838 lines
24 KiB
C
838 lines
24 KiB
C
#ifndef __HID_H
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#define __HID_H
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/*
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* Copyright (c) 1999 Andreas Gal
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* Copyright (c) 2000-2001 Vojtech Pavlik
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* Copyright (c) 2006-2007 Jiri Kosina
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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 <vojtech@ucw.cz>, or by paper mail:
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* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
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*/
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/*
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* USB HID (Human Interface Device) interface class code
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*/
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#define USB_INTERFACE_CLASS_HID 3
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/*
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* USB HID interface subclass and protocol codes
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*/
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#define USB_INTERFACE_SUBCLASS_BOOT 1
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#define USB_INTERFACE_PROTOCOL_KEYBOARD 1
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#define USB_INTERFACE_PROTOCOL_MOUSE 2
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/*
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* HID class requests
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*/
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#define HID_REQ_GET_REPORT 0x01
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#define HID_REQ_GET_IDLE 0x02
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#define HID_REQ_GET_PROTOCOL 0x03
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#define HID_REQ_SET_REPORT 0x09
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#define HID_REQ_SET_IDLE 0x0A
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#define HID_REQ_SET_PROTOCOL 0x0B
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/*
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* HID class descriptor types
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*/
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#define HID_DT_HID (USB_TYPE_CLASS | 0x01)
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#define HID_DT_REPORT (USB_TYPE_CLASS | 0x02)
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#define HID_DT_PHYSICAL (USB_TYPE_CLASS | 0x03)
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#define HID_MAX_DESCRIPTOR_SIZE 4096
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#ifdef __KERNEL__
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#include <linux/types.h>
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#include <linux/slab.h>
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#include <linux/list.h>
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#include <linux/mod_devicetable.h> /* hid_device_id */
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#include <linux/timer.h>
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#include <linux/workqueue.h>
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#include <linux/input.h>
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/*
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* We parse each description item into this structure. Short items data
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* values are expanded to 32-bit signed int, long items contain a pointer
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* into the data area.
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*/
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struct hid_item {
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unsigned format;
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__u8 size;
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__u8 type;
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__u8 tag;
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union {
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__u8 u8;
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__s8 s8;
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__u16 u16;
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__s16 s16;
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__u32 u32;
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__s32 s32;
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__u8 *longdata;
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} data;
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};
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/*
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* HID report item format
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*/
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#define HID_ITEM_FORMAT_SHORT 0
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#define HID_ITEM_FORMAT_LONG 1
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/*
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* Special tag indicating long items
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*/
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#define HID_ITEM_TAG_LONG 15
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/*
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* HID report descriptor item type (prefix bit 2,3)
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*/
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#define HID_ITEM_TYPE_MAIN 0
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#define HID_ITEM_TYPE_GLOBAL 1
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#define HID_ITEM_TYPE_LOCAL 2
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#define HID_ITEM_TYPE_RESERVED 3
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/*
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* HID report descriptor main item tags
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*/
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#define HID_MAIN_ITEM_TAG_INPUT 8
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#define HID_MAIN_ITEM_TAG_OUTPUT 9
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#define HID_MAIN_ITEM_TAG_FEATURE 11
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#define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION 10
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#define HID_MAIN_ITEM_TAG_END_COLLECTION 12
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/*
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* HID report descriptor main item contents
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*/
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#define HID_MAIN_ITEM_CONSTANT 0x001
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#define HID_MAIN_ITEM_VARIABLE 0x002
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#define HID_MAIN_ITEM_RELATIVE 0x004
