hid-core.c 88.2 KB
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/*
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 *  HID support for Linux
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 *
 *  Copyright (c) 1999 Andreas Gal
 *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
 *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
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 *  Copyright (c) 2006-2012 Jiri Kosina
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 */

/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 */

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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

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#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/mm.h>
#include <linux/spinlock.h>
#include <asm/unaligned.h>
#include <asm/byteorder.h>
#include <linux/input.h>
#include <linux/wait.h>
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#include <linux/vmalloc.h>
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#include <linux/sched.h>
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#include <linux/semaphore.h>
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#include <linux/hid.h>
#include <linux/hiddev.h>
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#include <linux/hid-debug.h>
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#include <linux/hidraw.h>
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#include "hid-ids.h"

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/*
 * Version Information
 */

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#define DRIVER_DESC "HID core driver"
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#define DRIVER_LICENSE "GPL"

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int hid_debug = 0;
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module_param_named(debug, hid_debug, int, 0600);
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MODULE_PARM_DESC(debug, "toggle HID debugging messages");
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EXPORT_SYMBOL_GPL(hid_debug);

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static int hid_ignore_special_drivers = 0;
module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600);
MODULE_PARM_DESC(debug, "Ignore any special drivers and handle all devices by generic driver");

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/*
 * Register a new report for a device.
 */

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struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
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{
	struct hid_report_enum *report_enum = device->report_enum + type;
	struct hid_report *report;

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	if (id >= HID_MAX_IDS)
		return NULL;
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	if (report_enum->report_id_hash[id])
		return report_enum->report_id_hash[id];

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	report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
	if (!report)
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		return NULL;

	if (id != 0)
		report_enum->numbered = 1;

	report->id = id;
	report->type = type;
	report->size = 0;
	report->device = device;
	report_enum->report_id_hash[id] = report;

	list_add_tail(&report->list, &report_enum->report_list);

	return report;
}
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EXPORT_SYMBOL_GPL(hid_register_report);
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/*
 * Register a new field for this report.
 */

static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
{
	struct hid_field *field;

	if (report->maxfield == HID_MAX_FIELDS) {
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		hid_err(report->device, "too many fields in report\n");
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		return NULL;
	}

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	field = kzalloc((sizeof(struct hid_field) +
			 usages * sizeof(struct hid_usage) +
			 values * sizeof(unsigned)), GFP_KERNEL);
	if (!field)
		return NULL;
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	field->index = report->maxfield++;
	report->field[field->index] = field;
	field->usage = (struct hid_usage *)(field + 1);
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	field->value = (s32 *)(field->usage + usages);
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	field->report = report;

	return field;
}

/*
 * Open a collection. The type/usage is pushed on the stack.
 */

static int open_collection(struct hid_parser *parser, unsigned type)
{
	struct hid_collection *collection;
	unsigned usage;

	usage = parser->local.usage[0];

	if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
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		hid_err(parser->device, "collection stack overflow\n");
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		return -EINVAL;
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	}

	if (parser->device->maxcollection == parser->device->collection_size) {
		collection = kmalloc(sizeof(struct hid_collection) *
				parser->device->collection_size * 2, GFP_KERNEL);
		if (collection == NULL) {
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			hid_err(parser->device, "failed to reallocate collection array\n");
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			return -ENOMEM;
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		}
		memcpy(collection, parser->device->collection,
			sizeof(struct hid_collection) *
			parser->device->collection_size);
		memset(collection + parser->device->collection_size, 0,
			sizeof(struct hid_collection) *
			parser->device->collection_size);
		kfree(parser->device->collection);
		parser->device->collection = collection;
		parser->device->collection_size *= 2;
	}

	parser->collection_stack[parser->collection_stack_ptr++] =
		parser->device->maxcollection;

	collection = parser->device->collection +
		parser->device->maxcollection++;
	collection->type = type;
	collection->usage = usage;
	collection->level = parser->collection_stack_ptr - 1;

	if (type == HID_COLLECTION_APPLICATION)
		parser->device->maxapplication++;

	return 0;
}

/*
 * Close a collection.
 */

static int close_collection(struct hid_parser *parser)
{
	if (!parser->collection_stack_ptr) {
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		hid_err(parser->device, "collection stack underflow\n");
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		return -EINVAL;
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	}
	parser->collection_stack_ptr--;
	return 0;
}

/*
 * Climb up the stack, search for the specified collection type
 * and return the usage.
 */

static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
{
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	struct hid_collection *collection = parser->device->collection;
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	int n;
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	for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
		unsigned index = parser->collection_stack[n];
		if (collection[index].type == type)
			return collection[index].usage;
	}
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	return 0; /* we know nothing about this usage type */
}

/*
 * Add a usage to the temporary parser table.
 */

static int hid_add_usage(struct hid_parser *parser, unsigned usage)
{
	if (parser->local.usage_index >= HID_MAX_USAGES) {
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		hid_err(parser->device, "usage index exceeded\n");
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		return -1;
	}
	parser->local.usage[parser->local.usage_index] = usage;
	parser->local.collection_index[parser->local.usage_index] =
		parser->collection_stack_ptr ?
		parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
	parser->local.usage_index++;
	return 0;
}

/*
 * Register a new field for this report.
 */

static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
{
	struct hid_report *report;
	struct hid_field *field;
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	unsigned usages;
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	unsigned offset;
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	unsigned i;
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	report = hid_register_report(parser->device, report_type, parser->global.report_id);
	if (!report) {
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		hid_err(parser->device, "hid_register_report failed\n");
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		return -1;
	}

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	/* Handle both signed and unsigned cases properly */
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	if ((parser->global.logical_minimum < 0 &&
		parser->global.logical_maximum <
		parser->global.logical_minimum) ||
		(parser->global.logical_minimum >= 0 &&
		(__u32)parser->global.logical_maximum <
		(__u32)parser->global.logical_minimum)) {
		dbg_hid("logical range invalid 0x%x 0x%x\n",
			parser->global.logical_minimum,
			parser->global.logical_maximum);
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		return -1;
	}

	offset = report->size;
	report->size += parser->global.report_size * parser->global.report_count;

	if (!parser->local.usage_index) /* Ignore padding fields */
		return 0;

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	usages = max_t(unsigned, parser->local.usage_index,
				 parser->global.report_count);
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	field = hid_register_field(report, usages, parser->global.report_count);
	if (!field)
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		return 0;

	field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
	field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
	field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);

	for (i = 0; i < usages; i++) {
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		unsigned j = i;
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		/* Duplicate the last usage we parsed if we have excess values */
		if (i >= parser->local.usage_index)
			j = parser->local.usage_index - 1;
		field->usage[i].hid = parser->local.usage[j];
		field->usage[i].collection_index =
			parser->local.collection_index[j];
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		field->usage[i].usage_index = i;
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	}

	field->maxusage = usages;
	field->flags = flags;
	field->report_offset = offset;
	field->report_type = report_type;
	field->report_size = parser->global.report_size;
	field->report_count = parser->global.report_count;
	field->logical_minimum = parser->global.logical_minimum;
	field->logical_maximum = parser->global.logical_maximum;
	field->physical_minimum = parser->global.physical_minimum;
	field->physical_maximum = parser->global.physical_maximum;
	field->unit_exponent = parser->global.unit_exponent;
	field->unit = parser->global.unit;

	return 0;
}

/*
 * Read data value from item.
 */

static u32 item_udata(struct hid_item *item)
{
	switch (item->size) {
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	case 1: return item->data.u8;
	case 2: return item->data.u16;
	case 4: return item->data.u32;
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	}
	return 0;
}

static s32 item_sdata(struct hid_item *item)
{
	switch (item->size) {
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	case 1: return item->data.s8;
	case 2: return item->data.s16;
	case 4: return item->data.s32;
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	}
	return 0;
}

