby 		memset(cdata + csize, 0, rsize - csize);
1390aa8de2f0SJiri Kosina 	}
1391aa8de2f0SJiri Kosina 
1392aa8de2f0SJiri Kosina 	if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1393aa8de2f0SJiri Kosina 		hid->hiddev_report_event(hid, report);
1394b6787242SJiri Kosina 	if (hid->claimed & HID_CLAIMED_HIDRAW) {
1395b6787242SJiri Kosina 		ret = hidraw_report_event(hid, data, size);
1396b6787242SJiri Kosina 		if (ret)
1397b6787242SJiri Kosina 			goto out;
1398b6787242SJiri Kosina 	}
1399aa8de2f0SJiri Kosina 
1400cc6b54aaSBenjamin Tissoires 	if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) {
140185cdaf52SJiri Slaby 		for (a = 0; a < report->maxfield; a++)
140285cdaf52SJiri Slaby 			hid_input_field(hid, report->field[a], cdata, interrupt);
14036d85d037SBenjamin Tissoires 		hdrv = hid->driver;
14046d85d037SBenjamin Tissoires 		if (hdrv && hdrv->report)
14056d85d037SBenjamin Tissoires 			hdrv->report(hid, report);
1406b94e3c94SMatthieu CASTET 	}
1407aa8de2f0SJiri Kosina 
1408aa8de2f0SJiri Kosina 	if (hid->claimed & HID_CLAIMED_INPUT)
1409aa8de2f0SJiri Kosina 		hidinput_report_event(hid, report);
1410b6787242SJiri Kosina out:
1411b6787242SJiri Kosina 	return ret;
141285cdaf52SJiri Slaby }
141385cdaf52SJiri Slaby EXPORT_SYMBOL_GPL(hid_report_raw_event);
141485cdaf52SJiri Slaby 
141585cdaf52SJiri Slaby /**
141685cdaf52SJiri Slaby  * hid_input_report - report data from lower layer (usb, bt...)
141785cdaf52SJiri Slaby  *
141885cdaf52SJiri Slaby  * @hid: hid device
141985cdaf52SJiri Slaby  * @type: HID report type (HID_*_REPORT)
142085cdaf52SJiri Slaby  * @data: report contents
142185cdaf52SJiri Slaby  * @size: size of data parameter
1422ff9b00a2SJiri Kosina  * @interrupt: distinguish between interrupt and control transfers
142385cdaf52SJiri Slaby  *
142485cdaf52SJiri Slaby  * This is data entry for lower layers.
142585cdaf52SJiri Slaby  */
142685cdaf52SJiri Slaby int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
142785cdaf52SJiri Slaby {
142876c317d6SJulia Lawall 	struct hid_report_enum *report_enum;
142976c317d6SJulia Lawall 	struct hid_driver *hdrv;
143085cdaf52SJiri Slaby 	struct hid_report *report;
143145dc1ac7SJiri Kosina 	int ret = 0;
143285cdaf52SJiri Slaby 
14334ea54542SDavid Herrmann 	if (!hid)
143485cdaf52SJiri Slaby 		return -ENODEV;
14354ea54542SDavid Herrmann 
1436c849a614SAndrew de los Reyes 	if (down_trylock(&hid->driver_input_lock))
14374ea54542SDavid Herrmann 		return -EBUSY;
14384ea54542SDavid Herrmann 
14394ea54542SDavid Herrmann 	if (!hid->driver) {
14404ea54542SDavid Herrmann 		ret = -ENODEV;
14414ea54542SDavid Herrmann 		goto unlock;
14424ea54542SDavid Herrmann 	}
144376c317d6SJulia Lawall 	report_enum = hid->report_enum + type;
144476c317d6SJulia Lawall 	hdrv = hid->driver;
144585cdaf52SJiri Slaby 
144685cdaf52SJiri Slaby 	if (!size) {
144785cdaf52SJiri Slaby 		dbg_hid("empty report\n");
14484ea54542SDavid Herrmann 		ret = -1;
14494ea54542SDavid Herrmann 		goto unlock;
145085cdaf52SJiri Slaby 	}
145185cdaf52SJiri Slaby 
1452b94e3c94SMatthieu CASTET 	/* Avoid unnecessary overhead if debugfs is disabled */
1453a5f04b9dSBenjamin Tissoires 	if (!list_empty(&hid->debug_list))
1454a5f04b9dSBenjamin Tissoires 		hid_dump_report(hid, type, data, size);
1455b94e3c94SMatthieu CASTET 
1456f77e347bSJiri Kosina 	report = hid_get_report(report_enum, data);
1457f77e347bSJiri Kosina 
14584ea54542SDavid Herrmann 	if (!report) {
14594ea54542SDavid Herrmann 		ret = -1;
14604ea54542SDavid Herrmann 		goto unlock;
14614ea54542SDavid Herrmann 	}
1462f77e347bSJiri Kosina 
146385cdaf52SJiri Slaby 	if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
146485cdaf52SJiri Slaby 		ret = hdrv->raw_event(hid, report, data, size);
1465556483e2SFelix Rueegg 		if (ret < 0)
14664ea54542SDavid Herrmann 			goto unlock;
14674ea54542SDavid Herrmann 	}
146885cdaf52SJiri Slaby 
1469b6787242SJiri Kosina 	ret = hid_report_raw_event(hid, type, data, size, interrupt);
1470aa8de2f0SJiri Kosina 
14714ea54542SDavid Herrmann unlock:
1472c849a614SAndrew de los Reyes 	up(&hid->driver_input_lock);
147345dc1ac7SJiri Kosina 	return ret;
1474aa8de2f0SJiri Kosina }
1475aa8de2f0SJiri Kosina EXPORT_SYMBOL_GPL(hid_input_report);
1476aa8de2f0SJiri Kosina 
14770f37cd03SJiri Kosina static bool hid_match_one_id(struct hid_device *hdev,
14780f37cd03SJiri Kosina 		const struct hid_device_id *id)
14790f37cd03SJiri Kosina {
14807431fb76SHenrik Rydberg 	return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
14814d53b801SHenrik Rydberg 		(id->group == HID_GROUP_ANY || id->group == hdev->group) &&
14820f37cd03SJiri Kosina 		(id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
14830f37cd03SJiri Kosina 		(id->product == HID_ANY_ID || id->product == hdev->product);
14840f37cd03SJiri Kosina }
14850f37cd03SJiri Kosina 
1486bbc21cfdSJeremy Fitzhardinge const struct hid_device_id *hid_match_id(struct hid_device *hdev,
14870f37cd03SJiri Kosina 		const struct hid_device_id *id)
14880f37cd03SJiri Kosina {
14890f37cd03SJiri Kosina 	for (; id->bus; id++)
14900f37cd03SJiri Kosina 		if (hid_match_one_id(hdev, id))
14910f37cd03SJiri Kosina 			return id;
14920f37cd03SJiri Kosina 
14930f37cd03SJiri Kosina 	return NULL;
14940f37cd03SJiri Kosina }
14950f37cd03SJiri Kosina 
14960f37cd03SJiri Kosina static const struct hid_device_id hid_hiddev_list[] = {
1497c0bd6a42SRichard Hughes 	{ HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1498c0bd6a42SRichard Hughes 	{ HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
14990f37cd03SJiri Kosina 	{ }
15000f37cd03SJiri Kosina };
15010f37cd03SJiri Kosina 
15020f37cd03SJiri Kosina static bool hid_hiddev(struct hid_device *hdev)
15030f37cd03SJiri Kosina {
15040f37cd03SJiri Kosina 	return !!hid_match_id(hdev, hid_hiddev_list);
15050f37cd03SJiri Kosina }
15060f37cd03SJiri Kosina 
15076d3bfb74SAlan Ott 
15086d3bfb74SAlan Ott static ssize_t
15096d3bfb74SAlan Ott read_report_descriptor(struct file *filp, struct kobject *kobj,
15106d3bfb74SAlan Ott 		struct bin_attribute *attr,
15116d3bfb74SAlan Ott 		char *buf, loff_t off, size_t count)
15126d3bfb74SAlan Ott {
15136d3bfb74SAlan Ott 	struct device *dev = container_of(kobj, struct device, kobj);
15146d3bfb74SAlan Ott 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
15156d3bfb74SAlan Ott 
15166d3bfb74SAlan Ott 	if (off >= hdev->rsize)
15176d3bfb74SAlan Ott 		return 0;
15186d3bfb74SAlan Ott 
15196d3bfb74SAlan Ott 	if (off + count > hdev->rsize)
15206d3bfb74SAlan Ott 		count = hdev->rsize - off;
