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, hid_output, hid_feature, hid_collection, hid_endcollection 40 } hid_kind_t; 41 42 typedef struct hid_item { 43 /* Global */ 44 int _usage_page; 45 int logical_minimum; 46 int logical_maximum; 47 int physical_minimum; 48 int physical_maximum; 49 int unit_exponent; 50 int unit; 51 int report_size; 52 int report_ID; 53 #define NO_REPORT_ID 0 54 int report_count; 55 /* Local */ 56 unsigned int usage; 57 int usage_minimum; 58 int usage_maximum; 59 int designator_index; 60 int designator_minimum; 61 int designator_maximum; 62 int string_index; 63 int string_minimum; 64 int string_maximum; 65 int set_delimiter; 66 /* Misc */ 67 int collection; 68 int collevel; 69 enum hid_kind kind; 70 unsigned int flags; 71 /* Absolute data position (bits) */ 72 unsigned int pos; 73 /* */ 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 80 /* Obtaining a report descriptor, descr.c: */ 81 report_desc_t hid_get_report_desc(int file); 82 report_desc_t hid_use_report_desc(unsigned char *data, unsigned int size); 83 void hid_dispose_report_desc(report_desc_t); 84 85 /* Parsing of a HID report descriptor, parse.c: */ 86 hid_data_t hid_start_parse(report_desc_t d, int kindset); 87 void hid_end_parse(hid_data_t s); 88 int hid_get_item(hid_data_t s, hid_item_t *h); 89 int hid_report_size(report_desc_t d, unsigned int id, enum hid_kind k); 90 int hid_locate(report_desc_t d, unsigned int usage, enum hid_kind k, hid_item_t *h); 91 92 /* Conversion to/from usage names, usage.c: */ 93 int hid_parse_usage_page(const char *name); 94 int hid_parse_usage_in_page(const char *name); 95 const char *hid_usage_page(int i); 96 const char *hid_usage_in_page(unsigned int u); 97 void hid_init(const char *file); 98 99 /* Extracting/insertion of data, data.c: */ 100 int hid_get_data(const void *p, const hid_item_t *h); 101 void hid_set_data(void *p, const hid_item_t *h, int data); 102