source: svn/trunk/newcon3bcm2_21bu/toolchain/mipsel-linux-uclibc/include/linux/hiddev.h @ 2

Last change on this file since 2 was 2, checked in by jglee, 11 years ago

first commit
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1#ifndef _HIDDEV_H
2#define _HIDDEV_H
3
4/*
5 *
6 *  Copyright (c) 1999-2000 Vojtech Pavlik
7 *
8 *  Sponsored by SuSE
9 */
10
11/*
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 *
26 * Should you need to contact me, the author, you can do so either by
27 * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
28 * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
29 */
30
31/*
32 * The event structure itself
33 */
34
35#include <asm/types.h>
36
37struct hiddev_event {
38        unsigned hid;
39        signed int value;
40};
41
42struct hiddev_devinfo {
43        __u32 bustype;
44        __u32 busnum;
45        __u32 devnum;
46        __u32 ifnum;
47        __s16 vendor;
48        __s16 product;
49        __s16 version;
50        __u32 num_applications;
51};
52
53struct hiddev_collection_info {
54        __u32 index;
55        __u32 type;
56        __u32 usage;
57        __u32 level;
58};
59
60#define HID_STRING_SIZE 256
61struct hiddev_string_descriptor {
62        __s32 index;
63        char value[HID_STRING_SIZE];
64};
65
66struct hiddev_report_info {
67        __u32 report_type;
68        __u32 report_id;
69        __u32 num_fields;
70};
71
72/* To do a GUSAGE/SUSAGE, fill in at least usage_code,  report_type and
73 * report_id.  Set report_id to REPORT_ID_UNKNOWN if the rest of the fields
74 * are unknown.  Otherwise use a usage_ref struct filled in from a previous
75 * successful GUSAGE call to save time.  To actually send a value to the
76 * device, perform a SUSAGE first, followed by a SREPORT.  An INITREPORT or a
77 * GREPORT isn't necessary for a GUSAGE to return valid data.
78 */
79#define HID_REPORT_ID_UNKNOWN 0xffffffff
80#define HID_REPORT_ID_FIRST   0x00000100
81#define HID_REPORT_ID_NEXT    0x00000200
82#define HID_REPORT_ID_MASK    0x000000ff
83#define HID_REPORT_ID_MAX     0x000000ff
84
85#define HID_REPORT_TYPE_INPUT   1
86#define HID_REPORT_TYPE_OUTPUT  2
87#define HID_REPORT_TYPE_FEATURE 3
88#define HID_REPORT_TYPE_MIN     1
89#define HID_REPORT_TYPE_MAX     3
90
91struct hiddev_field_info {
92        __u32 report_type;
93        __u32 report_id;
94        __u32 field_index;
95        __u32 maxusage;
96        __u32 flags;
97        __u32 physical;         /* physical usage for this field */
98        __u32 logical;          /* logical usage for this field */
99        __u32 application;              /* application usage for this field */
100        __s32 logical_minimum;
101        __s32 logical_maximum;
102        __s32 physical_minimum;
103        __s32 physical_maximum;
104        __u32 unit_exponent;
105        __u32 unit;
106};
107
108/* Fill in report_type, report_id and field_index to get the information on a
109 * field.
110 */
111#define HID_FIELD_CONSTANT              0x001
112#define HID_FIELD_VARIABLE              0x002
113#define HID_FIELD_RELATIVE              0x004
114#define HID_FIELD_WRAP                  0x008   
115#define HID_FIELD_NONLINEAR             0x010
116#define HID_FIELD_NO_PREFERRED          0x020
117#define HID_FIELD_NULL_STATE            0x040
118#define HID_FIELD_VOLATILE              0x080
119#define HID_FIELD_BUFFERED_BYTE         0x100
120
121struct hiddev_usage_ref {
122        __u32 report_type;
123        __u32 report_id;
124        __u32 field_index;
125        __u32 usage_index;
126        __u32 usage_code;
127        __s32 value;
128};
129
130/* hiddev_usage_ref_multi is used for sending multiple bytes to a control.