/*
 * Process a global item.
 */

static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
{
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	__s32 raw_value;
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	switch (item->tag) {
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	case HID_GLOBAL_ITEM_TAG_PUSH:
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		if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
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			hid_err(parser->device, "global environment stack overflow\n");
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			return -1;
		}
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		memcpy(parser->global_stack + parser->global_stack_ptr++,
			&parser->global, sizeof(struct hid_global));
		return 0;
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	case HID_GLOBAL_ITEM_TAG_POP:
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		if (!parser->global_stack_ptr) {
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			hid_err(parser->device, "global environment stack underflow\n");
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			return -1;
		}
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		memcpy(&parser->global, parser->global_stack +
			--parser->global_stack_ptr, sizeof(struct hid_global));
		return 0;
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	case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
		parser->global.usage_page = item_udata(item);
		return 0;
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	case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
		parser->global.logical_minimum = item_sdata(item);
		return 0;
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	case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
		if (parser->global.logical_minimum < 0)
			parser->global.logical_maximum = item_sdata(item);
		else
			parser->global.logical_maximum = item_udata(item);
		return 0;
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	case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
		parser->global.physical_minimum = item_sdata(item);
		return 0;
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	case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
		if (parser->global.physical_minimum < 0)
			parser->global.physical_maximum = item_sdata(item);
		else
			parser->global.physical_maximum = item_udata(item);
		return 0;
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	case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
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		/* Many devices provide unit exponent as a two's complement
		 * nibble due to the common misunderstanding of HID
		 * specification 1.11, 6.2.2.7 Global Items. Attempt to handle
		 * both this and the standard encoding. */
		raw_value = item_sdata(item);
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		if (!(raw_value & 0xfffffff0))
			parser->global.unit_exponent = hid_snto32(raw_value, 4);
		else
			parser->global.unit_exponent = raw_value;
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		return 0;
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	case HID_GLOBAL_ITEM_TAG_UNIT:
		parser->global.unit = item_udata(item);
		return 0;
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	case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
		parser->global.report_size = item_udata(item);
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		if (parser->global.report_size > 128) {
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			hid_err(parser->device, "invalid report_size %d\n",
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					parser->global.report_size);
			return -1;
		}
		return 0;
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	case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
		parser->global.report_count = item_udata(item);
		if (parser->global.report_count > HID_MAX_USAGES) {
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			hid_err(parser->device, "invalid report_count %d\n",
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					parser->global.report_count);
			return -1;
		}
		return 0;
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	case HID_GLOBAL_ITEM_TAG_REPORT_ID:
		parser->global.report_id = item_udata(item);
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		if (parser->global.report_id == 0 ||
		    parser->global.report_id >= HID_MAX_IDS) {
			hid_err(parser->device, "report_id %u is invalid\n",
				parser->global.report_id);
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			return -1;
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		}
		return 0;

	default:
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		hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
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		return -1;
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	}
}

/*
 * Process a local item.
 */

static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
{
	__u32 data;
	unsigned n;

	data = item_udata(item);

	switch (item->tag) {
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	case HID_LOCAL_ITEM_TAG_DELIMITER:

		if (data) {
			/*
			 * We treat items before the first delimiter
			 * as global to all usage sets (branch 0).
			 * In the moment we process only these global
			 * items and the first delimiter set.
			 */
			if (parser->local.delimiter_depth != 0) {
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				hid_err(parser->device, "nested delimiters\n");
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				return -1;
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			}
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			parser->local.delimiter_depth++;
			parser->local.delimiter_branch++;
		} else {
			if (parser->local.delimiter_depth < 1) {
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				hid_err(parser->device, "bogus close delimiter\n");
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				return -1;
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			}
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			parser->local.delimiter_depth--;
		}
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		return 0;
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	case HID_LOCAL_ITEM_TAG_USAGE:
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		if (parser->local.delimiter_branch > 1) {
			dbg_hid("alternative usage ignored\n");
			return 0;
		}
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		if (item->size <= 2)
			data = (parser->global.usage_page << 16) + data;
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		return hid_add_usage(parser, data);
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	case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
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		if (parser->local.delimiter_branch > 1) {
			dbg_hid("alternative usage ignored\n");
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			return 0;
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		}
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		if (item->size <= 2)
			data = (parser->global.usage_page << 16) + data;
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		parser->local.usage_minimum = data;
		return 0;
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	case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
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		if (parser->local.delimiter_branch > 1) {
			dbg_hid("alternative usage ignored\n");
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			return 0;
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		}
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		if (item->size <= 2)
			data = (parser->global.usage_page << 16) + data;
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		for (n = parser->local.usage_minimum; n <= data; n++)
			if (hid_add_usage(parser, n)) {
				dbg_hid("hid_add_usage failed\n");
				return -1;
			}
		return 0;

	default:

		dbg_hid("unknown local item tag 0x%x\n", item->tag);
		return 0;
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	}
	return 0;
}

/*
 * Process a main item.
 */

static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
{
	__u32 data;
	int ret;

	data = item_udata(item);

	switch (item->tag) {
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	case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
		ret = open_collection(parser, data & 0xff);
		break;
	case HID_MAIN_ITEM_TAG_END_COLLECTION:
		ret = close_collection(parser);
		break;
	case HID_MAIN_ITEM_TAG_INPUT:
		ret = hid_add_field(parser, HID_INPUT_REPORT, data);
		break;
	case HID_MAIN_ITEM_TAG_OUTPUT:
		ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
		break;
	case HID_MAIN_ITEM_TAG_FEATURE:
		ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
		break;
	default:
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		hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
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		ret = 0;
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	}

	memset(&parser->local, 0, sizeof(parser->local));	/* Reset the local parser environment */

	return ret;
}

/*
 * Process a reserved item.
 */

static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
{
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	dbg_hid("reserved item type, tag 0x%x\n", item->tag);
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	return 0;
}

/*
 * Free a report and all registered fields. The field->usage and
 * field->value table's are allocated behind the field, so we need
 * only to free(field) itself.
 */

static void hid_free_report(struct hid_report *report)
{
	unsigned n;

	for (n = 0; n < report->maxfield; n++)
		kfree(report->field[n]);
	kfree(report);
}

/*
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 * Close report. This function returns the device
 * state to the point prior to hid_open_report().
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 */
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static void hid_close_report(struct hid_device *device)
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{
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	unsigned i, j;
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	for (i = 0; i < HID_REPORT_TYPES; i++) {
		struct hid_report_enum *report_enum = device->report_enum + i;

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		for (j = 0; j < HID_MAX_IDS; j++) {
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			struct hid_report *report = report_enum->report_id_hash[j];
			if (report)
				hid_free_report(report);
		}
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		memset(report_enum, 0, sizeof(*report_enum));
		INIT_LIST_HEAD(&report_enum->report_list);
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	}

	kfree(device->rdesc);
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	device->rdesc = NULL;
	device->rsize = 0;

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	kfree(device->collection);
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	device->collection = NULL;
	device->collection_size = 0;
	device->maxcollection = 0;
	device->maxapplication = 0;

	device->status &= ~HID_STAT_PARSED;
}

/*
 * Free a device structure, all reports, and all fields.
 */

static void hid_device_release(struct device *dev)
{
	struct hid_device *hid = container_of(dev, struct hid_device, dev);

	hid_close_report(hid);
	kfree(hid->dev_rdesc);
	kfree(hid);
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}

/*
 * Fetch a report description item from the data stream. We support long
 * items, though they are not used yet.
 */

static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
{
	u8 b;

	if ((end - start) <= 0)
		return NULL;

	b = *start++;

	item->type = (b >> 2) & 3;
	item->tag  = (b >> 4) & 15;

	if (item->tag == HID_ITEM_TAG_LONG) {

		item->format = HID_ITEM_FORMAT_LONG;

		if ((end - start) < 2)
			return NULL;

		item->size = *start++;
		item->tag  = *start++;

		if ((end - start) < item->size)
			return NULL;

		item->data.longdata = start;
		start += item->size;
		return start;
	}

	item->format = HID_ITEM_FORMAT_SHORT;
	item->size = b & 3;

	switch (item->size) {
J
Jiri Slaby 已提交
655 656
	case 0:
		return start;
657

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Jiri Slaby 已提交
658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677
	case 1:
		if ((end - start) < 1)
			return NULL;
		item->data.u8 = *start++;
		return start;

	case 2:
		if ((end - start) < 2)
			return NULL;
		item->data.u16 = get_unaligned_le16(start);
		start = (__u8 *)((__le16 *)start + 1);
		return start;

	case 3:
		item->size++;
		if ((end - start) < 4)
			return NULL;
		item->data.u32 = get_unaligned_le32(start);
		start = (__u8 *)((__le32 *)start + 1);
		return start;
678 679 680 681 682
	}

	return NULL;
}

683
static void hid_scan_input_usage(struct hid_parser *parser, u32 usage)
684
{
685 686
	struct hid_device *hid = parser->device;

687 688
	if (usage == HID_DG_CONTACTID)
		hid->group = HID_GROUP_MULTITOUCH;
689 690
}

691 692 693 694 695 696 697
static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage)
{
	if (usage == 0xff0000c5 && parser->global.report_count == 256 &&
	    parser->global.report_size == 8)
		parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8;
}

