lib/libu4bhid/usbhid.h

   1 /*      $NetBSD: usb.h,v 1.8 2000/08/13 22:22:02 augustss Exp $ */
   2
   3 /*
   4  * Copyright (c) 1999 Lennart Augustsson <augustss@netbsd.org>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  *
  28  * $FreeBSD: head/lib/libusbhid/usbhid.h 225839 2011-09-28 14:52:25Z mav $
  29  *
  30  */
  31
  32 #include <stdint.h>
  33
  34 typedef struct report_desc *report_desc_t;
  35
  36 typedef struct hid_data *hid_data_t;
  37
  38 typedef enum hid_kind {
  39         hid_input, hid_output, hid_feature, hid_collection, hid_endcollection
  40 } hid_kind_t;
  41
  42 typedef struct hid_item {
  43         /* Global */
  44         uint32_t _usage_page;
  45         int32_t logical_minimum;
  46         int32_t logical_maximum;
  47         int32_t physical_minimum;
  48         int32_t physical_maximum;
  49         int32_t unit_exponent;
  50         int32_t unit;
  51         int32_t report_size;
  52         int32_t report_ID;
  53 #define NO_REPORT_ID 0
  54         int32_t report_count;
  55         /* Local */
  56         uint32_t usage;
  57         int32_t usage_minimum;
  58         int32_t usage_maximum;
  59         int32_t designator_index;
  60         int32_t designator_minimum;
  61         int32_t designator_maximum;
  62         int32_t string_index;
  63         int32_t string_minimum;
  64         int32_t string_maximum;
  65         int32_t set_delimiter;
  66         /* Misc */
  67         int32_t collection;
  68         int     collevel;
  69         enum hid_kind kind;
  70         uint32_t flags;
  71         /* Location */
  72         uint32_t pos;
  73         /* unused */
  74         struct hid_item *next;
  75 } hid_item_t;
  76
  77 #define HID_PAGE(u) (((u) >> 16) & 0xffff)
  78 #define HID_USAGE(u) ((u) & 0xffff)
  79 #define HID_HAS_GET_SET_REPORT 1
  80
  81 __BEGIN_DECLS
  82
  83 /* Obtaining a report descriptor, descr.c: */
  84 report_desc_t hid_get_report_desc(int file);
  85 report_desc_t hid_use_report_desc(unsigned char *data, unsigned int size);
  86 void hid_dispose_report_desc(report_desc_t);
  87 int hid_get_report_id(int file);
  88 int hid_set_immed(int fd, int enable);
  89
  90 /* Parsing of a HID report descriptor, parse.c: */
  91 hid_data_t hid_start_parse(report_desc_t d, int kindset, int id);
  92 void hid_end_parse(hid_data_t s);
  93 int hid_get_item(hid_data_t s, hid_item_t *h);
  94 int hid_report_size(report_desc_t d, enum hid_kind k, int id);
  95 int hid_locate(report_desc_t d, unsigned int usage, enum hid_kind k,
  96     hid_item_t *h, int id);
  97
  98 /* Conversion to/from usage names, usage.c: */
  99 const char *hid_usage_page(int i);
 100 const char *hid_usage_in_page(unsigned int u);
 101 void hid_init(const char *file);
 102 int hid_parse_usage_in_page(const char *name);
 103 int hid_parse_usage_page(const char *name);
 104
 105 /* Extracting/insertion of data, data.c: */
 106 int32_t hid_get_data(const void *p, const hid_item_t *h);
 107 void hid_set_data(void *p, const hid_item_t *h, int32_t data);
 108 int hid_get_report(int fd, enum hid_kind k,
 109     unsigned char *data, unsigned int size);
 110 int hid_set_report(int fd, enum hid_kind k,
 111     unsigned char *data, unsigned int size);
 112
 113 __END_DECLS