113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/* $NetBSD: usbhid.h,v 1.6 2016/01/22 23:51:23 dholland Exp $ */
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/*
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* Copyright (c) 1999 Lennart Augustsson <augustss@NetBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _USBHID_H_
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#define _USBHID_H_
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#include <sys/cdefs.h>
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#include <stdint.h>
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typedef struct report_desc *report_desc_t;
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typedef struct hid_data *hid_data_t;
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typedef enum hid_kind {
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hid_input = 0,
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hid_output = 1,
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hid_feature = 2,
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hid_collection,
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hid_endcollection
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} hid_kind_t;
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typedef struct hid_item {
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/* Global */
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int _usage_page;
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int logical_minimum;
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int logical_maximum;
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int physical_minimum;
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int physical_maximum;
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int unit_exponent;
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int unit;
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int report_size;
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int report_ID;
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#define NO_REPORT_ID 0
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int report_count;
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/* Local */
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unsigned int usage;
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int usage_minimum;
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int usage_maximum;
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int designator_index;
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int designator_minimum;
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int designator_maximum;
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int string_index;
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int string_minimum;
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int string_maximum;
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int set_delimiter;
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/* Misc */
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int collection;
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int collevel;
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enum hid_kind kind;
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unsigned int flags;
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/* Absolute data position (bits) */
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unsigned int pos;
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/* */
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struct hid_item *next;
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} hid_item_t;
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#define HID_PAGE(u) (((uint32_t)(u) >> 16) & 0xffff)
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#define HID_USAGE(u) ((u) & 0xffff)
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__BEGIN_DECLS
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/* Obtaining a report descriptor, descr.c: */
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report_desc_t hid_get_report_desc(int file);
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report_desc_t hid_use_report_desc(const uint8_t *data, unsigned int size);
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void hid_dispose_report_desc(report_desc_t);
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/* Parsing of a HID report descriptor, parse.c: */
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hid_data_t hid_start_parse(report_desc_t d, int kindset, int id);
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void hid_end_parse(hid_data_t s);
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int hid_get_item(hid_data_t s, hid_item_t *h);
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int hid_report_size(report_desc_t d, enum hid_kind k, int id);
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int hid_locate(report_desc_t d, unsigned int usage, enum hid_kind k, hid_item_t *h, int id);
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/* Conversion to/from usage names, usage.c: */
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const char *hid_usage_page(int i);
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const char *hid_usage_in_page(unsigned int u);
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void hid_init(const char *file);
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int hid_parse_usage_in_page(const char *name);
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int hid_parse_usage_page(const char *name);
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/* Extracting/insertion of data, data.c: */
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int hid_get_data(const void *p, const hid_item_t *h);
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void hid_set_data(void *p, const hid_item_t *h, int data);
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__END_DECLS
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#endif /* _USBHID_H_ */
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