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#define HID_MAIN_ITEM_WRAP 0x008
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#define HID_MAIN_ITEM_NONLINEAR 0x010
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#define HID_MAIN_ITEM_NO_PREFERRED 0x020
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#define HID_MAIN_ITEM_NULL_STATE 0x040
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#define HID_MAIN_ITEM_VOLATILE 0x080
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#define HID_MAIN_ITEM_BUFFERED_BYTE 0x100
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/*
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* HID report descriptor collection item types
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*/
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#define HID_COLLECTION_PHYSICAL 0
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#define HID_COLLECTION_APPLICATION 1
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#define HID_COLLECTION_LOGICAL 2
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/*
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* HID report descriptor global item tags
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*/
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#define HID_GLOBAL_ITEM_TAG_USAGE_PAGE 0
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#define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM 1
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#define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM 2
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#define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM 3
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#define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM 4
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#define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT 5
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#define HID_GLOBAL_ITEM_TAG_UNIT 6
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#define HID_GLOBAL_ITEM_TAG_REPORT_SIZE 7
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#define HID_GLOBAL_ITEM_TAG_REPORT_ID 8
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#define HID_GLOBAL_ITEM_TAG_REPORT_COUNT 9
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#define HID_GLOBAL_ITEM_TAG_PUSH 10
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#define HID_GLOBAL_ITEM_TAG_POP 11
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/*
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* HID report descriptor local item tags
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*/
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#define HID_LOCAL_ITEM_TAG_USAGE 0
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#define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM 1
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#define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM 2
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#define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX 3
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#define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM 4
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#define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM 5
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#define HID_LOCAL_ITEM_TAG_STRING_INDEX 7
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#define HID_LOCAL_ITEM_TAG_STRING_MINIMUM 8
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#define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM 9
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#define HID_LOCAL_ITEM_TAG_DELIMITER 10
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/*
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* HID usage tables
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*/
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#define HID_USAGE_PAGE 0xffff0000
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#define HID_UP_UNDEFINED 0x00000000
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#define HID_UP_GENDESK 0x00010000
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#define HID_UP_SIMULATION 0x00020000
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#define HID_UP_KEYBOARD 0x00070000
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#define HID_UP_LED 0x00080000
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#define HID_UP_BUTTON 0x00090000
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#define HID_UP_ORDINAL 0x000a0000
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#define HID_UP_CONSUMER 0x000c0000
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#define HID_UP_DIGITIZER 0x000d0000
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#define HID_UP_PID 0x000f0000
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#define HID_UP_HPVENDOR 0xff7f0000
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#define HID_UP_MSVENDOR 0xff000000
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#define HID_UP_CUSTOM 0x00ff0000
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#define HID_UP_LOGIVENDOR 0xffbc0000
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#define HID_USAGE 0x0000ffff
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#define HID_GD_POINTER 0x00010001
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#define HID_GD_MOUSE 0x00010002
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#define HID_GD_JOYSTICK 0x00010004
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#define HID_GD_GAMEPAD 0x00010005
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#define HID_GD_KEYBOARD 0x00010006
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#define HID_GD_KEYPAD 0x00010007
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#define HID_GD_MULTIAXIS 0x00010008
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#define HID_GD_X 0x00010030
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#define HID_GD_Y 0x00010031
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#define HID_GD_Z 0x00010032
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#define HID_GD_RX 0x00010033
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#define HID_GD_RY 0x00010034
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#define HID_GD_RZ 0x00010035
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#define HID_GD_SLIDER 0x00010036
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#define HID_GD_DIAL 0x00010037
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#define HID_GD_WHEEL 0x00010038
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#define HID_GD_HATSWITCH 0x00010039
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#define HID_GD_BUFFER 0x0001003a
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#define HID_GD_BYTECOUNT 0x0001003b
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#define HID_GD_MOTION 0x0001003c
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#define HID_GD_START 0x0001003d
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#define HID_GD_SELECT 0x0001003e