15216d3bfb74SAlan Ott 
15226d3bfb74SAlan Ott 	memcpy(buf, hdev->rdesc + off, count);
15236d3bfb74SAlan Ott 
15246d3bfb74SAlan Ott 	return count;
15256d3bfb74SAlan Ott }
15266d3bfb74SAlan Ott 
15276d3bfb74SAlan Ott static struct bin_attribute dev_bin_attr_report_desc = {
15286d3bfb74SAlan Ott 	.attr = { .name = "report_descriptor", .mode = 0444 },
15296d3bfb74SAlan Ott 	.read = read_report_descriptor,
15306d3bfb74SAlan Ott 	.size = HID_MAX_DESCRIPTOR_SIZE,
15316d3bfb74SAlan Ott };
15326d3bfb74SAlan Ott 
153393c10132SJiri Slaby int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
153493c10132SJiri Slaby {
153593c10132SJiri Slaby 	static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
153693c10132SJiri Slaby 		"Joystick", "Gamepad", "Keyboard", "Keypad",
153793c10132SJiri Slaby 		"Multi-Axis Controller"
153893c10132SJiri Slaby 	};
153993c10132SJiri Slaby 	const char *type, *bus;
154093c10132SJiri Slaby 	char buf[64];
154193c10132SJiri Slaby 	unsigned int i;
154293c10132SJiri Slaby 	int len;
15436d3bfb74SAlan Ott 	int ret;
154493c10132SJiri Slaby 
1545b5e5a37eSBastien Nocera 	if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1546b5e5a37eSBastien Nocera 		connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
15473a343ee4SDaniel Mack 	if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
15483a343ee4SDaniel Mack 		connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
154993c10132SJiri Slaby 	if (hdev->bus != BUS_USB)
155093c10132SJiri Slaby 		connect_mask &= ~HID_CONNECT_HIDDEV;
15510f37cd03SJiri Kosina 	if (hid_hiddev(hdev))
15520f37cd03SJiri Kosina 		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
155393c10132SJiri Slaby 
155493c10132SJiri Slaby 	if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
155593c10132SJiri Slaby 				connect_mask & HID_CONNECT_HIDINPUT_FORCE))
155693c10132SJiri Slaby 		hdev->claimed |= HID_CLAIMED_INPUT;
1557b77c3920SBenjamin Tissoires 
155893c10132SJiri Slaby 	if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
155993c10132SJiri Slaby 			!hdev->hiddev_connect(hdev,
156093c10132SJiri Slaby 				connect_mask & HID_CONNECT_HIDDEV_FORCE))
156193c10132SJiri Slaby 		hdev->claimed |= HID_CLAIMED_HIDDEV;
156293c10132SJiri Slaby 	if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
156393c10132SJiri Slaby 		hdev->claimed |= HID_CLAIMED_HIDRAW;
156493c10132SJiri Slaby 
15654bc19f62SDavid Herrmann 	/* Drivers with the ->raw_event callback set are not required to connect
15664bc19f62SDavid Herrmann 	 * to any other listener. */
15674bc19f62SDavid Herrmann 	if (!hdev->claimed && !hdev->driver->raw_event) {
15684bc19f62SDavid Herrmann 		hid_err(hdev, "device has no listeners, quitting\n");
156993c10132SJiri Slaby 		return -ENODEV;
157093c10132SJiri Slaby 	}
157193c10132SJiri Slaby 
157293c10132SJiri Slaby 	if ((hdev->claimed & HID_CLAIMED_INPUT) &&
157393c10132SJiri Slaby 			(connect_mask & HID_CONNECT_FF) && hdev->ff_init)
157493c10132SJiri Slaby 		hdev->ff_init(hdev);
157593c10132SJiri Slaby 
157693c10132SJiri Slaby 	len = 0;
157793c10132SJiri Slaby 	if (hdev->claimed & HID_CLAIMED_INPUT)
157893c10132SJiri Slaby 		len += sprintf(buf + len, "input");
157993c10132SJiri Slaby 	if (hdev->claimed & HID_CLAIMED_HIDDEV)
158093c10132SJiri Slaby 		len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
158193c10132SJiri Slaby 				hdev->minor);
158293c10132SJiri Slaby 	if (hdev->claimed & HID_CLAIMED_HIDRAW)
158393c10132SJiri Slaby 		len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
158493c10132SJiri Slaby 				((struct hidraw *)hdev->hidraw)->minor);
158593c10132SJiri Slaby 
158693c10132SJiri Slaby 	type = "Device";
158793c10132SJiri Slaby 	for (i = 0; i < hdev->maxcollection; i++) {
158893c10132SJiri Slaby 		struct hid_collection *col = &hdev->collection[i];
158993c10132SJiri Slaby 		if (col->type == HID_COLLECTION_APPLICATION &&
159093c10132SJiri Slaby 		   (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
159193c10132SJiri Slaby 		   (col->usage & 0xffff) < ARRAY_SIZE(types)) {
159293c10132SJiri Slaby 			type = types[col->usage & 0xffff];
159393c10132SJiri Slaby 			break;
159493c10132SJiri Slaby 		}
159593c10132SJiri Slaby 	}
159693c10132SJiri Slaby 
159793c10132SJiri Slaby 	switch (hdev->bus) {
159893c10132SJiri Slaby 	case BUS_USB:
159993c10132SJiri Slaby 		bus = "USB";
160093c10132SJiri Slaby 		break;
160193c10132SJiri Slaby 	case BUS_BLUETOOTH:
160293c10132SJiri Slaby 		bus = "BLUETOOTH";
160393c10132SJiri Slaby 		break;
160493c10132SJiri Slaby 	default:
160593c10132SJiri Slaby 		bus = "<UNKNOWN>";
160693c10132SJiri Slaby 	}
160793c10132SJiri Slaby 
16086d3bfb74SAlan Ott 	ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
16096d3bfb74SAlan Ott 	if (ret)
16106d3bfb74SAlan Ott 		hid_warn(hdev,
16116d3bfb74SAlan Ott 			 "can't create sysfs report descriptor attribute err: %d\n", ret);
16126d3bfb74SAlan Ott 
16134291ee30SJoe Perches 	hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
161493c10132SJiri Slaby 		 buf, bus, hdev->version >> 8, hdev->version & 0xff,
161593c10132SJiri Slaby 		 type, hdev->name, hdev->phys);
161693c10132SJiri Slaby 
161793c10132SJiri Slaby 	return 0;
161893c10132SJiri Slaby }
161993c10132SJiri Slaby EXPORT_SYMBOL_GPL(hid_connect);
162093c10132SJiri Slaby 
1621c4c259bcSJiri Kosina void hid_disconnect(struct hid_device *hdev)
1622c4c259bcSJiri Kosina {
16236d3bfb74SAlan Ott 	device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1624c4c259bcSJiri Kosina 	if (hdev->claimed & HID_CLAIMED_INPUT)
1625c4c259bcSJiri Kosina 		hidinput_disconnect(hdev);
1626c4c259bcSJiri Kosina 	if (hdev->claimed & HID_CLAIMED_HIDDEV)
1627c4c259bcSJiri Kosina 		hdev->hiddev_disconnect(hdev);
1628c4c259bcSJiri Kosina 	if (hdev->claimed & HID_CLAIMED_HIDRAW)
1629c4c259bcSJiri Kosina 		hidraw_disconnect(hdev);
1630c4c259bcSJiri Kosina }
1631c4c259bcSJiri Kosina EXPORT_SYMBOL_GPL(hid_disconnect);
1632c4c259bcSJiri Kosina 
163300315e4fSJiri Kosina /*
163400315e4fSJiri Kosina  * A list of devices for which there is a specialized driver on HID bus.
163500315e4fSJiri Kosina  *
163600315e4fSJiri Kosina  * Please note that for multitouch devices (driven by hid-multitouch driver),
163700315e4fSJiri Kosina  * there is a proper autodetection and autoloading in place (based on presence
163800315e4fSJiri Kosina  * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
163900315e4fSJiri Kosina  * as we are doing the right thing in hid_scan_usage().
