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 * $FreeBSD$ 29 * 30 */ 31 32 #include <sys/cdefs.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 = 0, 40 hid_output = 1, 41 hid_feature = 2, 42 hid_collection, 43 hid_endcollection 44 } hid_kind_t; 45 46 typedef struct hid_item { 47 /* Global */ 48 unsigned int _usage_page; 49 int logical_minimum; 50 int logical_maximum; 51 int physical_minimum; 52 int physical_maximum; 53 int unit_exponent; 54 int unit; 55 int report_size; 56 int report_ID; 57 #define NO_REPORT_ID 0 58 int report_count; 59 /* Local */ 60 unsigned int usage; 61 int usage_minimum; 62 int usage_maximum; 63 int designator_index; 64 int designator_minimum; 65 int designator_maximum; 66 int string_index; 67 int string_minimum; 68 int string_maximum; 69 int set_delimiter; 70 /* Misc */ 71 int collection; 72 int collevel; 73 enum hid_kind kind; 74 unsigned int flags; 75 /* Absolute data position (bits) */ 76 unsigned int pos; 77 /* */ 78 struct hid_item *next; 79 } hid_item_t; 80 81 #define HID_PAGE(u) (((u) >> 16) & 0xffff) 82 #define HID_USAGE(u) ((u) & 0xffff) 83 84 __BEGIN_DECLS 85 86 /* Obtaining a report descriptor, descr.c: */ 87 report_desc_t hid_get_report_desc(int file); 88 report_desc_t hid_use_report_desc(unsigned char *data, unsigned int size); 89 void hid_dispose_report_desc(report_desc_t); 90 91 /* Parsing of a HID report descriptor, parse.c: */ 92 hid_data_t hid_start_parse(report_desc_t d, int kindset, int id); 93 void hid_end_parse(hid_data_t s); 94 int hid_get_item(hid_data_t s, hid_item_t *h); 95 int hid_report_size(report_desc_t d, enum hid_kind k, int id); 96 int hid_locate(report_desc_t d, unsigned int usage, enum hid_kind k, 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 int hid_get_data(const void *p, const hid_item_t *h); 107 void hid_set_data(void *p, const hid_item_t *h, int data); 108 109 __END_DECLS 110