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#define HID_GD_VX 0x00010040
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#define HID_GD_VY 0x00010041
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#define HID_GD_VZ 0x00010042
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#define HID_GD_VBRX 0x00010043
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#define HID_GD_VBRY 0x00010044
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#define HID_GD_VBRZ 0x00010045
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#define HID_GD_VNO 0x00010046
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#define HID_GD_FEATURE 0x00010047
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#define HID_GD_UP 0x00010090
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#define HID_GD_DOWN 0x00010091
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#define HID_GD_RIGHT 0x00010092
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#define HID_GD_LEFT 0x00010093
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#define HID_DG_DIGITIZER 0x000d0001
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#define HID_DG_PEN 0x000d0002
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#define HID_DG_LIGHTPEN 0x000d0003
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#define HID_DG_TOUCHSCREEN 0x000d0004
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#define HID_DG_TOUCHPAD 0x000d0005
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#define HID_DG_STYLUS 0x000d0020
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#define HID_DG_PUCK 0x000d0021
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#define HID_DG_FINGER 0x000d0022
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#define HID_DG_TIPPRESSURE 0x000d0030
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#define HID_DG_BARRELPRESSURE 0x000d0031
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#define HID_DG_INRANGE 0x000d0032
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#define HID_DG_TOUCH 0x000d0033
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#define HID_DG_UNTOUCH 0x000d0034
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#define HID_DG_TAP 0x000d0035
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#define HID_DG_TABLETFUNCTIONKEY 0x000d0039
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#define HID_DG_PROGRAMCHANGEKEY 0x000d003a
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#define HID_DG_INVERT 0x000d003c
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#define HID_DG_TIPSWITCH 0x000d0042
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#define HID_DG_TIPSWITCH2 0x000d0043
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#define HID_DG_BARRELSWITCH 0x000d0044
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#define HID_DG_ERASER 0x000d0045
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#define HID_DG_TABLETPICK 0x000d0046
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/*
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* as of May 20, 2009 the usages below are not yet in the official USB spec
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* but are being pushed by Microsft as described in their paper "Digitizer
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* Drivers for Windows Touch and Pen-Based Computers"
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*/
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#define HID_DG_CONFIDENCE 0x000d0047
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#define HID_DG_WIDTH 0x000d0048
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#define HID_DG_HEIGHT 0x000d0049
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#define HID_DG_CONTACTID 0x000d0051
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#define HID_DG_INPUTMODE 0x000d0052
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#define HID_DG_DEVICEINDEX 0x000d0053
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#define HID_DG_CONTACTCOUNT 0x000d0054
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#define HID_DG_CONTACTMAX 0x000d0055
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/*
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* HID report types --- Ouch! HID spec says 1 2 3!
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*/
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#define HID_INPUT_REPORT 0
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#define HID_OUTPUT_REPORT 1
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#define HID_FEATURE_REPORT 2
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/*
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* HID connect requests
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*/
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#define HID_CONNECT_HIDINPUT 0x01
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#define HID_CONNECT_HIDINPUT_FORCE 0x02
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#define HID_CONNECT_HIDRAW 0x04
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#define HID_CONNECT_HIDDEV 0x08
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#define HID_CONNECT_HIDDEV_FORCE 0x10
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#define HID_CONNECT_FF 0x20
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#define HID_CONNECT_DEFAULT (HID_CONNECT_HIDINPUT|HID_CONNECT_HIDRAW| \
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HID_CONNECT_HIDDEV|HID_CONNECT_FF)
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/*
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* HID device quirks.
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*/
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/*
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* Increase this if you need to configure more HID quirks at module load time
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*/
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#define MAX_USBHID_BOOT_QUIRKS 4
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#define HID_QUIRK_INVERT 0x00000001
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#define HID_QUIRK_NOTOUCH 0x00000002
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#define HID_QUIRK_IGNORE 0x00000004
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#define HID_QUIRK_NOGET 0x00000008
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#define HID_QUIRK_BADPAD 0x00000020
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#define HID_QUIRK_MULTI_INPUT 0x00000040
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#define HID_QUIRK_SKIP_OUTPUT_REPORTS 0x00010000
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#define HID_QUIRK_FULLSPEED_INTERVAL 0x10000000
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#define HID_QUIRK_NO_INIT_REPORTS 0x20000000
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/*
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* This is the global environment of the parser. This information is
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* persistent for main-items. The global environment can be saved and
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* restored with PUSH/POP statements.