164083499b52SAlexander Holler  *
164183499b52SAlexander Holler  * Autodetection for (USB) HID sensor hubs exists too. If a collection of type
164283499b52SAlexander Holler  * physical is found inside a usage page of type sensor, hid-sensor-hub will be
164383499b52SAlexander Holler  * used as a driver. See hid_scan_report().
164400315e4fSJiri Kosina  */
1645ce06b9d6SDmitry Torokhov static const struct hid_device_id hid_have_special_driver[] = {
164614a21cd4SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
164714a21cd4SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1648b7e1b203SLech Perczak 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1649c0dbcc33SSergei Kolzun 	{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1650e17f5d76STristan Rice 	{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) },
16518c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1652128537ceSMichael Poole 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1653a462230eSChase Douglas 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
16548c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
16558c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
16568c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
16578c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
16588c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
16598c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
16608c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
16618c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
16628c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
16638c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
16648c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1665fef3f571SRyan Finnie 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1666fef3f571SRyan Finnie 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1667fef3f571SRyan Finnie 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
16688c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
16698c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
16708c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
16718c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
16728c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
16738c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
16749a4a5574SBenjamin Tissoires 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
16759a4a5574SBenjamin Tissoires 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
16769a4a5574SBenjamin Tissoires 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
16779a4a5574SBenjamin Tissoires 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
16789a4a5574SBenjamin Tissoires 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
1679ee8a1a0aSJan Scholz 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1680ee8a1a0aSJan Scholz 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1681ee8a1a0aSJan Scholz 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
16828c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
16838c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
16848c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
16858c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
16868c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
16878c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1688a96d6ef3SHenrik Rydberg 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1689a96d6ef3SHenrik Rydberg 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1690a96d6ef3SHenrik Rydberg 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
169199b9f758SEdgar (gimli) Hucek 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
169299b9f758SEdgar (gimli) Hucek 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
169399b9f758SEdgar (gimli) Hucek 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
169499b9f758SEdgar (gimli) Hucek 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
169599b9f758SEdgar (gimli) Hucek 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
169699b9f758SEdgar (gimli) Hucek 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
169747340bd9SAndy Botting 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
169847340bd9SAndy Botting 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
169947340bd9SAndy Botting 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1700213f9da8SGökçen Eraslan 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1701213f9da8SGökçen Eraslan 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1702213f9da8SGökçen Eraslan 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
17034a4c8799SDan Bastone 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
17044a4c8799SDan Bastone 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
17054a4c8799SDan Bastone 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1706f6f554f0SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1707f6f554f0SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1708f6f554f0SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1709d762cc29SNobuhiro Iwamatsu 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1710d762cc29SNobuhiro Iwamatsu 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1711d762cc29SNobuhiro Iwamatsu 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1712b2e6ad7dSRyan Bourgeois 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1713b2e6ad7dSRyan Bourgeois 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1714b2e6ad7dSRyan Bourgeois 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
17158d80da90SDirk Hohndel 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
17168d80da90SDirk Hohndel 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
17178d80da90SDirk Hohndel 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
17189d9a04eeSDmitry Torokhov 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
17199d9a04eeSDmitry Torokhov 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
17209d9a04eeSDmitry Torokhov 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
172123aeb61eSChristian Schuerer-Waldheim 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
172223aeb61eSChristian Schuerer-Waldheim 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
172323aeb61eSChristian Schuerer-Waldheim 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1724f9af7b9eSBen Hutchings 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
1725ad734bc1SAndreas Krist 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1726bd4a7ce1SHuei-Horng Yo 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS) },
17278c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
17288c19a515SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1729212da74dSJosenivaldo Benito Junior 	{ HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
1730b5635b12SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1731bf280628SWayne Thomas 	{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1732c3dc66deSJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
17333b239cd7SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
17341ce31b25SRaphaël Doursenaud 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1735fcfacfd3SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1736b9e4b1e0SDennis Kügler 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
17373596bb92SKeng-Yu Lin 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
17382d8767bbSCyrus Lien 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
17393a370ca1SDon Prince 	{ HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1740e932d817SDavid Barksdale 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_CP2112) },
17410f221320SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
17420f221320SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1743e8d0eab4SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
174476c9d8feSLionel Vaux 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
17450f221320SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
17463f866fbdSRichard Walmsley 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1747e05eefb9SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
174864b386eaSRichard Nauber 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1749d23efc19SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) },
1750d23efc19SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) },
175104561c5aSIgnaz Forster 	{ HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
17521f243e30SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
17535181e594SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1754578f3a35SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
17555181e594SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
175642859e0bSLukasz Lubojanski 	{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1757949f8fefSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
17581e093206SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1759c2fd1a4eSCory Maccarrone 	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1760d946e65eSAnssi Hannula 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1761ff9bf5a2STom Harwood 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
176240d3597fSJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
176340d3597fSJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
1764274be3ebSKharlamov Alexey 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070) },
1765f1a4914bSAnders F. U. Kiær 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
17667da7cbbbSAnders F. U. Kiær 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
176768e353feSMartin Rusko 	{ HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) },
1768aaca9cc0SMichael Karcher 	{ HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
17694ddfe028SBastien Nocera 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
1770fdf93aa3SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1771177900e8SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
17723685c18eSBenjamin Tissoires 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
17734a2c94c9SBenjamin Tissoires 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_MANTICORE) },
17740adb9c2cSBenjamin Tissoires 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
177579422741SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
177622ca20b2SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
177722ca20b2SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
177822ca20b2SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
1779b5635b12SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
178075b07022SChris Schlund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1781aad932e7SAndres Freund #if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
1782c1dcad2dSBernhard Seibold 	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1783aad932e7SAndres Freund #endif
17845f22a799SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
17855f22a799SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
17865f22a799SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
17875f22a799SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
17885844c1cdSDavid Dillow 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
17895f22a799SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
17905f22a799SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
17915f22a799SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
17925f22a799SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
17935f22a799SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
17945f22a799SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
17955f22a799SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
17962c6118e4SHendrik Iben 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1797606bd0a8SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1798606bd0a8SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1799606bd0a8SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1800fd30ea8cSJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1801606bd0a8SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
180274f292caSGary Stein 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1803606bd0a8SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1804606bd0a8SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1805bd04363dSElias Vanderstuyft 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL) },