698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726
static void hid_scan_collection(struct hid_parser *parser, unsigned type)
{
	struct hid_device *hid = parser->device;

	if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
	    type == HID_COLLECTION_PHYSICAL)
		hid->group = HID_GROUP_SENSOR_HUB;
}

static int hid_scan_main(struct hid_parser *parser, struct hid_item *item)
{
	__u32 data;
	int i;

	data = item_udata(item);

	switch (item->tag) {
	case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
		hid_scan_collection(parser, data & 0xff);
		break;
	case HID_MAIN_ITEM_TAG_END_COLLECTION:
		break;
	case HID_MAIN_ITEM_TAG_INPUT:
		for (i = 0; i < parser->local.usage_index; i++)
			hid_scan_input_usage(parser, parser->local.usage[i]);
		break;
	case HID_MAIN_ITEM_TAG_OUTPUT:
		break;
	case HID_MAIN_ITEM_TAG_FEATURE:
727 728
		for (i = 0; i < parser->local.usage_index; i++)
			hid_scan_feature_usage(parser, parser->local.usage[i]);
729 730 731 732 733 734 735 736 737
		break;
	}

	/* Reset the local parser environment */
	memset(&parser->local, 0, sizeof(parser->local));

	return 0;
}

738 739 740 741 742 743 744
/*
 * Scan a report descriptor before the device is added to the bus.
 * Sets device groups and other properties that determine what driver
 * to load.
 */
static int hid_scan_report(struct hid_device *hid)
{
745 746
	struct hid_parser *parser;
	struct hid_item item;
747 748
	__u8 *start = hid->dev_rdesc;
	__u8 *end = start + hid->dev_rsize;
749 750 751 752 753 754 755 756 757 758 759
	static int (*dispatch_type[])(struct hid_parser *parser,
				      struct hid_item *item) = {
		hid_scan_main,
		hid_parser_global,
		hid_parser_local,
		hid_parser_reserved
	};

	parser = vzalloc(sizeof(struct hid_parser));
	if (!parser)
		return -ENOMEM;
760

761
	parser->device = hid;
762 763
	hid->group = HID_GROUP_GENERIC;

764 765 766 767 768 769 770 771
	/*
	 * The parsing is simpler than the one in hid_open_report() as we should
	 * be robust against hid errors. Those errors will be raised by
	 * hid_open_report() anyway.
	 */
	while ((start = fetch_item(start, end, &item)) != NULL)
		dispatch_type[item.type](parser, &item);

772 773 774 775 776 777 778
	/*
	 * Handle special flags set during scanning.
	 */
	if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) &&
	    (hid->group == HID_GROUP_MULTITOUCH))
		hid->group = HID_GROUP_MULTITOUCH_WIN_8;

779
	vfree(parser);
780 781 782
	return 0;
}

J
Jiri Slaby 已提交
783 784 785 786 787 788 789
/**
 * hid_parse_report - parse device report
 *
 * @device: hid device
 * @start: report start
 * @size: report size
 *
790 791 792 793 794 795 796 797 798 799 800 801 802
 * Allocate the device report as read by the bus driver. This function should
 * only be called from parse() in ll drivers.
 */
int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
{
	hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
	if (!hid->dev_rdesc)
		return -ENOMEM;
	hid->dev_rsize = size;
	return 0;
}
EXPORT_SYMBOL_GPL(hid_parse_report);

803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860
static const char * const hid_report_names[] = {
	"HID_INPUT_REPORT",
	"HID_OUTPUT_REPORT",
	"HID_FEATURE_REPORT",
};
/**
 * hid_validate_values - validate existing device report's value indexes
 *
 * @device: hid device
 * @type: which report type to examine
 * @id: which report ID to examine (0 for first)
 * @field_index: which report field to examine
 * @report_counts: expected number of values
 *
 * Validate the number of values in a given field of a given report, after
 * parsing.
 */
struct hid_report *hid_validate_values(struct hid_device *hid,
				       unsigned int type, unsigned int id,
				       unsigned int field_index,
				       unsigned int report_counts)
{
	struct hid_report *report;

	if (type > HID_FEATURE_REPORT) {
		hid_err(hid, "invalid HID report type %u\n", type);
		return NULL;
	}

	if (id >= HID_MAX_IDS) {
		hid_err(hid, "invalid HID report id %u\n", id);
		return NULL;
	}

	/*
	 * Explicitly not using hid_get_report() here since it depends on
	 * ->numbered being checked, which may not always be the case when
	 * drivers go to access report values.
	 */
	report = hid->report_enum[type].report_id_hash[id];
	if (!report) {
		hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
		return NULL;
	}
	if (report->maxfield <= field_index) {
		hid_err(hid, "not enough fields in %s %u\n",
			hid_report_names[type], id);
		return NULL;
	}
	if (report->field[field_index]->report_count < report_counts) {
		hid_err(hid, "not enough values in %s %u field %u\n",
			hid_report_names[type], id, field_index);
		return NULL;
	}
	return report;
}
EXPORT_SYMBOL_GPL(hid_validate_values);

861 862 863 864 865
/**
 * hid_open_report - open a driver-specific device report
 *
 * @device: hid device
 *
866 867
 * Parse a report description into a hid_device structure. Reports are
 * enumerated, fields are attached to these reports.
J
Jiri Slaby 已提交
868
 * 0 returned on success, otherwise nonzero error value.
869 870 871
 *
 * This function (or the equivalent hid_parse() macro) should only be
 * called from probe() in drivers, before starting the device.
872
 */
873
int hid_open_report(struct hid_device *device)
874 875 876
{
	struct hid_parser *parser;
	struct hid_item item;
877 878
	unsigned int size;
	__u8 *start;
879
	__u8 *buf;
880
	__u8 *end;
J
Jiri Slaby 已提交
881
	int ret;
882 883 884 885 886 887 888 889
	static int (*dispatch_type[])(struct hid_parser *parser,
				      struct hid_item *item) = {
		hid_parser_main,
		hid_parser_global,
		hid_parser_local,
		hid_parser_reserved
	};

890 891 892 893 894 895 896 897
	if (WARN_ON(device->status & HID_STAT_PARSED))
		return -EBUSY;

	start = device->dev_rdesc;
	if (WARN_ON(!start))
		return -ENODEV;
	size = device->dev_rsize;

898 899 900 901
	buf = kmemdup(start, size, GFP_KERNEL);
	if (buf == NULL)
		return -ENOMEM;

J
Jiri Slaby 已提交
902
	if (device->driver->report_fixup)
903 904 905
		start = device->driver->report_fixup(device, buf, &size);
	else
		start = buf;
J
Jiri Slaby 已提交
906

907 908 909
	start = kmemdup(start, size, GFP_KERNEL);
	kfree(buf);
	if (start == NULL)
J
Jiri Slaby 已提交
910
		return -ENOMEM;
911 912

	device->rdesc = start;
913 914
	device->rsize = size;

915
	parser = vzalloc(sizeof(struct hid_parser));
J
Jiri Slaby 已提交
916 917 918
	if (!parser) {
		ret = -ENOMEM;
		goto err;
919
	}
J
Jiri Slaby 已提交
920

921 922 923
	parser->device = device;

	end = start + size;
924 925 926 927 928 929 930 931 932

	device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
				     sizeof(struct hid_collection), GFP_KERNEL);
	if (!device->collection) {
		ret = -ENOMEM;
		goto err;
	}
	device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;

J
Jiri Slaby 已提交
933
	ret = -EINVAL;
934 935 936
	while ((start = fetch_item(start, end, &item)) != NULL) {

		if (item.format != HID_ITEM_FORMAT_SHORT) {
937
			hid_err(device, "unexpected long global item\n");
J
Jiri Slaby 已提交
938
			goto err;
939 940 941
		}

		if (dispatch_type[item.type](parser, &item)) {
942
			hid_err(device, "item %u %u %u %u parsing failed\n",
943 944
				item.format, (unsigned)item.size,
				(unsigned)item.type, (unsigned)item.tag);
J
Jiri Slaby 已提交
945
			goto err;
946 947 948 949
		}

		if (start == end) {
			if (parser->collection_stack_ptr) {
950
				hid_err(device, "unbalanced collection at end of report description\n");
J
Jiri Slaby 已提交
951
				goto err;
952 953
			}
			if (parser->local.delimiter_depth) {
954
				hid_err(device, "unbalanced delimiter at end of report description\n");
J
Jiri Slaby 已提交
955
				goto err;
956
			}
957
			vfree(parser);
958
			device->status |= HID_STAT_PARSED;
J
Jiri Slaby 已提交
959
			return 0;
960 961 962
		}
	}

963
	hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
J
Jiri Slaby 已提交
964
err:
965
	vfree(parser);
966
	hid_close_report(device);
J
Jiri Slaby 已提交
967
	return ret;
968
}
969
EXPORT_SYMBOL_GPL(hid_open_report);
970 971 972 973 974 975 976 977 978 979