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*/
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struct hid_global {
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unsigned usage_page;
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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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__s32 unit_exponent;
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unsigned unit;
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unsigned report_id;
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unsigned report_size;
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unsigned report_count;
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};
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/*
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* This is the local environment. It is persistent up the next main-item.
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*/
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#define HID_MAX_USAGES 12288
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#define HID_DEFAULT_NUM_COLLECTIONS 16
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struct hid_local {
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unsigned usage[HID_MAX_USAGES]; /* usage array */
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unsigned collection_index[HID_MAX_USAGES]; /* collection index array */
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unsigned usage_index;
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unsigned usage_minimum;
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unsigned delimiter_depth;
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unsigned delimiter_branch;
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};
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/*
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* This is the collection stack. We climb up the stack to determine
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* application and function of each field.
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*/
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struct hid_collection {
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unsigned type;
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unsigned usage;
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unsigned level;
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};
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struct hid_usage {
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unsigned hid; /* hid usage code */
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unsigned collection_index; /* index into collection array */
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/* hidinput data */
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__u16 code; /* input driver code */
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__u8 type; /* input driver type */
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__s8 hat_min; /* hat switch fun */
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__s8 hat_max; /* ditto */
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__s8 hat_dir; /* ditto */
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};
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struct hid_input;
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struct hid_field {
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unsigned physical; /* physical usage for this field */
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unsigned logical; /* logical usage for this field */
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unsigned application; /* application usage for this field */
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struct hid_usage *usage; /* usage table for this function */
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unsigned maxusage; /* maximum usage index */
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unsigned flags; /* main-item flags (i.e. volatile,array,constant) */
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unsigned report_offset; /* bit offset in the report */
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unsigned report_size; /* size of this field in the report */
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unsigned report_count; /* number of this field in the report */
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unsigned report_type; /* (input,output,feature) */
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__s32 *value; /* last known value(s) */
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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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__s32 unit_exponent;
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unsigned unit;
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struct hid_report *report; /* associated report */