131 * It really manifests itself as setting the value of consecutive usages */
132#define HID_MAX_MULTI_USAGES 1024
133struct hiddev_usage_ref_multi {
134        struct hiddev_usage_ref uref;
135        __u32 num_values;
136        __s32 values[HID_MAX_MULTI_USAGES];
137};
138
139/* FIELD_INDEX_NONE is returned in read() data from the kernel when flags
140 * is set to (HIDDEV_FLAG_UREF | HIDDEV_FLAG_REPORT) and a new report has
141 * been sent by the device
142 */
143#define HID_FIELD_INDEX_NONE 0xffffffff
144
145/*
146 * Protocol version.
147 */
148
149#define HID_VERSION             0x010004
150
151/*
152 * IOCTLs (0x00 - 0x7f)
153 */
154
155#define HIDIOCGVERSION          _IOR('H', 0x01, int)
156#define HIDIOCAPPLICATION       _IO('H', 0x02)
157#define HIDIOCGDEVINFO          _IOR('H', 0x03, struct hiddev_devinfo)
158#define HIDIOCGSTRING           _IOR('H', 0x04, struct hiddev_string_descriptor)
159#define HIDIOCINITREPORT        _IO('H', 0x05)
160#define HIDIOCGNAME(len)        _IOC(_IOC_READ, 'H', 0x06, len)
161#define HIDIOCGREPORT           _IOW('H', 0x07, struct hiddev_report_info)
162#define HIDIOCSREPORT           _IOW('H', 0x08, struct hiddev_report_info)
163#define HIDIOCGREPORTINFO       _IOWR('H', 0x09, struct hiddev_report_info)
164#define HIDIOCGFIELDINFO        _IOWR('H', 0x0A, struct hiddev_field_info)
165#define HIDIOCGUSAGE            _IOWR('H', 0x0B, struct hiddev_usage_ref)
166#define HIDIOCSUSAGE            _IOW('H', 0x0C, struct hiddev_usage_ref)
167#define HIDIOCGUCODE            _IOWR('H', 0x0D, struct hiddev_usage_ref)
168#define HIDIOCGFLAG             _IOR('H', 0x0E, int)
169#define HIDIOCSFLAG             _IOW('H', 0x0F, int)
170#define HIDIOCGCOLLECTIONINDEX  _IOW('H', 0x10, struct hiddev_usage_ref)
171#define HIDIOCGCOLLECTIONINFO   _IOWR('H', 0x11, struct hiddev_collection_info)
172#define HIDIOCGPHYS(len)        _IOC(_IOC_READ, 'H', 0x12, len)
173
174/* For writing/reading to multiple/consecutive usages */
175#define HIDIOCGUSAGES           _IOWR('H', 0x13, struct hiddev_usage_ref_multi)
176#define HIDIOCSUSAGES           _IOW('H', 0x14, struct hiddev_usage_ref_multi)
177
178/*
179 * Flags to be used in HIDIOCSFLAG
180 */
181#define HIDDEV_FLAG_UREF        0x1
182#define HIDDEV_FLAG_REPORT      0x2
183#define HIDDEV_FLAGS            0x3
184
185/* To traverse the input report descriptor info for a HID device, perform the
186 * following:
187 *
188 *  rinfo.report_type = HID_REPORT_TYPE_INPUT;
189 *  rinfo.report_id = HID_REPORT_ID_FIRST;
190 *  ret = ioctl(fd, HIDIOCGREPORTINFO, &rinfo);
191 *
192 *  while (ret >= 0) {
193 *      for (i = 0; i < rinfo.num_fields; i++) {
194 *          finfo.report_type = rinfo.report_type;
195 *          finfo.report_id = rinfo.report_id;
196 *          finfo.field_index = i;
197 *          ioctl(fd, HIDIOCGFIELDINFO, &finfo);
198 *          for (j = 0; j < finfo.maxusage; j++) {
199 *              uref.field_index = i;
200 *              uref.usage_index = j;
201 *              ioctl(fd, HIDIOCGUCODE, &uref);
202 *              ioctl(fd, HIDIOCGUSAGE, &uref);
203 *          }
204 *      }
205 *      rinfo.report_id |= HID_REPORT_ID_NEXT;
206 *      ret = ioctl(fd, HIDIOCGREPORTINFO, &rinfo);
207 *  }
208 */
209
210#endif
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