/*
 * Convert a signed n-bit integer to signed 32-bit integer. Common
 * cases are done through the compiler, the screwed things has to be
 * done by hand.
 */

static s32 snto32(__u32 value, unsigned n)
{
	switch (n) {
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Jiri Slaby 已提交
980 981 982
	case 8:  return ((__s8)value);
	case 16: return ((__s16)value);
	case 32: return ((__s32)value);
983 984 985 986
	}
	return value & (1 << (n - 1)) ? value | (-1 << n) : value;
}

987 988 989 990 991 992
s32 hid_snto32(__u32 value, unsigned n)
{
	return snto32(value, n);
}
EXPORT_SYMBOL_GPL(hid_snto32);

993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016
/*
 * Convert a signed 32-bit integer to a signed n-bit integer.
 */

static u32 s32ton(__s32 value, unsigned n)
{
	s32 a = value >> (n - 1);
	if (a && a != -1)
		return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
	return value & ((1 << n) - 1);
}

/*
 * Extract/implement a data field from/to a little endian report (bit array).
 *
 * Code sort-of follows HID spec:
 *     http://www.usb.org/developers/devclass_docs/HID1_11.pdf
 *
 * While the USB HID spec allows unlimited length bit fields in "report
 * descriptors", most devices never use more than 16 bits.
 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
 */

J
Joe Perches 已提交
1017 1018
static __u32 extract(const struct hid_device *hid, __u8 *report,
		     unsigned offset, unsigned n)
1019 1020 1021
{
	u64 x;

1022
	if (n > 32)
1023 1024
		hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
			 n, current->comm);
1025 1026

	report += offset >> 3;  /* adjust byte index */
J
Jiri Kosina 已提交
1027
	offset &= 7;            /* now only need bit offset into one byte */
1028
	x = get_unaligned_le64(report);
J
Jiri Kosina 已提交
1029
	x = (x >> offset) & ((1ULL << n) - 1);  /* extract bit field */
1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040
	return (u32) x;
}

/*
 * "implement" : set bits in a little endian bit stream.
 * Same concepts as "extract" (see comments above).
 * The data mangled in the bit stream remains in little endian
 * order the whole time. It make more sense to talk about
 * endianness of register values by considering a register
 * a "cached" copy of the little endiad bit stream.
 */
J
Joe Perches 已提交
1041 1042
static void implement(const struct hid_device *hid, __u8 *report,
		      unsigned offset, unsigned n, __u32 value)
1043
{
1044
	u64 x;
1045 1046
	u64 m = (1ULL << n) - 1;

1047
	if (n > 32)
1048 1049
		hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
			 __func__, n, current->comm);
1050

1051
	if (value > m)
1052 1053
		hid_warn(hid, "%s() called with too large value %d! (%s)\n",
			 __func__, value, current->comm);
1054 1055 1056 1057 1058 1059
	WARN_ON(value > m);
	value &= m;

	report += offset >> 3;
	offset &= 7;

1060 1061 1062 1063
	x = get_unaligned_le64(report);
	x &= ~(m << offset);
	x |= ((u64)value) << offset;
	put_unaligned_le64(x, report);
1064 1065 1066 1067 1068 1069
}

/*
 * Search an array for a value.
 */

J
Joe Perches 已提交
1070
static int search(__s32 *array, __s32 value, unsigned n)
1071 1072 1073 1074 1075 1076 1077 1078
{
	while (n--) {
		if (*array++ == value)
			return 0;
	}
	return -1;
}

J
Jiri Slaby 已提交
1079 1080 1081 1082 1083 1084 1085 1086 1087
/**
 * hid_match_report - check if driver's raw_event should be called
 *
 * @hid: hid device
 * @report_type: type to match against
 *
 * compare hid->driver->report_table->report_type to report->type
 */
static int hid_match_report(struct hid_device *hid, struct hid_report *report)
1088
{
J
Jiri Slaby 已提交
1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133
	const struct hid_report_id *id = hid->driver->report_table;

	if (!id) /* NULL means all */
		return 1;

	for (; id->report_type != HID_TERMINATOR; id++)
		if (id->report_type == HID_ANY_ID ||
				id->report_type == report->type)
			return 1;
	return 0;
}

/**
 * hid_match_usage - check if driver's event should be called
 *
 * @hid: hid device
 * @usage: usage to match against
 *
 * compare hid->driver->usage_table->usage_{type,code} to
 * usage->usage_{type,code}
 */
static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
{
	const struct hid_usage_id *id = hid->driver->usage_table;

	if (!id) /* NULL means all */
		return 1;

	for (; id->usage_type != HID_ANY_ID - 1; id++)
		if ((id->usage_hid == HID_ANY_ID ||
				id->usage_hid == usage->hid) &&
				(id->usage_type == HID_ANY_ID ||
				id->usage_type == usage->type) &&
				(id->usage_code == HID_ANY_ID ||
				 id->usage_code == usage->code))
			return 1;
	return 0;
}

static void hid_process_event(struct hid_device *hid, struct hid_field *field,
		struct hid_usage *usage, __s32 value, int interrupt)
{
	struct hid_driver *hdrv = hid->driver;
	int ret;

1134 1135
	if (!list_empty(&hid->debug_list))
		hid_dump_input(hid, usage, value);
J
Jiri Slaby 已提交
1136 1137 1138 1139 1140

	if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
		ret = hdrv->event(hid, field, usage, value);
		if (ret != 0) {
			if (ret < 0)
1141
				hid_err(hid, "%s's event failed with %d\n",
J
Jiri Slaby 已提交
1142 1143 1144 1145 1146
						hdrv->name, ret);
			return;
		}
	}

1147 1148
	if (hid->claimed & HID_CLAIMED_INPUT)
		hidinput_hid_event(hid, field, usage, value);
J
Jiri Kosina 已提交
1149 1150
	if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
		hid->hiddev_hid_event(hid, field, usage, value);
1151 1152 1153 1154 1155 1156 1157 1158
}

/*
 * Analyse a received field, and fetch the data from it. The field
 * content is stored for next report processing (we do differential
 * reporting to the layer).
 */

1159 1160
static void hid_input_field(struct hid_device *hid, struct hid_field *field,
			    __u8 *data, int interrupt)
1161 1162 1163 1164 1165 1166 1167 1168 1169
{
	unsigned n;
	unsigned count = field->report_count;
	unsigned offset = field->report_offset;
	unsigned size = field->report_size;
	__s32 min = field->logical_minimum;
	__s32 max = field->logical_maximum;
	__s32 *value;

J
Joe Perches 已提交
1170 1171
	value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
	if (!value)
1172 1173 1174 1175
		return;

	for (n = 0; n < count; n++) {

1176 1177 1178 1179
		value[n] = min < 0 ?
			snto32(extract(hid, data, offset + n * size, size),
			       size) :
			extract(hid, data, offset + n * size, size);
1180

1181 1182 1183 1184 1185
		/* Ignore report if ErrorRollOver */
		if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
		    value[n] >= min && value[n] <= max &&
		    field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
			goto exit;
1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214
	}

	for (n = 0; n < count; n++) {

		if (HID_MAIN_ITEM_VARIABLE & field->flags) {
			hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
			continue;
		}

		if (field->value[n] >= min && field->value[n] <= max
			&& field->usage[field->value[n] - min].hid
			&& search(value, field->value[n], count))
				hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);

		if (value[n] >= min && value[n] <= max
			&& field->usage[value[n] - min].hid
			&& search(field->value, value[n], count))
				hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
	}

	memcpy(field->value, value, count * sizeof(__s32));
exit:
	kfree(value);
}

/*
 * Output the field into the report.
 */

1215 1216
static void hid_output_field(const struct hid_device *hid,
			     struct hid_field *field, __u8 *data)
1217 1218 1219 1220 1221 1222 1223 1224
{
	unsigned count = field->report_count;
	unsigned offset = field->report_offset;
	unsigned size = field->report_size;
	unsigned n;

	for (n = 0; n < count; n++) {
		if (field->logical_minimum < 0)	/* signed values */
1225 1226
			implement(hid, data, offset + n * size, size,
				  s32ton(field->value[n], size));
1227
		else				/* unsigned values */
1228 1229
			implement(hid, data, offset + n * size, size,
				  field->value[n]);
1230 1231 1232 1233
	}
}

/*
1234 1235
 * Create a report. 'data' has to be allocated using
 * hid_alloc_report_buf() so that it has proper size.
1236 1237
 */

J
Jiri Kosina 已提交
1238
void hid_output_report(struct hid_report *report, __u8 *data)
1239 1240 1241 1242 1243 1244
{
	unsigned n;

	if (report->id > 0)
		*data++ = report->id;

1245
	memset(data, 0, ((report->size - 1) >> 3) + 1);
1246
	for (n = 0; n < report->maxfield; n++)
1247
		hid_output_field(report->device, report->field[n], data);
1248
}
J
Jiri Kosina 已提交
1249
EXPORT_SYMBOL_GPL(hid_output_report);
1250