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unsigned index; /* index into report->field[] */
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/* hidinput data */
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struct hid_input *hidinput; /* associated input structure */
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__u16 dpad; /* dpad input code */
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};
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#define HID_MAX_FIELDS 64
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struct hid_report {
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struct list_head list;
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unsigned id; /* id of this report */
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unsigned type; /* report type */
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struct hid_field *field[HID_MAX_FIELDS]; /* fields of the report */
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unsigned maxfield; /* maximum valid field index */
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unsigned size; /* size of the report (bits) */
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struct hid_device *device; /* associated device */
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};
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struct hid_report_enum {
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unsigned numbered;
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struct list_head report_list;
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struct hid_report *report_id_hash[256];
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};
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#define HID_REPORT_TYPES 3
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#define HID_MIN_BUFFER_SIZE 64 /* make sure there is at least a packet size of space */
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#define HID_MAX_BUFFER_SIZE 4096 /* 4kb */
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#define HID_CONTROL_FIFO_SIZE 256 /* to init devices with >100 reports */
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#define HID_OUTPUT_FIFO_SIZE 64
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struct hid_control_fifo {
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unsigned char dir;
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struct hid_report *report;
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char *raw_report;
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};
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struct hid_output_fifo {
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struct hid_report *report;
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char *raw_report;
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};
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#define HID_CLAIMED_INPUT 1
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#define HID_CLAIMED_HIDDEV 2
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#define HID_CLAIMED_HIDRAW 4
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#define HID_STAT_ADDED 1
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#define HID_STAT_PARSED 2
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struct hid_input {
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struct list_head list;
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struct hid_report *report;
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struct input_dev *input;
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};
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enum hid_type {
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HID_TYPE_OTHER = 0,
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HID_TYPE_USBMOUSE
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};
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struct hid_driver;
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struct hid_ll_driver;
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struct hid_device { /* device report descriptor */
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__u8 *rdesc;
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unsigned rsize;
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struct hid_collection *collection; /* List of HID collections */
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unsigned collection_size; /* Number of allocated hid_collections */
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unsigned maxcollection; /* Number of parsed collections */
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unsigned maxapplication; /* Number of applications */
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__u16 bus; /* BUS ID */
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__u32 vendor; /* Vendor ID */
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__u32 product; /* Product ID */