18065623a24aSJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1807e00ddc9bSMichal Malý 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1808243b706dSChristophe Borivant 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1809fdc6807fSPeter Gundermann 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
18100944e964SKonstantin Khlebnikov #if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1811534a7b8eSNestor Lopez Casado 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1812534a7b8eSNestor Lopez Casado 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
18130944e964SKonstantin Khlebnikov #endif
181432c88cbcSSimon Wood 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1815606bd0a8SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
181624985cf6SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
181724985cf6SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1818236db47cSBruno Prémont 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1819236db47cSBruno Prémont 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1820b580169aSJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
182178a849a6SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
182278a849a6SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
182389759e20SAdam Jiang 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) },
182478a849a6SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
182578a849a6SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1826f3b83d71SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
182778a849a6SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
18283faed1afSHans de Goede 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB) },
18293b8006e5SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
183094011f93SRafi Rubin 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
18316e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
18326e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
18336e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
18346e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
18356e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
18366e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
18376e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
18386e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
18396e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
18406e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
18416e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
18426e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
18436e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
18446e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
18456e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
18466e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
18476e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
18486e32819eSmicki 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1849270fdc07SHerton Ronaldo Krzesinski 	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1850cd9ec30dSJohnathon Harris 	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
18511e762532SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1852f6a04605STerry Lambert 	{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1853ca9bbdccSStefan Achatz #if IS_ENABLED(CONFIG_HID_ROCCAT)
1854e68cc603SStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1855d41c2a70SStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1856e078809dSStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
1857e078809dSStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
185847dbdbffSStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
18598936aa31SStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
1860a4be0ed3SStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
1861e078809dSStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
18620e70f97fSStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
18634424f616SStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
1864cb7cf3daSStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
18653fce2246SStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
18666f3a1936SStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK) },
18676f3a1936SStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW) },
18686f3a1936SStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) },
18696a2a6390SStefan Achatz 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
1870ca9bbdccSStefan Achatz #endif
18711e93674aSAndreas Hübner 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
1872980a3da6SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1873b355850bSDon Prince 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1874d586dca0SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1875f04d5140SColin Leitner 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) },
1876f04d5140SColin Leitner 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) },
18775844c1cdSDavid Dillow 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
1878bd28ce00SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
187935dca5b4SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1880f9ce7c28SBastien Nocera 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
18810bd88dd3SFrank Praznik 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
18820bd88dd3SFrank Praznik 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
1883cc6e0bbbSJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1884c1e0ac19SFernando Luis Vázquez Cao 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
188575dbb953SSimon Wood 	{ HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
188690231e7eSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
188730ba2fbdSVivien Didelot 	{ HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
1888daedb3d6SAnssi Hannula 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1889daedb3d6SAnssi Hannula 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
18907a84b133SRuben Aos Garralda 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
18917a84b133SRuben Aos Garralda 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1892daedb3d6SAnssi Hannula 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
18933ee8f0a2SMarkus Rathgeb 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1894daedb3d6SAnssi Hannula 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1895d65c3768SSimon Wood 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1896740363fbSJiri Kosina 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
189744ea35c1SJarod Wilson 	{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
1898f14f526dSLev Babiev 	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
189954001081SKees Bakker 	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1900711a680eSBruno Premont 	{ HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
190141fa9230SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1902f8a489ccSNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1903f8a489ccSNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1904f8a489ccSNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
19056be914f1SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1906d1257081SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
1907eb4e426aSNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
1908fac733f0SJussi Kivilinna 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
190942fc04e5SSean Young 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
1910ad395ccaSSean Young 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
19111bcc2067SSean Young 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
19121bcc2067SSean Young 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
19131bcc2067SSean Young 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1914ca2dcd40SBastien Nocera 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
191578761ff9SPrzemo Firszt 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
191672a46344SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
191700e7f964SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
19184fdc18d1SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
1919a786e83cSNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
192072a46344SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
19218f1acc32SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1922d2ee4dd9SNikolai Kondrashov 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
192374bc6953SStefan Kriwanek 	{ HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1924cb2c9e3fSOlivier Scherler 	{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
1925daedb3d6SAnssi Hannula 	{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1926daedb3d6SAnssi Hannula 	{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1927a9885c8fSDon Prince 	{ HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
19288c19a515SJiri Slaby 
192978a849a6SJiri Slaby 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
193002fb72a0SDavid Herrmann 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1931a33042faSDavid Herrmann 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
193285cdaf52SJiri Slaby 	{ }
193385cdaf52SJiri Slaby };
193485cdaf52SJiri Slaby 
19353a6f82f7SJiri Slaby struct hid_dynid {
19363a6f82f7SJiri Slaby 	struct list_head list;
19373a6f82f7SJiri Slaby 	struct hid_device_id id;
19383a6f82f7SJiri Slaby };
19393a6f82f7SJiri Slaby 
19403a6f82f7SJiri Slaby /**
19413a6f82f7SJiri Slaby  * store_new_id - add a new HID device ID to this driver and re-probe devices
19423a6f82f7SJiri Slaby  * @driver: target device driver
19433a6f82f7SJiri Slaby  * @buf: buffer for scanning device ID data
19443a6f82f7SJiri Slaby  * @count: input size
19453a6f82f7SJiri Slaby  *
19463a6f82f7SJiri Slaby  * Adds a new dynamic hid device ID to this driver,
19473a6f82f7SJiri Slaby  * and causes the driver to probe for all devices again.
19483a6f82f7SJiri Slaby  */
19493a6f82f7SJiri Slaby static ssize_t store_new_id(struct device_driver *drv, const char *buf,
19503a6f82f7SJiri Slaby 		size_t count)
19513a6f82f7SJiri Slaby {
19523a6f82f7SJiri Slaby 	struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
19533a6f82f7SJiri Slaby 	struct hid_dynid *dynid;
19543a6f82f7SJiri Slaby 	__u32 bus, vendor, product;
19553a6f82f7SJiri Slaby 	unsigned long driver_data = 0;
19563a6f82f7SJiri Slaby 	int ret;
19573a6f82f7SJiri Slaby 
19583a6f82f7SJiri Slaby 	ret = sscanf(buf, "%x %x %x %lx",
19593a6f82f7SJiri Slaby 			&bus, &vendor, &product, &driver_data);
19603a6f82f7SJiri Slaby 	if (ret < 3)
19613a6f82f7SJiri Slaby 		return -EINVAL;
19623a6f82f7SJiri Slaby 
19633a6f82f7SJiri Slaby 	dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
19643a6f82f7SJiri Slaby 	if (!dynid)
19653a6f82f7SJiri Slaby 		return -ENOMEM;
19663a6f82f7SJiri Slaby 
19673a6f82f7SJiri Slaby 	dynid->id.bus = bus;
19684d53b801SHenrik Rydberg 	dynid->id.group = HID_GROUP_ANY;
19693a6f82f7SJiri Slaby 	dynid->id.vendor = vendor;
19703a6f82f7SJiri Slaby 	dynid->id.product = product;
19713a6f82f7SJiri Slaby 	dynid->id.driver_data = driver_data;
19723a6f82f7SJiri Slaby 
19733a6f82f7SJiri Slaby 	spin_lock(&hdrv->dyn_lock);
19743a6f82f7SJiri Slaby 	list_add_tail(&dynid->list, &hdrv->dyn_list);
19753a6f82f7SJiri Slaby 	spin_unlock(&hdrv->dyn_lock);
19763a6f82f7SJiri Slaby 
19773a6f82f7SJiri Slaby 	ret = driver_attach(&hdrv->driver);
19783a6f82f7SJiri Slaby 
19793a6f82f7SJiri Slaby 	return ret ? : count;
19803a6f82f7SJiri Slaby }
19813a6f82f7SJiri Slaby static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
19823a6f82f7SJiri Slaby 
19833a6f82f7SJiri Slaby static void hid_free_dynids(struct hid_driver *hdrv)
19843a6f82f7SJiri Slaby {
19853a6f82f7SJiri Slaby 	struct hid_dynid *dynid, *n;
19863a6f82f7SJiri Slaby 
19873a6f82f7SJiri Slaby 	spin_lock(&hdrv->dyn_lock);
19883a6f82f7SJiri Slaby 	list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
19893a6f82f7SJiri Slaby 		list_del(&dynid->list);
19903a6f82f7SJiri Slaby 		kfree(dynid);
19913a6f82f7SJiri Slaby 	}
19923a6f82f7SJiri Slaby 	spin_unlock(&hdrv->dyn_lock);
19933a6f82f7SJiri Slaby }
19943a6f82f7SJiri Slaby 
19953a6f82f7SJiri Slaby static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
19963a6f82f7SJiri Slaby 		struct hid_driver *hdrv)