1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266
/*
 * Allocator for buffer that is going to be passed to hid_output_report()
 */
u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
{
	/*
	 * 7 extra bytes are necessary to achieve proper functionality
	 * of implement() working on 8 byte chunks
	 */

	int len = ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7;

	return kmalloc(len, flags);
}
EXPORT_SYMBOL_GPL(hid_alloc_report_buf);

1267 1268 1269 1270 1271 1272 1273 1274
/*
 * Set a field value. The report this field belongs to has to be
 * created and transferred to the device, to set this value in the
 * device.
 */

int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
{
1275 1276 1277 1278 1279 1280
	unsigned size;

	if (!field)
		return -1;

	size = field->report_size;
1281

1282
	hid_dump_input(field->report->device, field->usage + offset, value);
1283 1284

	if (offset >= field->report_count) {
1285 1286
		hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
				offset, field->report_count);
1287 1288 1289 1290
		return -1;
	}
	if (field->logical_minimum < 0) {
		if (value != snto32(s32ton(value, size), size)) {
1291
			hid_err(field->report->device, "value %d is out of range\n", value);
1292 1293 1294 1295 1296 1297
			return -1;
		}
	}
	field->value[offset] = value;
	return 0;
}
J
Jiri Kosina 已提交
1298
EXPORT_SYMBOL_GPL(hid_set_field);
1299

J
Jiri Slaby 已提交
1300 1301
static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
		const u8 *data)
1302 1303
{
	struct hid_report *report;
J
Jiri Slaby 已提交
1304
	unsigned int n = 0;	/* Normally report number is 0 */
1305

J
Jiri Slaby 已提交
1306 1307 1308
	/* Device uses numbered reports, data[0] is report number */
	if (report_enum->numbered)
		n = *data;
1309

J
Jiri Slaby 已提交
1310 1311 1312
	report = report_enum->report_id_hash[n];
	if (report == NULL)
		dbg_hid("undefined report_id %u received\n", n);
1313

J
Jiri Slaby 已提交
1314 1315
	return report;
}
1316

1317
int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
J
Jiri Slaby 已提交
1318 1319 1320 1321
		int interrupt)
{
	struct hid_report_enum *report_enum = hid->report_enum + type;
	struct hid_report *report;
1322
	struct hid_driver *hdrv;
J
Jiri Slaby 已提交
1323 1324 1325
	unsigned int a;
	int rsize, csize = size;
	u8 *cdata = data;
1326
	int ret = 0;
1327

J
Jiri Slaby 已提交
1328 1329
	report = hid_get_report(report_enum, data);
	if (!report)
1330
		goto out;
1331

J
Jiri Slaby 已提交
1332 1333 1334
	if (report_enum->numbered) {
		cdata++;
		csize--;
1335 1336 1337 1338
	}

	rsize = ((report->size - 1) >> 3) + 1;

1339 1340 1341
	if (rsize > HID_MAX_BUFFER_SIZE)
		rsize = HID_MAX_BUFFER_SIZE;

J
Jiri Slaby 已提交
1342 1343 1344 1345
	if (csize < rsize) {
		dbg_hid("report %d is too short, (%d < %d)\n", report->id,
				csize, rsize);
		memset(cdata + csize, 0, rsize - csize);
1346 1347 1348 1349
	}

	if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
		hid->hiddev_report_event(hid, report);
1350 1351 1352 1353 1354
	if (hid->claimed & HID_CLAIMED_HIDRAW) {
		ret = hidraw_report_event(hid, data, size);
		if (ret)
			goto out;
	}
1355

1356
	if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) {
1357 1358
		for (a = 0; a < report->maxfield; a++)
			hid_input_field(hid, report->field[a], cdata, interrupt);
1359 1360 1361
		hdrv = hid->driver;
		if (hdrv && hdrv->report)
			hdrv->report(hid, report);
1362
	}
1363 1364 1365

	if (hid->claimed & HID_CLAIMED_INPUT)
		hidinput_report_event(hid, report);
1366 1367
out:
	return ret;
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Jiri Slaby 已提交
1368 1369 1370 1371 1372 1373 1374 1375 1376 1377
}
EXPORT_SYMBOL_GPL(hid_report_raw_event);

/**
 * hid_input_report - report data from lower layer (usb, bt...)
 *
 * @hid: hid device
 * @type: HID report type (HID_*_REPORT)
 * @data: report contents
 * @size: size of data parameter
1378
 * @interrupt: distinguish between interrupt and control transfers
J
Jiri Slaby 已提交
1379 1380 1381 1382 1383
 *
 * This is data entry for lower layers.
 */
int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
{
1384 1385
	struct hid_report_enum *report_enum;
	struct hid_driver *hdrv;
J
Jiri Slaby 已提交
1386
	struct hid_report *report;
1387
	int ret = 0;
J
Jiri Slaby 已提交
1388

1389
	if (!hid)
J
Jiri Slaby 已提交
1390
		return -ENODEV;
1391

1392
	if (down_trylock(&hid->driver_input_lock))
1393 1394 1395 1396 1397 1398
		return -EBUSY;

	if (!hid->driver) {
		ret = -ENODEV;
		goto unlock;
	}
1399 1400
	report_enum = hid->report_enum + type;
	hdrv = hid->driver;
J
Jiri Slaby 已提交
1401 1402 1403

	if (!size) {
		dbg_hid("empty report\n");
1404 1405
		ret = -1;
		goto unlock;
J
Jiri Slaby 已提交
1406 1407
	}

1408
	/* Avoid unnecessary overhead if debugfs is disabled */
1409 1410
	if (!list_empty(&hid->debug_list))
		hid_dump_report(hid, type, data, size);
J
Jiri Slaby 已提交
1411

1412 1413
	report = hid_get_report(report_enum, data);

1414 1415 1416 1417
	if (!report) {
		ret = -1;
		goto unlock;
	}
J
Jiri Slaby 已提交
1418 1419 1420

	if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
		ret = hdrv->raw_event(hid, report, data, size);
1421
		if (ret < 0) {
1422 1423 1424
			ret = ret < 0 ? ret : 0;
			goto unlock;
		}
J
Jiri Slaby 已提交
1425 1426
	}

1427
	ret = hid_report_raw_event(hid, type, data, size, interrupt);
1428

1429
unlock:
1430
	up(&hid->driver_input_lock);
1431
	return ret;
1432 1433 1434
}
EXPORT_SYMBOL_GPL(hid_input_report);

1435 1436 1437
static bool hid_match_one_id(struct hid_device *hdev,
		const struct hid_device_id *id)
{
1438
	return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
1439
		(id->group == HID_GROUP_ANY || id->group == hdev->group) &&
1440 1441 1442 1443
		(id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
		(id->product == HID_ANY_ID || id->product == hdev->product);
}

1444
const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1445 1446 1447 1448 1449 1450 1451 1452 1453 1454
		const struct hid_device_id *id)
{
	for (; id->bus; id++)
		if (hid_match_one_id(hdev, id))
			return id;

	return NULL;
}

static const struct hid_device_id hid_hiddev_list[] = {
1455 1456
	{ HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1457 1458 1459 1460 1461 1462 1463 1464
	{ }
};

static bool hid_hiddev(struct hid_device *hdev)
{
	return !!hid_match_id(hdev, hid_hiddev_list);
}

1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490

static ssize_t
read_report_descriptor(struct file *filp, struct kobject *kobj,
		struct bin_attribute *attr,
		char *buf, loff_t off, size_t count)
{
	struct device *dev = container_of(kobj, struct device, kobj);
	struct hid_device *hdev = container_of(dev, struct hid_device, dev);

	if (off >= hdev->rsize)
		return 0;

	if (off + count > hdev->rsize)
		count = hdev->rsize - off;

	memcpy(buf, hdev->rdesc + off, count);

	return count;
}

static struct bin_attribute dev_bin_attr_report_desc = {
	.attr = { .name = "report_descriptor", .mode = 0444 },
	.read = read_report_descriptor,
	.size = HID_MAX_DESCRIPTOR_SIZE,
};

J
Jiri Slaby 已提交
1491 1492 1493 1494 1495 1496 1497 1498 1499 1500
int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
{
	static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
		"Joystick", "Gamepad", "Keyboard", "Keypad",
		"Multi-Axis Controller"
	};
	const char *type, *bus;
	char buf[64];
	unsigned int i;
	int len;
1501
	int ret;
J
Jiri Slaby 已提交
1502