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__u32 version; /* HID version */
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enum hid_type type; /* device type (mouse, kbd, ...) */
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unsigned country; /* HID country */
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struct hid_report_enum report_enum[HID_REPORT_TYPES];
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struct device dev; /* device */
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struct hid_driver *driver;
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struct hid_ll_driver *ll_driver;
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unsigned int status; /* see STAT flags above */
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unsigned claimed; /* Claimed by hidinput, hiddev? */
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unsigned quirks; /* Various quirks the device can pull on us */
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struct list_head inputs; /* The list of inputs */
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void *hiddev; /* The hiddev structure */
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void *hidraw;
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int minor; /* Hiddev minor number */
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int open; /* is the device open by anyone? */
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char name[128]; /* Device name */
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char phys[64]; /* Device physical location */
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char uniq[64]; /* Device unique identifier (serial #) */
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void *driver_data;
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/* temporary hid_ff handling (until moved to the drivers) */
|
|
int (*ff_init)(struct hid_device *);
|
|
|
|
/* hiddev event handler */
|
|
int (*hiddev_connect)(struct hid_device *, unsigned int);
|
|
void (*hiddev_disconnect)(struct hid_device *);
|
|
void (*hiddev_hid_event) (struct hid_device *, struct hid_field *field,
|
|
struct hid_usage *, __s32);
|
|
void (*hiddev_report_event) (struct hid_device *, struct hid_report *);
|
|
|
|
/* handler for raw output data, used by hidraw */
|
|
int (*hid_output_raw_report) (struct hid_device *, __u8 *, size_t, unsigned char);
|
|
|
|
/* debugging support via debugfs */
|
|
unsigned short debug;
|
|
struct dentry *debug_dir;
|
|
struct dentry *debug_rdesc;
|
|
struct dentry *debug_events;
|
|
struct list_head debug_list;
|
|
wait_queue_head_t debug_wait;
|
|
};
|
|
|
|
static inline void *hid_get_drvdata(struct hid_device *hdev)
|
|
{
|
|
return dev_get_drvdata(&hdev->dev);
|
|
}
|
|
|
|
static inline void hid_set_drvdata(struct hid_device *hdev, void *data)
|
|
{
|
|
dev_set_drvdata(&hdev->dev, data);
|
|
}
|
|
|
|
#define HID_GLOBAL_STACK_SIZE 4
|
|
#define HID_COLLECTION_STACK_SIZE 4
|
|
|
|
struct hid_parser {
|
|
struct hid_global global;
|
|
struct hid_global global_stack[HID_GLOBAL_STACK_SIZE];
|
|
unsigned global_stack_ptr;
|
|
struct hid_local local;
|
|
unsigned collection_stack[HID_COLLECTION_STACK_SIZE];
|
|
unsigned collection_stack_ptr;
|
|
struct hid_device *device;
|
|
};
|
|
|
|
struct hid_class_descriptor {
|
|
__u8 bDescriptorType;
|
|
__le16 wDescriptorLength;
|
|
} __attribute__ ((packed));
|
|
|
|
struct hid_descriptor {
|
|
__u8 bLength;
|
|
__u8 bDescriptorType;
|
|
__le16 bcdHID;
|
|
__u8 bCountryCode;
|
|
__u8 bNumDescriptors;
|
|
|
|
struct hid_class_descriptor desc[1];
|
|
} __attribute__ ((packed));
|
|
|
|
#define HID_DEVICE(b, ven, prod) \
|
|
.bus = (b), \
|
|
.vendor = (ven), .product = (prod)
|
|
|
|
#define HID_USB_DEVICE(ven, prod) HID_DEVICE(BUS_USB, ven, prod)
|
|
#define HID_BLUETOOTH_DEVICE(ven, prod) HID_DEVICE(BUS_BLUETOOTH, ven, prod)
|
|
|
|
#define HID_REPORT_ID(rep) \
|
|
.report_type = (rep)
|
|
#define HID_USAGE_ID(uhid, utype, ucode) \
|
|
.usage_hid = (uhid), .usage_type = (utype), .usage_code = (ucode)
|
|
/* we don't want to catch types and codes equal to 0 */
|
|
#define HID_TERMINATOR (HID_ANY_ID - 1)
|
|
|
|
struct hid_report_id {
|
|
__u32 report_type;
|
|
};
|
|
struct hid_usage_id {
|
|
__u32 usage_hid;
|
|
__u32 usage_type;
|
|
__u32 usage_code;
|
|
};
|
|
|
|
/**
|
|
* struct hid_driver
|
|
* @name: driver name (e.g. "Footech_bar-wheel")
|
|
* @id_table: which devices is this driver for (must be non-NULL for probe
|
|
* to be called)
|
|
* @dyn_list: list of dynamically added device ids
|
|
* @dyn_lock: lock protecting @dyn_list
|
|
* @probe: new device inserted
|
|
* @remove: device removed (NULL if not a hot-plug capable driver)
|
|
* @report_table: on which reports to call raw_event (NULL means all)
|
|
* @raw_event: if report in report_table, this hook is called (NULL means nop)
|
|
* @usage_table: on which events to call event (NULL means all)
|
|
* @event: if usage in usage_table, this hook is called (NULL means nop)
|