19973a6f82f7SJiri Slaby {
19983a6f82f7SJiri Slaby 	struct hid_dynid *dynid;
19993a6f82f7SJiri Slaby 
20003a6f82f7SJiri Slaby 	spin_lock(&hdrv->dyn_lock);
20013a6f82f7SJiri Slaby 	list_for_each_entry(dynid, &hdrv->dyn_list, list) {
20023a6f82f7SJiri Slaby 		if (hid_match_one_id(hdev, &dynid->id)) {
20033a6f82f7SJiri Slaby 			spin_unlock(&hdrv->dyn_lock);
20043a6f82f7SJiri Slaby 			return &dynid->id;
20053a6f82f7SJiri Slaby 		}
20063a6f82f7SJiri Slaby 	}
20073a6f82f7SJiri Slaby 	spin_unlock(&hdrv->dyn_lock);
20083a6f82f7SJiri Slaby 
20093a6f82f7SJiri Slaby 	return hid_match_id(hdev, hdrv->id_table);
20103a6f82f7SJiri Slaby }
20113a6f82f7SJiri Slaby 
201285cdaf52SJiri Slaby static int hid_bus_match(struct device *dev, struct device_driver *drv)
201385cdaf52SJiri Slaby {
201485cdaf52SJiri Slaby 	struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
201585cdaf52SJiri Slaby 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
201685cdaf52SJiri Slaby 
2017070748edSHenrik Rydberg 	return hid_match_device(hdev, hdrv) != NULL;
201885cdaf52SJiri Slaby }
201985cdaf52SJiri Slaby 
202085cdaf52SJiri Slaby static int hid_device_probe(struct device *dev)
202185cdaf52SJiri Slaby {
202285cdaf52SJiri Slaby 	struct hid_driver *hdrv = container_of(dev->driver,
202385cdaf52SJiri Slaby 			struct hid_driver, driver);
202485cdaf52SJiri Slaby 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
202585cdaf52SJiri Slaby 	const struct hid_device_id *id;
202685cdaf52SJiri Slaby 	int ret = 0;
202785cdaf52SJiri Slaby 
20284ea54542SDavid Herrmann 	if (down_interruptible(&hdev->driver_lock))
20294ea54542SDavid Herrmann 		return -EINTR;
2030c849a614SAndrew de los Reyes 	if (down_interruptible(&hdev->driver_input_lock)) {
2031c849a614SAndrew de los Reyes 		ret = -EINTR;
2032c849a614SAndrew de los Reyes 		goto unlock_driver_lock;
2033c849a614SAndrew de los Reyes 	}
2034c849a614SAndrew de los Reyes 	hdev->io_started = false;
20354ea54542SDavid Herrmann 
203685cdaf52SJiri Slaby 	if (!hdev->driver) {
20373a6f82f7SJiri Slaby 		id = hid_match_device(hdev, hdrv);
2038ba623a77SDan Carpenter 		if (id == NULL) {
2039ba623a77SDan Carpenter 			ret = -ENODEV;
2040ba623a77SDan Carpenter 			goto unlock;
2041ba623a77SDan Carpenter 		}
2042c500c971SJiri Slaby 
204385cdaf52SJiri Slaby 		hdev->driver = hdrv;
2044c500c971SJiri Slaby 		if (hdrv->probe) {
2045c500c971SJiri Slaby 			ret = hdrv->probe(hdev, id);
2046c500c971SJiri Slaby 		} else { /* default probe */
2047a7197c2eSHenrik Rydberg 			ret = hid_open_report(hdev);
2048c500c971SJiri Slaby 			if (!ret)
204993c10132SJiri Slaby 				ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
2050c500c971SJiri Slaby 		}
2051a7197c2eSHenrik Rydberg 		if (ret) {
2052a7197c2eSHenrik Rydberg 			hid_close_report(hdev);
2053c500c971SJiri Slaby 			hdev->driver = NULL;
205485cdaf52SJiri Slaby 		}
2055a7197c2eSHenrik Rydberg 	}
2056ba623a77SDan Carpenter unlock:
2057c849a614SAndrew de los Reyes 	if (!hdev->io_started)
2058c849a614SAndrew de los Reyes 		up(&hdev->driver_input_lock);
2059c849a614SAndrew de los Reyes unlock_driver_lock:
20604ea54542SDavid Herrmann 	up(&hdev->driver_lock);
206185cdaf52SJiri Slaby 	return ret;
206285cdaf52SJiri Slaby }
206385cdaf52SJiri Slaby 
206485cdaf52SJiri Slaby static int hid_device_remove(struct device *dev)
206585cdaf52SJiri Slaby {
206685cdaf52SJiri Slaby 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
20674ea54542SDavid Herrmann 	struct hid_driver *hdrv;
2068c849a614SAndrew de los Reyes 	int ret = 0;
206985cdaf52SJiri Slaby 
20704ea54542SDavid Herrmann 	if (down_interruptible(&hdev->driver_lock))
20714ea54542SDavid Herrmann 		return -EINTR;
2072c849a614SAndrew de los Reyes 	if (down_interruptible(&hdev->driver_input_lock)) {
2073c849a614SAndrew de los Reyes 		ret = -EINTR;
2074c849a614SAndrew de los Reyes 		goto unlock_driver_lock;
2075c849a614SAndrew de los Reyes 	}
2076c849a614SAndrew de los Reyes 	hdev->io_started = false;
20774ea54542SDavid Herrmann 
20784ea54542SDavid Herrmann 	hdrv = hdev->driver;
207985cdaf52SJiri Slaby 	if (hdrv) {
208085cdaf52SJiri Slaby 		if (hdrv->remove)
208185cdaf52SJiri Slaby 			hdrv->remove(hdev);
2082c500c971SJiri Slaby 		else /* default remove */
2083c500c971SJiri Slaby 			hid_hw_stop(hdev);
2084a7197c2eSHenrik Rydberg 		hid_close_report(hdev);
208585cdaf52SJiri Slaby 		hdev->driver = NULL;
208685cdaf52SJiri Slaby 	}
208785cdaf52SJiri Slaby 
2088c849a614SAndrew de los Reyes 	if (!hdev->io_started)
2089c849a614SAndrew de los Reyes 		up(&hdev->driver_input_lock);
2090c849a614SAndrew de los Reyes unlock_driver_lock:
20914ea54542SDavid Herrmann 	up(&hdev->driver_lock);
2092c849a614SAndrew de los Reyes 	return ret;
209385cdaf52SJiri Slaby }
209485cdaf52SJiri Slaby 
20954d53b801SHenrik Rydberg static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
20964d53b801SHenrik Rydberg 			     char *buf)
20974d53b801SHenrik Rydberg {
20984d53b801SHenrik Rydberg 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
20994d53b801SHenrik Rydberg 	int len;
21004d53b801SHenrik Rydberg 
21014d53b801SHenrik Rydberg 	len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
21024d53b801SHenrik Rydberg 		       hdev->bus, hdev->group, hdev->vendor, hdev->product);
21034d53b801SHenrik Rydberg 
21044d53b801SHenrik Rydberg 	return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
21054d53b801SHenrik Rydberg }
21060d4260e0SGreg Kroah-Hartman static DEVICE_ATTR_RO(modalias);
21074d53b801SHenrik Rydberg 
21080d4260e0SGreg Kroah-Hartman static struct attribute *hid_dev_attrs[] = {
21090d4260e0SGreg Kroah-Hartman 	&dev_attr_modalias.attr,
21100d4260e0SGreg Kroah-Hartman 	NULL,
21114d53b801SHenrik Rydberg };
21120d4260e0SGreg Kroah-Hartman ATTRIBUTE_GROUPS(hid_dev);
21134d53b801SHenrik Rydberg 
211485cdaf52SJiri Slaby static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
211585cdaf52SJiri Slaby {
211685cdaf52SJiri Slaby 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
211785cdaf52SJiri Slaby 
211885cdaf52SJiri Slaby 	if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
211985cdaf52SJiri Slaby 			hdev->bus, hdev->vendor, hdev->product))
212085cdaf52SJiri Slaby 		return -ENOMEM;
212185cdaf52SJiri Slaby 
212285cdaf52SJiri Slaby 	if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
212385cdaf52SJiri Slaby 		return -ENOMEM;
212485cdaf52SJiri Slaby 
212585cdaf52SJiri Slaby 	if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
212685cdaf52SJiri Slaby 		return -ENOMEM;
212785cdaf52SJiri Slaby 
212885cdaf52SJiri Slaby 	if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
212985cdaf52SJiri Slaby 		return -ENOMEM;
213085cdaf52SJiri Slaby 
21314d53b801SHenrik Rydberg 	if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
21324d53b801SHenrik Rydberg 			   hdev->bus, hdev->group, hdev->vendor, hdev->product))
213385cdaf52SJiri Slaby 		return -ENOMEM;
213485cdaf52SJiri Slaby 
213585cdaf52SJiri Slaby 	return 0;
213685cdaf52SJiri Slaby }
213785cdaf52SJiri Slaby 
213885cdaf52SJiri Slaby static struct bus_type hid_bus_type = {
213985cdaf52SJiri Slaby 	.name		= "hid",
21400d4260e0SGreg Kroah-Hartman 	.dev_groups	= hid_dev_groups,
214185cdaf52SJiri Slaby 	.match		= hid_bus_match,
214285cdaf52SJiri Slaby 	.probe		= hid_device_probe,
214385cdaf52SJiri Slaby 	.remove		= hid_device_remove,
214485cdaf52SJiri Slaby 	.uevent		= hid_uevent,
214585cdaf52SJiri Slaby };
214685cdaf52SJiri Slaby 
2147bae7eb33SJiri Kosina /* a list of devices that shouldn't be handled by HID core at all */
2148d458a9dfSJiri Slaby static const struct hid_device_id hid_ignore_list[] = {
2149d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
2150d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
2151d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
2152d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
2153d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
2154d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
2155d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
2156d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
2157d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
2158d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
2159d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
2160d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
216177f720b7SStephane Chatty 	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
216277f720b7SStephane Chatty 	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
216362a56582SAlexey Klimov 	{ HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
216411030183SHans de Goede 	{ HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
2165d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
2166d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
2167d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
2168adc23259SDinesh Ram 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI4713) },
2169d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
2170d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
2171d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
21725f6108cfSAlexey Klimov 	{ HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
2173d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
2174d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
217573bc7d31SMelchior FRANZ 	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
2176789aaa2eSDan Delaney 	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
2177d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
217870c66567SPetr Štetiar 	{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
2179df506f2cSPetr Štetiar 	{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
2180b1807719SBenjamin Tissoires 	{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
2181d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
2182d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
2183d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
2184d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
2185d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
2186d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
2187d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
2188d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
2189d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
2190d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
2191d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
2192d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
2193d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
2194d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
2195d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
2196d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
21978e2ce73eSHans de Goede 	{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
2198d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
2199d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
2200d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
2201d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
2202d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
2203d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
2204d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
2205d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
2206d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
2207d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
2208d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
2209d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
2210d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
2211d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
2212d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
2213d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
2214d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
2215d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
2216d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
2217d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
2218d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
2219d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
2220d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
2221d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
2222d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
2223d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
