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213 lines
6.2 KiB
213 lines
6.2 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
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/* |
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* Copyright (c) 1999-2000 Vojtech Pavlik |
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* |
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* Sponsored by SuSE |
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*/ |
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/* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* Should you need to contact me, the author, you can do so either by |
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* e-mail - mail your message to <[email protected]>, or by paper mail: |
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* Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic |
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*/ |
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#ifndef _UAPI_HIDDEV_H |
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#define _UAPI_HIDDEV_H |
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#include <linux/types.h> |
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/* |
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* The event structure itself |
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*/ |
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struct hiddev_event { |
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unsigned hid; |
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signed int value; |
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}; |
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struct hiddev_devinfo { |
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__u32 bustype; |
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__u32 busnum; |
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__u32 devnum; |
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__u32 ifnum; |
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__s16 vendor; |
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__s16 product; |
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__s16 version; |
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__u32 num_applications; |
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}; |
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struct hiddev_collection_info { |
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__u32 index; |
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__u32 type; |
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__u32 usage; |
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__u32 level; |
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}; |
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#define HID_STRING_SIZE 256 |
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struct hiddev_string_descriptor { |
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__s32 index; |
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char value[HID_STRING_SIZE]; |
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}; |
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struct hiddev_report_info { |
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__u32 report_type; |
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__u32 report_id; |
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__u32 num_fields; |
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}; |
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/* To do a GUSAGE/SUSAGE, fill in at least usage_code, report_type and |
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* report_id. Set report_id to REPORT_ID_UNKNOWN if the rest of the fields |
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* are unknown. Otherwise use a usage_ref struct filled in from a previous |
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* successful GUSAGE call to save time. To actually send a value to the |
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* device, perform a SUSAGE first, followed by a SREPORT. An INITREPORT or a |
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* GREPORT isn't necessary for a GUSAGE to return valid data. |
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*/ |
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#define HID_REPORT_ID_UNKNOWN 0xffffffff |
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#define HID_REPORT_ID_FIRST 0x00000100 |
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#define HID_REPORT_ID_NEXT 0x00000200 |
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#define HID_REPORT_ID_MASK 0x000000ff |
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#define HID_REPORT_ID_MAX 0x000000ff |
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#define HID_REPORT_TYPE_INPUT 1 |
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#define HID_REPORT_TYPE_OUTPUT 2 |
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#define HID_REPORT_TYPE_FEATURE 3 |
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#define HID_REPORT_TYPE_MIN 1 |
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#define HID_REPORT_TYPE_MAX 3 |
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struct hiddev_field_info { |
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__u32 report_type; |
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__u32 report_id; |
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__u32 field_index; |
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__u32 maxusage; |
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__u32 flags; |
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__u32 physical; /* physical usage for this field */ |
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__u32 logical; /* logical usage for this field */ |
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__u32 application; /* application usage for this field */ |
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__s32 logical_minimum; |
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__s32 logical_maximum; |
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__s32 physical_minimum; |
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__s32 physical_maximum; |
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__u32 unit_exponent; |
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__u32 unit; |
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}; |
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/* Fill in report_type, report_id and field_index to get the information on a |
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* field. |
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*/ |
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#define HID_FIELD_CONSTANT 0x001 |
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#define HID_FIELD_VARIABLE 0x002 |
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#define HID_FIELD_RELATIVE 0x004 |
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#define HID_FIELD_WRAP 0x008 |
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#define HID_FIELD_NONLINEAR 0x010 |
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#define HID_FIELD_NO_PREFERRED 0x020 |
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#define HID_FIELD_NULL_STATE 0x040 |
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#define HID_FIELD_VOLATILE 0x080 |