|
* @report_fixup: called before report descriptor parsing (NULL means nop)
|
|
* @input_mapping: invoked on input registering before mapping an usage
|
|
* @input_mapped: invoked on input registering after mapping an usage
|
|
*
|
|
* raw_event and event should return 0 on no action performed, 1 when no
|
|
* further processing should be done and negative on error
|
|
*
|
|
* input_mapping shall return a negative value to completely ignore this usage
|
|
* (e.g. doubled or invalid usage), zero to continue with parsing of this
|
|
* usage by generic code (no special handling needed) or positive to skip
|
|
* generic parsing (needed special handling which was done in the hook already)
|
|
* input_mapped shall return negative to inform the layer that this usage
|
|
* should not be considered for further processing or zero to notify that
|
|
* no processing was performed and should be done in a generic manner
|
|
* Both these functions may be NULL which means the same behavior as returning
|
|
* zero from them.
|
|
*/
|
|
struct hid_driver {
|
|
char *name;
|
|
const struct hid_device_id *id_table;
|
|
|
|
struct list_head dyn_list;
|
|
spinlock_t dyn_lock;
|
|
|
|
int (*probe)(struct hid_device *dev, const struct hid_device_id *id);
|
|
void (*remove)(struct hid_device *dev);
|
|
|
|
const struct hid_report_id *report_table;
|
|
int (*raw_event)(struct hid_device *hdev, struct hid_report *report,
|
|
u8 *data, int size);
|
|
const struct hid_usage_id *usage_table;
|
|
int (*event)(struct hid_device *hdev, struct hid_field *field,
|
|
struct hid_usage *usage, __s32 value);
|
|
|
|
void (*report_fixup)(struct hid_device *hdev, __u8 *buf,
|
|
unsigned int size);
|
|
|
|
int (*input_mapping)(struct hid_device *hdev,
|
|
struct hid_input *hidinput, struct hid_field *field,
|
|
struct hid_usage *usage, unsigned long **bit, int *max);
|
|
int (*input_mapped)(struct hid_device *hdev,
|
|
struct hid_input *hidinput, struct hid_field *field,
|
|
struct hid_usage *usage, unsigned long **bit, int *max);
|
|
/* private: */
|
|
struct device_driver driver;
|
|
};
|
|
|
|
/**
|
|
* hid_ll_driver - low level driver callbacks
|
|
* @start: called on probe to start the device
|
|
* @stop: called on remove
|
|
* @open: called by input layer on open
|
|
* @close: called by input layer on close
|
|
* @hidinput_input_event: event input event (e.g. ff or leds)
|
|
* @parse: this method is called only once to parse the device data,
|
|
* shouldn't allocate anything to not leak memory
|
|
*/
|
|
struct hid_ll_driver {
|
|
int (*start)(struct hid_device *hdev);
|
|
void (*stop)(struct hid_device *hdev);
|
|
|
|
int (*open)(struct hid_device *hdev);
|
|
void (*close)(struct hid_device *hdev);
|
|
|
|
int (*power)(struct hid_device *hdev, int level);
|
|
|
|
int (*hidinput_input_event) (struct input_dev *idev, unsigned int type,
|
|
unsigned int code, int value);
|
|
|
|
int (*parse)(struct hid_device *hdev);
|
|
};
|
|
|
|
#define PM_HINT_FULLON 1<<5
|
|
#define PM_HINT_NORMAL 1<<1
|
|
|
|
/* Applications from HID Usage Tables 4/8/99 Version 1.1 */
|
|
/* We ignore a few input applications that are not widely used */
|
|
#define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001) || ((a >= 0x000d0002) && (a <= 0x000d0006)))
|
|
|
|
/* HID core API */
|
|
|
|
extern int hid_debug;
|
|
|
|
extern int hid_add_device(struct hid_device *);
|
|
extern void hid_destroy_device(struct hid_device *);
|
|
|
|
extern int __must_check __hid_register_driver(struct hid_driver *,
|
|
struct module *, const char *mod_name);
|
|
static inline int __must_check hid_register_driver(struct hid_driver *driver)
|
|
{
|
|
return __hid_register_driver(driver, THIS_MODULE, KBUILD_MODNAME);
|
|
}
|
|
extern void hid_unregister_driver(struct hid_driver *);
|
|
|
|
extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct hid_usage *, __s32);
|
|
extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report);
|
|
extern int hidinput_connect(struct hid_device *hid, unsigned int force);
|
|
extern void hidinput_disconnect(struct hid_device *);
|
|
|
|
int hid_set_field(struct hid_field *, unsigned, __s32);
|
|
int hid_input_report(struct hid_device *, int type, u8 *, int, int);
|
|
int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
|
|
void hid_output_report(struct hid_report *report, __u8 *data);
|
|
struct hid_device *hid_allocate_device(void);
|
|
struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id);
|
|
int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
|
|
int hid_check_keys_pressed(struct hid_device *hid);
|
|
int hid_connect(struct hid_device *hid, unsigned int connect_mask);
|
|
void hid_disconnect(struct hid_device *hid);
|
|
|
|
/**
|
|
* hid_map_usage - map usage input bits
|
|
*
|
|
* @hidinput: hidinput which we are interested in
|
|
* @usage: usage to fill in
|
|
* @bit: pointer to input->{}bit (out parameter)
|
|
* @max: maximal valid usage->code to consider later (out parameter)
|
|
* @type: input event type (EV_KEY, EV_REL, ...)