1503 1504
	if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
		connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
D
Daniel Mack 已提交
1505 1506
	if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
		connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
J
Jiri Slaby 已提交
1507 1508
	if (hdev->bus != BUS_USB)
		connect_mask &= ~HID_CONNECT_HIDDEV;
1509 1510
	if (hid_hiddev(hdev))
		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
J
Jiri Slaby 已提交
1511 1512 1513 1514

	if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
				connect_mask & HID_CONNECT_HIDINPUT_FORCE))
		hdev->claimed |= HID_CLAIMED_INPUT;
1515

J
Jiri Slaby 已提交
1516 1517 1518 1519 1520 1521 1522
	if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
			!hdev->hiddev_connect(hdev,
				connect_mask & HID_CONNECT_HIDDEV_FORCE))
		hdev->claimed |= HID_CLAIMED_HIDDEV;
	if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
		hdev->claimed |= HID_CLAIMED_HIDRAW;

1523 1524 1525 1526
	/* Drivers with the ->raw_event callback set are not required to connect
	 * to any other listener. */
	if (!hdev->claimed && !hdev->driver->raw_event) {
		hid_err(hdev, "device has no listeners, quitting\n");
J
Jiri Slaby 已提交
1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565
		return -ENODEV;
	}

	if ((hdev->claimed & HID_CLAIMED_INPUT) &&
			(connect_mask & HID_CONNECT_FF) && hdev->ff_init)
		hdev->ff_init(hdev);

	len = 0;
	if (hdev->claimed & HID_CLAIMED_INPUT)
		len += sprintf(buf + len, "input");
	if (hdev->claimed & HID_CLAIMED_HIDDEV)
		len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
				hdev->minor);
	if (hdev->claimed & HID_CLAIMED_HIDRAW)
		len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
				((struct hidraw *)hdev->hidraw)->minor);

	type = "Device";
	for (i = 0; i < hdev->maxcollection; i++) {
		struct hid_collection *col = &hdev->collection[i];
		if (col->type == HID_COLLECTION_APPLICATION &&
		   (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
		   (col->usage & 0xffff) < ARRAY_SIZE(types)) {
			type = types[col->usage & 0xffff];
			break;
		}
	}

	switch (hdev->bus) {
	case BUS_USB:
		bus = "USB";
		break;
	case BUS_BLUETOOTH:
		bus = "BLUETOOTH";
		break;
	default:
		bus = "<UNKNOWN>";
	}

1566 1567 1568 1569 1570
	ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
	if (ret)
		hid_warn(hdev,
			 "can't create sysfs report descriptor attribute err: %d\n", ret);

1571 1572 1573
	hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
		 buf, bus, hdev->version >> 8, hdev->version & 0xff,
		 type, hdev->name, hdev->phys);
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Jiri Slaby 已提交
1574 1575 1576 1577 1578

	return 0;
}
EXPORT_SYMBOL_GPL(hid_connect);

1579 1580
void hid_disconnect(struct hid_device *hdev)
{
1581
	device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1582 1583 1584 1585 1586 1587 1588 1589 1590
	if (hdev->claimed & HID_CLAIMED_INPUT)
		hidinput_disconnect(hdev);
	if (hdev->claimed & HID_CLAIMED_HIDDEV)
		hdev->hiddev_disconnect(hdev);
	if (hdev->claimed & HID_CLAIMED_HIDRAW)
		hidraw_disconnect(hdev);
}
EXPORT_SYMBOL_GPL(hid_disconnect);

1591 1592 1593 1594 1595 1596 1597
/*
 * A list of devices for which there is a specialized driver on HID bus.
 *
 * Please note that for multitouch devices (driven by hid-multitouch driver),
 * there is a proper autodetection and autoloading in place (based on presence
 * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
 * as we are doing the right thing in hid_scan_usage().
1598 1599 1600 1601
 *
 * Autodetection for (USB) HID sensor hubs exists too. If a collection of type
 * physical is found inside a usage page of type sensor, hid-sensor-hub will be
 * used as a driver. See hid_scan_report().
1602
 */
1603
static const struct hid_device_id hid_have_special_driver[] = {
J
Jiri Slaby 已提交
1604 1605
	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1606
	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1607
	{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
J
Jiri Slaby 已提交
1608
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1609
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1610
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
J
Jiri Slaby 已提交
1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1622 1623 1624
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
J
Jiri Slaby 已提交
1625 1626 1627 1628 1629 1630
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1631 1632 1633 1634 1635
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
1636 1637 1638
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
J
Jiri Slaby 已提交
1639 1640 1641 1642 1643 1644
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1645 1646 1647
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1648 1649 1650 1651 1652 1653
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1654 1655 1656
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1657 1658 1659
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1660 1661 1662
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1663 1664 1665
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1666 1667 1668
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1669 1670 1671
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
1672 1673 1674
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
1675 1676 1677
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
1678 1679 1680
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1681
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
1682
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
J
Jiri Slaby 已提交
1683 1684
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1685
	{ HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
J
Jiri Slaby 已提交
1686
	{ HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1687
	{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1688
	{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
J
Jiri Slaby 已提交
1689
	{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1690
	{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
J
Jiri Slaby 已提交
1691
	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1692
	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1693
	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1694
	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
D
Don Prince 已提交
1695
	{ HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
J
Jiri Slaby 已提交
1696 1697
	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1698
	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1699
	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
J
Jiri Slaby 已提交
1700
	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1701
	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1702
	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1703
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
J
Jiri Slaby 已提交
1704 1705
	{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) },
1706
	{ HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
J
Jiri Slaby 已提交
1707
	{ HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1708
	{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1709
	{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1710
	{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1711
	{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
J
Jiri Slaby 已提交
1712
	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1713
	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1714
	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1715
	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1716
	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
1717 1718
	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
1719
	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
1720
	{ HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) },
1721
	{ HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
B
Bastien Nocera 已提交
1722
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
1723
	{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1724
	{ HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1725
	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
1726
	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
1727
	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1728 1729 1730
	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
J
Jiri Slaby 已提交
1731
	{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1732
	{ HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1733 1734 1735
#if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
#endif
J
Jiri Slaby 已提交
1736 1737 1738 1739
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1740
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
J
Jiri Slaby 已提交
1741 1742 1743 1744 1745 1746 1747
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1748
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
J
Jiri Slaby 已提交
1749 1750 1751
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1752
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
J
Jiri Slaby 已提交
1753
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1754
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
J
Jiri Slaby 已提交
1755 1756
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1757
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1758
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1759
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1760
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1761
#if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1762 1763
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1764
#endif
1765
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
J
Jiri Slaby 已提交
1766
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1767 1768
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1769 1770
	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1771
	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
J
Jiri Slaby 已提交
1772 1773
	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1774
	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) },
J
Jiri Slaby 已提交
1775 1776
	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1777
	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
J
Jiri Slaby 已提交
1778
	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
J
Jiri Slaby 已提交
1779
	{ HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
R
Rafi Rubin 已提交
1780
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1799
	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1800
	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
J
Jiri Slaby 已提交
1801
	{ HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1802
	{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1803
#if IS_ENABLED(CONFIG_HID_ROCCAT)
1804
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1805
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1806
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1807
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1808
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
1809
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
1810
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1811
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
1812
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1813
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1814
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
1815
#endif
1816
	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
J
Jiri Slaby 已提交
1817
	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1818
	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1819
	{ HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1820 1821
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) },
1822
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
J
Jiri Slaby 已提交
1823
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1824
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1825
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1826
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1827
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
1828
	{ HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
J
Jiri Slaby 已提交
1829
	{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1830
	{ HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
1831 1832
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1833 1834
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1835
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1836
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1837
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1838
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1839
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
1840
	{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
1841
	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1842
	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1843
	{ HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1844
	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1845 1846 1847
	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1848
	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1849
	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
1850
	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
1851
	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1852
	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
1853
	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1854 1855 1856
	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1857
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1858
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
1859
	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1860
	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1861
	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
1862
	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
1863
	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1864
	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1865
	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
1866
	{ HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1867
	{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
1868 1869
	{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
D
Don Prince 已提交
1870
	{ HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
J
Jiri Slaby 已提交
1871

J
Jiri Slaby 已提交
1872
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1873
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1874
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO2, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1875
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
J
Jiri Slaby 已提交
1876 1877 1878
	{ }
};

J
Jiri Slaby 已提交
1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911
struct hid_dynid {
	struct list_head list;
	struct hid_device_id id;
};