2224d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
2225d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
2226d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
2227d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
2228d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
2229d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
2230d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
2231d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
2232d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
2233d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
2234d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
2235d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
2236d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
2237d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
2238d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
2239d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
2240d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
2241d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
2242d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
2243d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
2244d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
224531b9779cSVincent Palatin 	{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) },
224631b9779cSVincent Palatin 	{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) },
2247d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
2248c91c21c5SAlexey Klimov 	{ HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
2249d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
2250eb8141ccSLamarque Vieira Souza 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
2251d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
2252ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
2253d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
2254ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
2255d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
2256ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
2257ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
2258ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
2259ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
2260ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
2261ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
2262d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
2263d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
2264d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
2265ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2266ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2267ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
2268d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2269d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2270ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
2271d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2272d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2273d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2274d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2275d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2276ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2277ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2278ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2279ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2280ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2281ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2282ce97cac8SMichael Hund 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
22833ffb62cbSYuri Khan 	{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
2284d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2285d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
2286d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2287d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2288d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2289d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2290d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2291d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2292d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2293d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2294d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2295d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2296d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2297d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2298d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2299d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2300d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2301d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2302d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
23034cfae3e8SHenning Glawe 	{ HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
230435cfd1d9SMichael Tokarev 	{ HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
23058491ee10SJan Steinhoff #if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
23068491ee10SJan Steinhoff 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
23078491ee10SJan Steinhoff 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
23088491ee10SJan Steinhoff 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
23098491ee10SJan Steinhoff 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
23108491ee10SJan Steinhoff 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
23118491ee10SJan Steinhoff 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
23128491ee10SJan Steinhoff 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
23138491ee10SJan Steinhoff 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
23148491ee10SJan Steinhoff #endif
2315d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
2316d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
2317d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
2318d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
2319d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
2320d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
2321d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
2322d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
2323d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
2324d458a9dfSJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2325759db9eaSChristian Vogel 	{ HID_USB_DEVICE(USB_VENDOR_ID_RISO_KAGAKU, USB_DEVICE_ID_RI_KA_WEBMAIL) },
2326d458a9dfSJiri Slaby 	{ }
2327d458a9dfSJiri Slaby };
2328d458a9dfSJiri Slaby 
2329b4d8e473SJiri Slaby /**
2330b4d8e473SJiri Slaby  * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2331b4d8e473SJiri Slaby  *
2332b4d8e473SJiri Slaby  * There are composite devices for which we want to ignore only a certain
2333b4d8e473SJiri Slaby  * interface. This is a list of devices for which only the mouse interface will
2334b4d8e473SJiri Slaby  * be ignored. This allows a dedicated driver to take care of the interface.
2335b4d8e473SJiri Slaby  */
2336b4d8e473SJiri Slaby static const struct hid_device_id hid_mouse_ignore_list[] = {
2337b4d8e473SJiri Slaby 	/* appletouch driver */
2338b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2339b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2340b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2341b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2342b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2343b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2344b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2345b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2346b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2347b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2348b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2349b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2350b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2351b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2352b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2353b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2354b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2355b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2356b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2357b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2358ac26fca3SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2359ac26fca3SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2360ac26fca3SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
236199b9f758SEdgar (gimli) Hucek 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
236299b9f758SEdgar (gimli) Hucek 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
236399b9f758SEdgar (gimli) Hucek 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
236499b9f758SEdgar (gimli) Hucek 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
236599b9f758SEdgar (gimli) Hucek 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
236699b9f758SEdgar (gimli) Hucek 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
236747340bd9SAndy Botting 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
236847340bd9SAndy Botting 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
236947340bd9SAndy Botting 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2370213f9da8SGökçen Eraslan 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2371213f9da8SGökçen Eraslan 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2372213f9da8SGökçen Eraslan 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
23734b086910SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
23744b086910SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
23754b086910SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
23764b086910SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
23774b086910SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
23784b086910SJiri Kosina 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2379b2e6ad7dSRyan Bourgeois 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2380b2e6ad7dSRyan Bourgeois 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2381b2e6ad7dSRyan Bourgeois 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
23828d80da90SDirk Hohndel 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
23838d80da90SDirk Hohndel 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
23848d80da90SDirk Hohndel 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
23859d9a04eeSDmitry Torokhov 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
23869d9a04eeSDmitry Torokhov 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
23879d9a04eeSDmitry Torokhov 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
2388b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2389b4d8e473SJiri Slaby 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2390b4d8e473SJiri Slaby 	{ }
2391b4d8e473SJiri Slaby };
2392b4d8e473SJiri Slaby 
23934529eefaSLamarque V. Souza bool hid_ignore(struct hid_device *hdev)
2394d458a9dfSJiri Slaby {
23954529eefaSLamarque V. Souza 	if (hdev->quirks & HID_QUIRK_NO_IGNORE)
23964529eefaSLamarque V. Souza 		return false;
23974529eefaSLamarque V. Souza 	if (hdev->quirks & HID_QUIRK_IGNORE)
23984529eefaSLamarque V. Souza 		return true;
23994529eefaSLamarque V. Souza 
2400d458a9dfSJiri Slaby 	switch (hdev->vendor) {
2401d458a9dfSJiri Slaby 	case USB_VENDOR_ID_CODEMERCS:
2402d458a9dfSJiri Slaby 		/* ignore all Code Mercenaries IOWarrior devices */
2403d458a9dfSJiri Slaby 		if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2404d458a9dfSJiri Slaby 				hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2405d458a9dfSJiri Slaby 			return true;
2406d458a9dfSJiri Slaby 		break;
2407d458a9dfSJiri Slaby 	case USB_VENDOR_ID_LOGITECH:
2408d458a9dfSJiri Slaby 		if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2409d458a9dfSJiri Slaby 				hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2410d458a9dfSJiri Slaby 			return true;
241165dd3b69SHans Verkuil 		/*
241265dd3b69SHans Verkuil 		 * The Keene FM transmitter USB device has the same USB ID as
241365dd3b69SHans Verkuil 		 * the Logitech AudioHub Speaker, but it should ignore the hid.
241465dd3b69SHans Verkuil 		 * Check if the name is that of the Keene device.
241565dd3b69SHans Verkuil 		 * For reference: the name of the AudioHub is
241665dd3b69SHans Verkuil 		 * "HOLTEK  AudioHub Speaker".