|
|
* @c: code which corresponds to this usage and type
|
|
*/
|
|
static inline void hid_map_usage(struct hid_input *hidinput,
|
|
struct hid_usage *usage, unsigned long **bit, int *max,
|
|
__u8 type, __u16 c)
|
|
{
|
|
struct input_dev *input = hidinput->input;
|
|
|
|
usage->type = type;
|
|
usage->code = c;
|
|
|
|
switch (type) {
|
|
case EV_ABS:
|
|
*bit = input->absbit;
|
|
*max = ABS_MAX;
|
|
break;
|
|
case EV_REL:
|
|
*bit = input->relbit;
|
|
*max = REL_MAX;
|
|
break;
|
|
case EV_KEY:
|
|
*bit = input->keybit;
|
|
*max = KEY_MAX;
|
|
break;
|
|
case EV_LED:
|
|
*bit = input->ledbit;
|
|
*max = LED_MAX;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* hid_map_usage_clear - map usage input bits and clear the input bit
|
|
*
|
|
* The same as hid_map_usage, except the @c bit is also cleared in supported
|
|
* bits (@bit).
|
|
*/
|
|
static inline void hid_map_usage_clear(struct hid_input *hidinput,
|
|
struct hid_usage *usage, unsigned long **bit, int *max,
|
|
__u8 type, __u16 c)
|
|
{
|
|
hid_map_usage(hidinput, usage, bit, max, type, c);
|
|
clear_bit(c, *bit);
|
|
}
|
|
|
|
/**
|
|
* hid_parse - parse HW reports
|
|
*
|
|
* @hdev: hid device
|
|
*
|
|
* Call this from probe after you set up the device (if needed). Your
|
|
* report_fixup will be called (if non-NULL) after reading raw report from
|
|
* device before passing it to hid layer for real parsing.
|
|
*/
|
|
static inline int __must_check hid_parse(struct hid_device *hdev)
|
|
{
|
|
int ret;
|
|
|
|
if (hdev->status & HID_STAT_PARSED)
|
|
return 0;
|
|
|
|
ret = hdev->ll_driver->parse(hdev);
|
|
if (!ret)
|
|
hdev->status |= HID_STAT_PARSED;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* hid_hw_start - start underlaying HW
|
|
*
|
|
* @hdev: hid device
|
|
* @connect_mask: which outputs to connect, see HID_CONNECT_*
|
|
*
|
|
* Call this in probe function *after* hid_parse. This will setup HW buffers
|
|
* and start the device (if not deffered to device open). hid_hw_stop must be
|
|
* called if this was successfull.
|
|
*/
|
|
static inline int __must_check hid_hw_start(struct hid_device *hdev,
|
|
unsigned int connect_mask)
|
|
{
|
|
int ret = hdev->ll_driver->start(hdev);
|
|
if (ret || !connect_mask)
|
|
return ret;
|
|
ret = hid_connect(hdev, connect_mask);
|
|
if (ret)
|
|
hdev->ll_driver->stop(hdev);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* hid_hw_stop - stop underlaying HW
|
|
*
|
|
* @hdev: hid device
|
|
*
|
|
* This is usually called from remove function or from probe when something
|
|
* failed and hid_hw_start was called already.
|
|
*/
|
|
static inline void hid_hw_stop(struct hid_device *hdev)
|
|
{
|
|
hid_disconnect(hdev);
|
|
hdev->ll_driver->stop(hdev);
|
|
}
|
|
|
|
void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
|
|
int interrupt);
|
|
|
|
extern int hid_generic_init(void);
|
|
extern void hid_generic_exit(void);
|
|
|
|
/* HID quirks API */
|
|
u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct);
|
|
int usbhid_quirks_init(char **quirks_param);
|
|
void usbhid_quirks_exit(void);
|
|
void usbhid_set_leds(struct hid_device *hid);
|
|
|
|
#ifdef CONFIG_HID_PID
|
|
int hid_pidff_init(struct hid_device *hid);
|
|
#else
|
|
#define hid_pidff_init NULL
|
|
#endif
|
|
|
|
#define dbg_hid(format, arg...) if (hid_debug) \
|
|
printk(KERN_DEBUG "%s: " format ,\
|
|
__FILE__ , ## arg)
|
|
#define err_hid(format, arg...) printk(KERN_ERR "%s: " format "\n" , \
|
|
__FILE__ , ## arg)
|
|
#endif /* HID_FF */
|
|
|
|
#endif
|
|
|