/**
 * store_new_id - add a new HID device ID to this driver and re-probe devices
 * @driver: target device driver
 * @buf: buffer for scanning device ID data
 * @count: input size
 *
 * Adds a new dynamic hid device ID to this driver,
 * and causes the driver to probe for all devices again.
 */
static ssize_t store_new_id(struct device_driver *drv, const char *buf,
		size_t count)
{
	struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
	struct hid_dynid *dynid;
	__u32 bus, vendor, product;
	unsigned long driver_data = 0;
	int ret;

	ret = sscanf(buf, "%x %x %x %lx",
			&bus, &vendor, &product, &driver_data);
	if (ret < 3)
		return -EINVAL;

	dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
	if (!dynid)
		return -ENOMEM;

	dynid->id.bus = bus;
1912
	dynid->id.group = HID_GROUP_ANY;
J
Jiri Slaby 已提交
1913 1914 1915 1916 1917 1918 1919 1920
	dynid->id.vendor = vendor;
	dynid->id.product = product;
	dynid->id.driver_data = driver_data;

	spin_lock(&hdrv->dyn_lock);
	list_add_tail(&dynid->list, &hdrv->dyn_list);
	spin_unlock(&hdrv->dyn_lock);

1921
	ret = driver_attach(&hdrv->driver);
J
Jiri Slaby 已提交
1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955

	return ret ? : count;
}
static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);

static void hid_free_dynids(struct hid_driver *hdrv)
{
	struct hid_dynid *dynid, *n;

	spin_lock(&hdrv->dyn_lock);
	list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
		list_del(&dynid->list);
		kfree(dynid);
	}
	spin_unlock(&hdrv->dyn_lock);
}

static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
		struct hid_driver *hdrv)
{
	struct hid_dynid *dynid;

	spin_lock(&hdrv->dyn_lock);
	list_for_each_entry(dynid, &hdrv->dyn_list, list) {
		if (hid_match_one_id(hdev, &dynid->id)) {
			spin_unlock(&hdrv->dyn_lock);
			return &dynid->id;
		}
	}
	spin_unlock(&hdrv->dyn_lock);

	return hid_match_id(hdev, hdrv->id_table);
}

J
Jiri Slaby 已提交
1956 1957 1958 1959 1960
static int hid_bus_match(struct device *dev, struct device_driver *drv)
{
	struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
	struct hid_device *hdev = container_of(dev, struct hid_device, dev);

1961
	return hid_match_device(hdev, hdrv) != NULL;
J
Jiri Slaby 已提交
1962 1963 1964 1965 1966 1967 1968 1969 1970 1971
}

static int hid_device_probe(struct device *dev)
{
	struct hid_driver *hdrv = container_of(dev->driver,
			struct hid_driver, driver);
	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
	const struct hid_device_id *id;
	int ret = 0;

1972 1973
	if (down_interruptible(&hdev->driver_lock))
		return -EINTR;
1974 1975 1976 1977 1978
	if (down_interruptible(&hdev->driver_input_lock)) {
		ret = -EINTR;
		goto unlock_driver_lock;
	}
	hdev->io_started = false;
1979

J
Jiri Slaby 已提交
1980
	if (!hdev->driver) {
J
Jiri Slaby 已提交
1981
		id = hid_match_device(hdev, hdrv);
1982
		if (id == NULL) {
1983 1984
			ret = -ENODEV;
			goto unlock;
1985
		}
J
Jiri Slaby 已提交
1986

J
Jiri Slaby 已提交
1987 1988 1989 1990
		hdev->driver = hdrv;
		if (hdrv->probe) {
			ret = hdrv->probe(hdev, id);
		} else { /* default probe */
1991
			ret = hid_open_report(hdev);
J
Jiri Slaby 已提交
1992
			if (!ret)
J
Jiri Slaby 已提交
1993
				ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
J
Jiri Slaby 已提交
1994
		}
1995 1996
		if (ret) {
			hid_close_report(hdev);
J
Jiri Slaby 已提交
1997
			hdev->driver = NULL;
1998
		}
J
Jiri Slaby 已提交
1999
	}
2000
unlock:
2001 2002 2003
	if (!hdev->io_started)
		up(&hdev->driver_input_lock);
unlock_driver_lock:
2004
	up(&hdev->driver_lock);
J
Jiri Slaby 已提交
2005 2006 2007 2008 2009 2010
	return ret;
}

static int hid_device_remove(struct device *dev)
{
	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2011
	struct hid_driver *hdrv;
2012
	int ret = 0;
2013 2014 2015

	if (down_interruptible(&hdev->driver_lock))
		return -EINTR;
2016 2017 2018 2019 2020
	if (down_interruptible(&hdev->driver_input_lock)) {
		ret = -EINTR;
		goto unlock_driver_lock;
	}
	hdev->io_started = false;
J
Jiri Slaby 已提交
2021

2022
	hdrv = hdev->driver;
J
Jiri Slaby 已提交
2023 2024 2025
	if (hdrv) {
		if (hdrv->remove)
			hdrv->remove(hdev);
J
Jiri Slaby 已提交
2026 2027
		else /* default remove */
			hid_hw_stop(hdev);
2028
		hid_close_report(hdev);
J
Jiri Slaby 已提交
2029 2030 2031
		hdev->driver = NULL;
	}

2032 2033 2034
	if (!hdev->io_started)
		up(&hdev->driver_input_lock);
unlock_driver_lock:
2035
	up(&hdev->driver_lock);
2036
	return ret;
J
Jiri Slaby 已提交
2037 2038
}

2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049
static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
			     char *buf)
{
	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
	int len;

	len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
		       hdev->bus, hdev->group, hdev->vendor, hdev->product);

	return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
}
2050
static DEVICE_ATTR_RO(modalias);
2051

2052 2053 2054
static struct attribute *hid_dev_attrs[] = {
	&dev_attr_modalias.attr,
	NULL,
2055
};
2056
ATTRIBUTE_GROUPS(hid_dev);
2057

J
Jiri Slaby 已提交
2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074
static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
{
	struct hid_device *hdev = container_of(dev, struct hid_device, dev);

	if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
			hdev->bus, hdev->vendor, hdev->product))
		return -ENOMEM;

	if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
		return -ENOMEM;

	if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
		return -ENOMEM;

	if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
		return -ENOMEM;

2075 2076
	if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
			   hdev->bus, hdev->group, hdev->vendor, hdev->product))
J
Jiri Slaby 已提交
2077 2078 2079 2080 2081 2082 2083
		return -ENOMEM;

	return 0;
}

static struct bus_type hid_bus_type = {
	.name		= "hid",
2084
	.dev_groups	= hid_dev_groups,
J
Jiri Slaby 已提交
2085 2086 2087 2088 2089 2090
	.match		= hid_bus_match,
	.probe		= hid_device_probe,
	.remove		= hid_device_remove,
	.uevent		= hid_uevent,
};

2091
/* a list of devices that shouldn't be handled by HID core at all */
J
Jiri Slaby 已提交
2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104
static const struct hid_device_id hid_ignore_list[] = {
	{ HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
2105 2106
	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
A
Alexey Klimov 已提交
2107
	{ HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
2108
	{ HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
J
Jiri Slaby 已提交
2109 2110 2111 2112 2113 2114
	{ HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
2115
	{ HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
J
Jiri Slaby 已提交
2116 2117
	{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
2118
	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
2119
	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
J
Jiri Slaby 已提交
2120
	{ HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
2121
	{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
2122
	{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
2123
	{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
J
Jiri Slaby 已提交
2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139
	{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
2140
	{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
J
Jiri Slaby 已提交
2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
2188 2189
	{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) },
J
Jiri Slaby 已提交
2190
	{ HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
2191
	{ HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
J
Jiri Slaby 已提交
2192
	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
2193
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
J
Jiri Slaby 已提交
2194
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
2195
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
J
Jiri Slaby 已提交
2196
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
2197
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
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	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
2199 2200 2201 2202 2203 2204
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
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	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
2208 2209 2210
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
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	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2213
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
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	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2219 2220 2221 2222 2223 2224 2225
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
2226
	{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
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	{ HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
2246
	{ HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
2247
	{ HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
2248 2249 2250 2251 2252 2253 2254 2255 2256 2257
#if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
#endif
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	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
	{ }
};

2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299
/**
 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
 *
 * There are composite devices for which we want to ignore only a certain
 * interface. This is a list of devices for which only the mouse interface will
 * be ignored. This allows a dedicated driver to take care of the interface.
 */
static const struct hid_device_id hid_mouse_ignore_list[] = {
	/* appletouch driver */
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2300 2301 2302
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
2303 2304 2305 2306 2307 2308
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
2309 2310 2311
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2312 2313 2314
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
2315 2316 2317 2318 2319 2320
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2321 2322 2323
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
2324 2325 2326
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
2327 2328 2329
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
2330 2331 2332 2333 2334
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
	{ }
};

2335
bool hid_ignore(struct hid_device *hdev)
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{
2337 2338 2339 2340 2341
	if (hdev->quirks & HID_QUIRK_NO_IGNORE)
		return false;
	if (hdev->quirks & HID_QUIRK_IGNORE)
		return true;