241765dd3b69SHans Verkuil 		 */
241865dd3b69SHans Verkuil 		if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
241965dd3b69SHans Verkuil 			!strcmp(hdev->name, "HOLTEK  B-LINK USB Audio  "))
242065dd3b69SHans Verkuil 				return true;
2421d458a9dfSJiri Slaby 		break;
242231f7fd79SJarod Wilson 	case USB_VENDOR_ID_SOUNDGRAPH:
242331f7fd79SJarod Wilson 		if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
242431f7fd79SJarod Wilson 		    hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
242531f7fd79SJarod Wilson 			return true;
242631f7fd79SJarod Wilson 		break;
2427bba5394aSXing Wei 	case USB_VENDOR_ID_HANWANG:
2428bba5394aSXing Wei 		if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2429bba5394aSXing Wei 		    hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2430bba5394aSXing Wei 			return true;
2431bba5394aSXing Wei 		break;
24326dc1418eSTomoki Sekiyama 	case USB_VENDOR_ID_JESS:
24336dc1418eSTomoki Sekiyama 		if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
24346dc1418eSTomoki Sekiyama 				hdev->type == HID_TYPE_USBNONE)
24356dc1418eSTomoki Sekiyama 			return true;
24366dc1418eSTomoki Sekiyama 		break;
243730b6b7d8SIan Abbott 	case USB_VENDOR_ID_VELLEMAN:
243830b6b7d8SIan Abbott 		/* These are not HID devices.  They are handled by comedi. */
243930b6b7d8SIan Abbott 		if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST &&
244030b6b7d8SIan Abbott 		     hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) ||
244130b6b7d8SIan Abbott 		    (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST &&
244230b6b7d8SIan Abbott 		     hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST))
244330b6b7d8SIan Abbott 			return true;
244430b6b7d8SIan Abbott 		break;
24455b4617d8SAlexey Klimov 	case USB_VENDOR_ID_ATMEL_V_USB:
24465b4617d8SAlexey Klimov 		/* Masterkit MA901 usb radio based on Atmel tiny85 chip and
24475b4617d8SAlexey Klimov 		 * it has the same USB ID as many Atmel V-USB devices. This
24485b4617d8SAlexey Klimov 		 * usb radio is handled by radio-ma901.c driver so we want
24495b4617d8SAlexey Klimov 		 * ignore the hid. Check the name, bus, product and ignore
24505b4617d8SAlexey Klimov 		 * if we have MA901 usb radio.
24515b4617d8SAlexey Klimov 		 */
24525b4617d8SAlexey Klimov 		if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB &&
24535b4617d8SAlexey Klimov 			hdev->bus == BUS_USB &&
24545b4617d8SAlexey Klimov 			strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0)
24555b4617d8SAlexey Klimov 			return true;
24565b4617d8SAlexey Klimov 		break;
2457d458a9dfSJiri Slaby 	}
2458d458a9dfSJiri Slaby 
2459b4d8e473SJiri Slaby 	if (hdev->type == HID_TYPE_USBMOUSE &&
2460b4d8e473SJiri Slaby 			hid_match_id(hdev, hid_mouse_ignore_list))
2461b4d8e473SJiri Slaby 		return true;
2462b4d8e473SJiri Slaby 
2463d458a9dfSJiri Slaby 	return !!hid_match_id(hdev, hid_ignore_list);
2464d458a9dfSJiri Slaby }
24654529eefaSLamarque V. Souza EXPORT_SYMBOL_GPL(hid_ignore);
2466d458a9dfSJiri Slaby 
246785cdaf52SJiri Slaby int hid_add_device(struct hid_device *hdev)
246885cdaf52SJiri Slaby {
246985cdaf52SJiri Slaby 	static atomic_t id = ATOMIC_INIT(0);
247085cdaf52SJiri Slaby 	int ret;
247185cdaf52SJiri Slaby 
247285cdaf52SJiri Slaby 	if (WARN_ON(hdev->status & HID_STAT_ADDED))
247385cdaf52SJiri Slaby 		return -EBUSY;
247485cdaf52SJiri Slaby 
2475d458a9dfSJiri Slaby 	/* we need to kill them here, otherwise they will stay allocated to
2476d458a9dfSJiri Slaby 	 * wait for coming driver */
24774529eefaSLamarque V. Souza 	if (hid_ignore(hdev))
2478d458a9dfSJiri Slaby 		return -ENODEV;
2479d458a9dfSJiri Slaby 
2480a7197c2eSHenrik Rydberg 	/*
24813c86726cSBenjamin Tissoires 	 * Check for the mandatory transport channel.
24823c86726cSBenjamin Tissoires 	 */
24833c86726cSBenjamin Tissoires 	 if (!hdev->ll_driver->raw_request) {
24843c86726cSBenjamin Tissoires 		hid_err(hdev, "transport driver missing .raw_request()\n");
24853c86726cSBenjamin Tissoires 		return -EINVAL;
24863c86726cSBenjamin Tissoires 	 }
24873c86726cSBenjamin Tissoires 
24883c86726cSBenjamin Tissoires 	/*
2489a7197c2eSHenrik Rydberg 	 * Read the device report descriptor once and use as template
2490a7197c2eSHenrik Rydberg 	 * for the driver-specific modifications.
2491a7197c2eSHenrik Rydberg 	 */
2492a7197c2eSHenrik Rydberg 	ret = hdev->ll_driver->parse(hdev);
2493a7197c2eSHenrik Rydberg 	if (ret)
2494a7197c2eSHenrik Rydberg 		return ret;
2495a7197c2eSHenrik Rydberg 	if (!hdev->dev_rdesc)
2496a7197c2eSHenrik Rydberg 		return -ENODEV;
2497a7197c2eSHenrik Rydberg 
2498734c6609SHenrik Rydberg 	/*
2499734c6609SHenrik Rydberg 	 * Scan generic devices for group information
2500734c6609SHenrik Rydberg 	 */
2501734c6609SHenrik Rydberg 	if (hid_ignore_special_drivers ||
2502734c6609SHenrik Rydberg 	    !hid_match_id(hdev, hid_have_special_driver)) {
2503734c6609SHenrik Rydberg 		ret = hid_scan_report(hdev);
2504734c6609SHenrik Rydberg 		if (ret)
2505734c6609SHenrik Rydberg 			hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2506734c6609SHenrik Rydberg 	}
2507734c6609SHenrik Rydberg 
25086bbe586fSKay Sievers 	/* XXX hack, any other cleaner solution after the driver core
25096bbe586fSKay Sievers 	 * is converted to allow more than 20 bytes as the device name? */
25106bbe586fSKay Sievers 	dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
251185cdaf52SJiri Slaby 		     hdev->vendor, hdev->product, atomic_inc_return(&id));
251285cdaf52SJiri Slaby 
25134da361b6SBruno Prémont 	hid_debug_register(hdev, dev_name(&hdev->dev));
251485cdaf52SJiri Slaby 	ret = device_add(&hdev->dev);
251585cdaf52SJiri Slaby 	if (!ret)
251685cdaf52SJiri Slaby 		hdev->status |= HID_STAT_ADDED;
25174da361b6SBruno Prémont 	else
25184da361b6SBruno Prémont 		hid_debug_unregister(hdev);
2519a635f9ddSJiri Kosina 
252085cdaf52SJiri Slaby 	return ret;
252185cdaf52SJiri Slaby }
252285cdaf52SJiri Slaby EXPORT_SYMBOL_GPL(hid_add_device);
252385cdaf52SJiri Slaby 
252485cdaf52SJiri Slaby /**
252585cdaf52SJiri Slaby  * hid_allocate_device - allocate new hid device descriptor
252685cdaf52SJiri Slaby  *
252785cdaf52SJiri Slaby  * Allocate and initialize hid device, so that hid_destroy_device might be
252885cdaf52SJiri Slaby  * used to free it.
252985cdaf52SJiri Slaby  *
253085cdaf52SJiri Slaby  * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
253185cdaf52SJiri Slaby  * error value.
