101 lines
3.5 KiB
C
101 lines
3.5 KiB
C
/* $OpenBSD: usbhid.h,v 1.9 2021/05/30 19:54:52 jcs Exp $ */
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/* $NetBSD: usbhid.h,v 1.1 2001/12/28 17:45:27 augustss 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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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, hid_output, hid_feature, hid_collection, 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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uint32_t _usage_page;
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int32_t logical_minimum;
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int32_t logical_maximum;
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int32_t physical_minimum;
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int32_t physical_maximum;
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int32_t unit_exponent;
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int32_t unit;
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int32_t report_size;
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int32_t report_ID;
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#define NO_REPORT_ID 0
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int32_t report_count;
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/* Local */
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uint32_t usage;
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int32_t usage_minimum;
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int32_t usage_maximum;
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int32_t designator_index;
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int32_t designator_minimum;
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int32_t designator_maximum;
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int32_t string_index;
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int32_t string_minimum;
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int32_t string_maximum;
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int32_t set_delimiter;
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/* Misc */
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int32_t collection;
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int collevel;
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enum hid_kind kind;
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uint32_t flags;
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/* Location */
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uint32_t pos;
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/* unused */
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struct hid_item *next;
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} hid_item_t;
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#define HID_PAGE(u) (((u) >> 16) & 0xffff)
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#define HID_USAGE(u) ((u) & 0xffff)
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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(unsigned char *data, unsigned int size);
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void hid_dispose_report_desc(report_desc_t);
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void hid_get_report_desc_data(report_desc_t, uint8_t **, uint32_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,
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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_start(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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int32_t 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, int32_t data);
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