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	switch (hdev->vendor) {
	case USB_VENDOR_ID_CODEMERCS:
		/* ignore all Code Mercenaries IOWarrior devices */
		if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
				hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
			return true;
		break;
	case USB_VENDOR_ID_LOGITECH:
		if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
				hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
			return true;
2353 2354 2355 2356 2357 2358 2359 2360 2361 2362
		/*
		 * The Keene FM transmitter USB device has the same USB ID as
		 * the Logitech AudioHub Speaker, but it should ignore the hid.
		 * Check if the name is that of the Keene device.
		 * For reference: the name of the AudioHub is
		 * "HOLTEK  AudioHub Speaker".
		 */
		if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
			!strcmp(hdev->name, "HOLTEK  B-LINK USB Audio  "))
				return true;
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		break;
2364 2365 2366 2367 2368
	case USB_VENDOR_ID_SOUNDGRAPH:
		if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
		    hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
			return true;
		break;
2369 2370 2371 2372 2373
	case USB_VENDOR_ID_HANWANG:
		if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
		    hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
			return true;
		break;
2374 2375 2376 2377
	case USB_VENDOR_ID_JESS:
		if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
				hdev->type == HID_TYPE_USBNONE)
			return true;
2378 2379 2380 2381 2382 2383 2384 2385 2386 2387
		break;
	case USB_VENDOR_ID_DWAV:
		/* These are handled by usbtouchscreen. hdev->type is probably
		 * HID_TYPE_USBNONE, but we say !HID_TYPE_USBMOUSE to match
		 * usbtouchscreen. */
		if ((hdev->product == USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER ||
		     hdev->product == USB_DEVICE_ID_DWAV_TOUCHCONTROLLER) &&
		    hdev->type != HID_TYPE_USBMOUSE)
			return true;
		break;
2388 2389 2390 2391 2392 2393 2394 2395
	case USB_VENDOR_ID_VELLEMAN:
		/* These are not HID devices.  They are handled by comedi. */
		if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST &&
		     hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) ||
		    (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST &&
		     hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST))
			return true;
		break;
2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407
	case USB_VENDOR_ID_ATMEL_V_USB:
		/* Masterkit MA901 usb radio based on Atmel tiny85 chip and
		 * it has the same USB ID as many Atmel V-USB devices. This
		 * usb radio is handled by radio-ma901.c driver so we want
		 * ignore the hid. Check the name, bus, product and ignore
		 * if we have MA901 usb radio.
		 */
		if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB &&
			hdev->bus == BUS_USB &&
			strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0)
			return true;
		break;
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	}

2410 2411 2412 2413
	if (hdev->type == HID_TYPE_USBMOUSE &&
			hid_match_id(hdev, hid_mouse_ignore_list))
		return true;

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	return !!hid_match_id(hdev, hid_ignore_list);
}
2416
EXPORT_SYMBOL_GPL(hid_ignore);
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2417

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int hid_add_device(struct hid_device *hdev)
{
	static atomic_t id = ATOMIC_INIT(0);
	int ret;

	if (WARN_ON(hdev->status & HID_STAT_ADDED))
		return -EBUSY;

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	/* we need to kill them here, otherwise they will stay allocated to
	 * wait for coming driver */
2428
	if (hid_ignore(hdev))
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		return -ENODEV;

2431 2432 2433 2434 2435 2436 2437 2438 2439 2440
	/*
	 * Read the device report descriptor once and use as template
	 * for the driver-specific modifications.
	 */
	ret = hdev->ll_driver->parse(hdev);
	if (ret)
		return ret;
	if (!hdev->dev_rdesc)
		return -ENODEV;

2441 2442 2443 2444 2445 2446 2447 2448 2449 2450
	/*
	 * Scan generic devices for group information
	 */
	if (hid_ignore_special_drivers ||
	    !hid_match_id(hdev, hid_have_special_driver)) {
		ret = hid_scan_report(hdev);
		if (ret)
			hid_warn(hdev, "bad device descriptor (%d)\n", ret);
	}

2451 2452 2453 2454
	/* XXX hack, any other cleaner solution after the driver core
	 * is converted to allow more than 20 bytes as the device name? */
	dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
		     hdev->vendor, hdev->product, atomic_inc_return(&id));
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2456
	hid_debug_register(hdev, dev_name(&hdev->dev));
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	ret = device_add(&hdev->dev);
	if (!ret)
		hdev->status |= HID_STAT_ADDED;
2460 2461
	else
		hid_debug_unregister(hdev);
2462

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	return ret;
}
EXPORT_SYMBOL_GPL(hid_add_device);

/**
 * hid_allocate_device - allocate new hid device descriptor
 *
 * Allocate and initialize hid device, so that hid_destroy_device might be
 * used to free it.
 *
 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
 * error value.
 */
struct hid_device *hid_allocate_device(void)
{
	struct hid_device *hdev;
	int ret = -ENOMEM;

	hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
	if (hdev == NULL)
		return ERR_PTR(ret);

	device_initialize(&hdev->dev);
	hdev->dev.release = hid_device_release;
	hdev->dev.bus = &hid_bus_type;

2489
	hid_close_report(hdev);
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2491 2492
	init_waitqueue_head(&hdev->debug_wait);
	INIT_LIST_HEAD(&hdev->debug_list);
2493
	spin_lock_init(&hdev->debug_list_lock);
2494
	sema_init(&hdev->driver_lock, 1);
2495
	sema_init(&hdev->driver_input_lock, 1);
2496

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	return hdev;
}
EXPORT_SYMBOL_GPL(hid_allocate_device);

static void hid_remove_device(struct hid_device *hdev)
{
	if (hdev->status & HID_STAT_ADDED) {
		device_del(&hdev->dev);
2505
		hid_debug_unregister(hdev);
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		hdev->status &= ~HID_STAT_ADDED;
	}
2508 2509 2510
	kfree(hdev->dev_rdesc);
	hdev->dev_rdesc = NULL;
	hdev->dev_rsize = 0;
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}

/**
 * hid_destroy_device - free previously allocated device
 *
 * @hdev: hid device
 *
 * If you allocate hid_device through hid_allocate_device, you should ever
 * free by this function.
 */
void hid_destroy_device(struct hid_device *hdev)
{
	hid_remove_device(hdev);
	put_device(&hdev->dev);
}
EXPORT_SYMBOL_GPL(hid_destroy_device);

int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
		const char *mod_name)
{
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	int ret;

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	hdrv->driver.name = hdrv->name;
	hdrv->driver.bus = &hid_bus_type;
	hdrv->driver.owner = owner;
	hdrv->driver.mod_name = mod_name;

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	INIT_LIST_HEAD(&hdrv->dyn_list);
	spin_lock_init(&hdrv->dyn_lock);

	ret = driver_register(&hdrv->driver);
	if (ret)
		return ret;

	ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
	if (ret)
		driver_unregister(&hdrv->driver);

	return ret;
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}
EXPORT_SYMBOL_GPL(__hid_register_driver);

void hid_unregister_driver(struct hid_driver *hdrv)
{
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	driver_remove_file(&hdrv->driver, &driver_attr_new_id);
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	driver_unregister(&hdrv->driver);
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	hid_free_dynids(hdrv);
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}
EXPORT_SYMBOL_GPL(hid_unregister_driver);

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int hid_check_keys_pressed(struct hid_device *hid)
{
	struct hid_input *hidinput;
	int i;

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	if (!(hid->claimed & HID_CLAIMED_INPUT))
		return 0;

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	list_for_each_entry(hidinput, &hid->inputs, list) {
		for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
			if (hidinput->input->key[i])
				return 1;
	}

	return 0;
}

EXPORT_SYMBOL_GPL(hid_check_keys_pressed);

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static int __init hid_init(void)
{
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	int ret;

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	if (hid_debug)
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		pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
			"debugfs is now used for inspecting the device (report descriptor, reports)\n");
2587

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	ret = bus_register(&hid_bus_type);
	if (ret) {
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		pr_err("can't register hid bus\n");
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		goto err;
	}

	ret = hidraw_init();
	if (ret)
		goto err_bus;

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	hid_debug_init();

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	return 0;
err_bus:
	bus_unregister(&hid_bus_type);
err:
	return ret;
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}

static void __exit hid_exit(void)
{
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	hid_debug_exit();
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	hidraw_exit();
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	bus_unregister(&hid_bus_type);
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}

module_init(hid_init);
module_exit(hid_exit);

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MODULE_AUTHOR("Andreas Gal");
MODULE_AUTHOR("Vojtech Pavlik");
MODULE_AUTHOR("Jiri Kosina");
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MODULE_LICENSE(DRIVER_LICENSE);