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#define HID_FIELD_BUFFERED_BYTE 0x100 |
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struct hiddev_usage_ref { |
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__u32 report_type; |
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__u32 report_id; |
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__u32 field_index; |
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__u32 usage_index; |
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__u32 usage_code; |
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__s32 value; |
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}; |
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/* hiddev_usage_ref_multi is used for sending multiple bytes to a control. |
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* It really manifests itself as setting the value of consecutive usages */ |
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#define HID_MAX_MULTI_USAGES 1024 |
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struct hiddev_usage_ref_multi { |
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struct hiddev_usage_ref uref; |
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__u32 num_values; |
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__s32 values[HID_MAX_MULTI_USAGES]; |
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}; |
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/* FIELD_INDEX_NONE is returned in read() data from the kernel when flags |
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* is set to (HIDDEV_FLAG_UREF | HIDDEV_FLAG_REPORT) and a new report has |
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* been sent by the device |
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*/ |
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#define HID_FIELD_INDEX_NONE 0xffffffff |
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/* |
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* Protocol version. |
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*/ |
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#define HID_VERSION 0x010004 |
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/* |
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* IOCTLs (0x00 - 0x7f) |
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*/ |
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#define HIDIOCGVERSION _IOR('H', 0x01, int) |
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#define HIDIOCAPPLICATION _IO('H', 0x02) |
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#define HIDIOCGDEVINFO _IOR('H', 0x03, struct hiddev_devinfo) |
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#define HIDIOCGSTRING _IOR('H', 0x04, struct hiddev_string_descriptor) |
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#define HIDIOCINITREPORT _IO('H', 0x05) |
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#define HIDIOCGNAME(len) _IOC(_IOC_READ, 'H', 0x06, len) |
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#define HIDIOCGREPORT _IOW('H', 0x07, struct hiddev_report_info) |
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#define HIDIOCSREPORT _IOW('H', 0x08, struct hiddev_report_info) |
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#define HIDIOCGREPORTINFO _IOWR('H', 0x09, struct hiddev_report_info) |
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#define HIDIOCGFIELDINFO _IOWR('H', 0x0A, struct hiddev_field_info) |
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#define HIDIOCGUSAGE _IOWR('H', 0x0B, struct hiddev_usage_ref) |
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#define HIDIOCSUSAGE _IOW('H', 0x0C, struct hiddev_usage_ref) |
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#define HIDIOCGUCODE _IOWR('H', 0x0D, struct hiddev_usage_ref) |
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#define HIDIOCGFLAG _IOR('H', 0x0E, int) |
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#define HIDIOCSFLAG _IOW('H', 0x0F, int) |
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#define HIDIOCGCOLLECTIONINDEX _IOW('H', 0x10, struct hiddev_usage_ref) |
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#define HIDIOCGCOLLECTIONINFO _IOWR('H', 0x11, struct hiddev_collection_info) |
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#define HIDIOCGPHYS(len) _IOC(_IOC_READ, 'H', 0x12, len) |
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/* For writing/reading to multiple/consecutive usages */ |
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#define HIDIOCGUSAGES _IOWR('H', 0x13, struct hiddev_usage_ref_multi) |
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#define HIDIOCSUSAGES _IOW('H', 0x14, struct hiddev_usage_ref_multi) |
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/* |
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* Flags to be used in HIDIOCSFLAG |
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*/ |
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#define HIDDEV_FLAG_UREF 0x1 |
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#define HIDDEV_FLAG_REPORT 0x2 |
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#define HIDDEV_FLAGS 0x3 |
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/* To traverse the input report descriptor info for a HID device, perform the |
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* following: |
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* |
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* rinfo.report_type = HID_REPORT_TYPE_INPUT; |
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* rinfo.report_id = HID_REPORT_ID_FIRST; |
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* ret = ioctl(fd, HIDIOCGREPORTINFO, &rinfo); |
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* |
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* while (ret >= 0) { |
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* for (i = 0; i < rinfo.num_fields; i++) { |
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* finfo.report_type = rinfo.report_type; |
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* finfo.report_id = rinfo.report_id; |
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* finfo.field_index = i; |
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* ioctl(fd, HIDIOCGFIELDINFO, &finfo); |
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* for (j = 0; j < finfo.maxusage; j++) { |
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* uref.report_type = rinfo.report_type; |
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* uref.report_id = rinfo.report_id; |
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* uref.field_index = i; |
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* uref.usage_index = j; |
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* ioctl(fd, HIDIOCGUCODE, &uref); |
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* ioctl(fd, HIDIOCGUSAGE, &uref); |
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* } |
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* } |
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* rinfo.report_id |= HID_REPORT_ID_NEXT; |
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* ret = ioctl(fd, HIDIOCGREPORTINFO, &rinfo); |
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* } |
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*/ |
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#endif /* _UAPI_HIDDEV_H */
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