253285cdaf52SJiri Slaby  */
253385cdaf52SJiri Slaby struct hid_device *hid_allocate_device(void)
253485cdaf52SJiri Slaby {
253585cdaf52SJiri Slaby 	struct hid_device *hdev;
253685cdaf52SJiri Slaby 	int ret = -ENOMEM;
253785cdaf52SJiri Slaby 
253885cdaf52SJiri Slaby 	hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
253985cdaf52SJiri Slaby 	if (hdev == NULL)
254085cdaf52SJiri Slaby 		return ERR_PTR(ret);
254185cdaf52SJiri Slaby 
254285cdaf52SJiri Slaby 	device_initialize(&hdev->dev);
254385cdaf52SJiri Slaby 	hdev->dev.release = hid_device_release;
254485cdaf52SJiri Slaby 	hdev->dev.bus = &hid_bus_type;
254585cdaf52SJiri Slaby 
2546a7197c2eSHenrik Rydberg 	hid_close_report(hdev);
254785cdaf52SJiri Slaby 
2548cd667ce2SJiri Kosina 	init_waitqueue_head(&hdev->debug_wait);
2549cd667ce2SJiri Kosina 	INIT_LIST_HEAD(&hdev->debug_list);
25501deb9d34SJiri Kosina 	spin_lock_init(&hdev->debug_list_lock);
25514ea54542SDavid Herrmann 	sema_init(&hdev->driver_lock, 1);
2552c849a614SAndrew de los Reyes 	sema_init(&hdev->driver_input_lock, 1);
2553cd667ce2SJiri Kosina 
255485cdaf52SJiri Slaby 	return hdev;
255585cdaf52SJiri Slaby }
255685cdaf52SJiri Slaby EXPORT_SYMBOL_GPL(hid_allocate_device);
255785cdaf52SJiri Slaby 
255885cdaf52SJiri Slaby static void hid_remove_device(struct hid_device *hdev)
255985cdaf52SJiri Slaby {
256085cdaf52SJiri Slaby 	if (hdev->status & HID_STAT_ADDED) {
256185cdaf52SJiri Slaby 		device_del(&hdev->dev);
2562a635f9ddSJiri Kosina 		hid_debug_unregister(hdev);
256385cdaf52SJiri Slaby 		hdev->status &= ~HID_STAT_ADDED;
256485cdaf52SJiri Slaby 	}
2565a7197c2eSHenrik Rydberg 	kfree(hdev->dev_rdesc);
2566a7197c2eSHenrik Rydberg 	hdev->dev_rdesc = NULL;
2567a7197c2eSHenrik Rydberg 	hdev->dev_rsize = 0;
256885cdaf52SJiri Slaby }
256985cdaf52SJiri Slaby 
257085cdaf52SJiri Slaby /**
257185cdaf52SJiri Slaby  * hid_destroy_device - free previously allocated device
257285cdaf52SJiri Slaby  *
257385cdaf52SJiri Slaby  * @hdev: hid device
257485cdaf52SJiri Slaby  *
257585cdaf52SJiri Slaby  * If you allocate hid_device through hid_allocate_device, you should ever
257685cdaf52SJiri Slaby  * free by this function.
257785cdaf52SJiri Slaby  */
257885cdaf52SJiri Slaby void hid_destroy_device(struct hid_device *hdev)
257985cdaf52SJiri Slaby {
258085cdaf52SJiri Slaby 	hid_remove_device(hdev);
258185cdaf52SJiri Slaby 	put_device(&hdev->dev);
258285cdaf52SJiri Slaby }
258385cdaf52SJiri Slaby EXPORT_SYMBOL_GPL(hid_destroy_device);
258485cdaf52SJiri Slaby 
258585cdaf52SJiri Slaby int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
258685cdaf52SJiri Slaby 		const char *mod_name)
258785cdaf52SJiri Slaby {
25883a6f82f7SJiri Slaby 	int ret;
25893a6f82f7SJiri Slaby 
259085cdaf52SJiri Slaby 	hdrv->driver.name = hdrv->name;
259185cdaf52SJiri Slaby 	hdrv->driver.bus = &hid_bus_type;
259285cdaf52SJiri Slaby 	hdrv->driver.owner = owner;
259385cdaf52SJiri Slaby 	hdrv->driver.mod_name = mod_name;
259485cdaf52SJiri Slaby 
25953a6f82f7SJiri Slaby 	INIT_LIST_HEAD(&hdrv->dyn_list);
25963a6f82f7SJiri Slaby 	spin_lock_init(&hdrv->dyn_lock);
25973a6f82f7SJiri Slaby 
25983a6f82f7SJiri Slaby 	ret = driver_register(&hdrv->driver);
25993a6f82f7SJiri Slaby 	if (ret)
26003a6f82f7SJiri Slaby 		return ret;
26013a6f82f7SJiri Slaby 
26023a6f82f7SJiri Slaby 	ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
26033a6f82f7SJiri Slaby 	if (ret)
26043a6f82f7SJiri Slaby 		driver_unregister(&hdrv->driver);
26053a6f82f7SJiri Slaby 
26063a6f82f7SJiri Slaby 	return ret;
260785cdaf52SJiri Slaby }
260885cdaf52SJiri Slaby EXPORT_SYMBOL_GPL(__hid_register_driver);
260985cdaf52SJiri Slaby 
261085cdaf52SJiri Slaby void hid_unregister_driver(struct hid_driver *hdrv)
261185cdaf52SJiri Slaby {
26123a6f82f7SJiri Slaby 	driver_remove_file(&hdrv->driver, &driver_attr_new_id);
261385cdaf52SJiri Slaby 	driver_unregister(&hdrv->driver);
26143a6f82f7SJiri Slaby 	hid_free_dynids(hdrv);
261585cdaf52SJiri Slaby }
261685cdaf52SJiri Slaby EXPORT_SYMBOL_GPL(hid_unregister_driver);
261785cdaf52SJiri Slaby 
26180361a28dSOliver Neukum int hid_check_keys_pressed(struct hid_device *hid)
26190361a28dSOliver Neukum {
26200361a28dSOliver Neukum 	struct hid_input *hidinput;
26210361a28dSOliver Neukum 	int i;
26220361a28dSOliver Neukum 
2623e5288eb5SJiri Kosina 	if (!(hid->claimed & HID_CLAIMED_INPUT))
2624e5288eb5SJiri Kosina 		return 0;
2625e5288eb5SJiri Kosina 
26260361a28dSOliver Neukum 	list_for_each_entry(hidinput, &hid->inputs, list) {
26270361a28dSOliver Neukum 		for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
26280361a28dSOliver Neukum 			if (hidinput->input->key[i])
26290361a28dSOliver Neukum 				return 1;
26300361a28dSOliver Neukum 	}
26310361a28dSOliver Neukum 
26320361a28dSOliver Neukum 	return 0;
26330361a28dSOliver Neukum }
26340361a28dSOliver Neukum 
26350361a28dSOliver Neukum EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
26360361a28dSOliver Neukum 
263786166b7bSJiri Kosina static int __init hid_init(void)
263886166b7bSJiri Kosina {
263985cdaf52SJiri Slaby 	int ret;
264085cdaf52SJiri Slaby 
2641a635f9ddSJiri Kosina 	if (hid_debug)
26424291ee30SJoe Perches 		pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
26434291ee30SJoe Perches 			"debugfs is now used for inspecting the device (report descriptor, reports)\n");
2644a635f9ddSJiri Kosina 
264585cdaf52SJiri Slaby 	ret = bus_register(&hid_bus_type);
264685cdaf52SJiri Slaby 	if (ret) {
26474291ee30SJoe Perches 		pr_err("can't register hid bus\n");
264885cdaf52SJiri Slaby 		goto err;
264985cdaf52SJiri Slaby 	}
265085cdaf52SJiri Slaby 
265185cdaf52SJiri Slaby 	ret = hidraw_init();
265285cdaf52SJiri Slaby 	if (ret)
265385cdaf52SJiri Slaby 		goto err_bus;
265485cdaf52SJiri Slaby 
2655a635f9ddSJiri Kosina 	hid_debug_init();
2656a635f9ddSJiri Kosina 
265785cdaf52SJiri Slaby 	return 0;
265885cdaf52SJiri Slaby err_bus:
265985cdaf52SJiri Slaby 	bus_unregister(&hid_bus_type);
266085cdaf52SJiri Slaby err:
266185cdaf52SJiri Slaby 	return ret;
266286166b7bSJiri Kosina }
266386166b7bSJiri Kosina 
266486166b7bSJiri Kosina static void __exit hid_exit(void)
266586166b7bSJiri Kosina {
2666a635f9ddSJiri Kosina 	hid_debug_exit();
266786166b7bSJiri Kosina 	hidraw_exit();
266885cdaf52SJiri Slaby 	bus_unregister(&hid_bus_type);
266986166b7bSJiri Kosina }
267086166b7bSJiri Kosina 
267186166b7bSJiri Kosina module_init(hid_init);
267286166b7bSJiri Kosina module_exit(hid_exit);
267386166b7bSJiri Kosina 
267488adb72bSJiri Kosina MODULE_AUTHOR("Andreas Gal");
267588adb72bSJiri Kosina MODULE_AUTHOR("Vojtech Pavlik");
267688adb72bSJiri Kosina MODULE_AUTHOR("Jiri Kosina");
2677aa938f79SJiri Kosina MODULE_LICENSE(DRIVER_LICENSE);
2678aa938f79SJiri Kosina 
2679