hid.h

linux-2.6.15.6

#ifndef __HID_H
#define __HID_H

/*
 * $Id: hid.h,v 1.24 2001/12/27 10:37:41 vojtech Exp $
 *
 *  Copyright (c) 1999 Andreas Gal
 *  Copyright (c) 2000-2001 Vojtech Pavlik
 */

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Should you need to contact me, the author, you can do so either by
 * e-mail - mail your message to <[e-mail]>, or by paper mail:
 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
 */

#include <linux/types.h>
#include <linux/slab.h>
#include <linux/list.h>

/*
 * USB HID (Human Interface Device) interface class code
 */

#define USB_INTERFACE_CLASS_HID		3

/*
 * HID class requests
 */

#define HID_REQ_GET_REPORT		0x01
#define HID_REQ_GET_IDLE		0x02
#define HID_REQ_GET_PROTOCOL		0x03
#define HID_REQ_SET_REPORT		0x09
#define HID_REQ_SET_IDLE		0x0A
#define HID_REQ_SET_PROTOCOL		0x0B

/*
 * HID class descriptor types
 */

#define HID_DT_HID			(USB_TYPE_CLASS | 0x01)
#define HID_DT_REPORT			(USB_TYPE_CLASS | 0x02)
#define HID_DT_PHYSICAL			(USB_TYPE_CLASS | 0x03)

/*
 * We parse each description item into this structure. Short items data
 * values are expanded to 32-bit signed int, long items contain a pointer
 * into the data area.
 */

struct hid_item {
	unsigned  format;
	__u8      size;
	__u8      type;
	__u8      tag;
	union {
	    __u8   u8;
	    __s8   s8;
	    __u16  u16;
	    __s16  s16;
	    __u32  u32;
	    __s32  s32;
	    __u8  *longdata;
	} data;
};

/*
 * HID report item format
 */

#define HID_ITEM_FORMAT_SHORT	0
#define HID_ITEM_FORMAT_LONG	1

/*
 * Special tag indicating long items
 */

#define HID_ITEM_TAG_LONG	15

/*
 * HID report descriptor item type (prefix bit 2,3)
 */

#define HID_ITEM_TYPE_MAIN		0
#define HID_ITEM_TYPE_GLOBAL		1
#define HID_ITEM_TYPE_LOCAL		2
#define HID_ITEM_TYPE_RESERVED		3

/*
 * HID report descriptor main item tags
 */

#define HID_MAIN_ITEM_TAG_INPUT			8
#define HID_MAIN_ITEM_TAG_OUTPUT		9
#define HID_MAIN_ITEM_TAG_FEATURE		11
#define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION	10
#define HID_MAIN_ITEM_TAG_END_COLLECTION	12

/*
 * HID report descriptor main item contents
 */

#define HID_MAIN_ITEM_CONSTANT		0x001
#define HID_MAIN_ITEM_VARIABLE		0x002
#define HID_MAIN_ITEM_RELATIVE		0x004
#define HID_MAIN_ITEM_WRAP		0x008
#define HID_MAIN_ITEM_NONLINEAR		0x010
#define HID_MAIN_ITEM_NO_PREFERRED	0x020
#define HID_MAIN_ITEM_NULL_STATE	0x040
#define HID_MAIN_ITEM_VOLATILE		0x080
#define HID_MAIN_ITEM_BUFFERED_BYTE	0x100

/*
 * HID report descriptor collection item types
 */

#define HID_COLLECTION_PHYSICAL		0
#define HID_COLLECTION_APPLICATION	1
#define HID_COLLECTION_LOGICAL		2

/*
 * HID report descriptor global item tags
 */

#define HID_GLOBAL_ITEM_TAG_USAGE_PAGE		0
#define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM	1
#define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM	2
#define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM	3
#define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM	4
#define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT	5
#define HID_GLOBAL_ITEM_TAG_UNIT		6
#define HID_GLOBAL_ITEM_TAG_REPORT_SIZE		7
#define HID_GLOBAL_ITEM_TAG_REPORT_ID		8
#define HID_GLOBAL_ITEM_TAG_REPORT_COUNT	9
#define HID_GLOBAL_ITEM_TAG_PUSH		10
#define HID_GLOBAL_ITEM_TAG_POP			11

/*
 * HID report descriptor local item tags
 */

#define HID_LOCAL_ITEM_TAG_USAGE		0
#define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM	1
#define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM	2
#define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX	3
#define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM	4
#define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM	5
#define HID_LOCAL_ITEM_TAG_STRING_INDEX		7
#define HID_LOCAL_ITEM_TAG_STRING_MINIMUM	8
#define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM	9
#define HID_LOCAL_ITEM_TAG_DELIMITER		10

/*
 * HID usage tables
 */

#define HID_USAGE_PAGE		0xffff0000

#define HID_UP_UNDEFINED	0x00000000
#define HID_UP_GENDESK		0x00010000
#define HID_UP_SIMULATION	0x00020000
#define HID_UP_KEYBOARD		0x00070000
#define HID_UP_LED		0x00080000
#define HID_UP_BUTTON		0x00090000
#define HID_UP_ORDINAL		0x000a0000
#define HID_UP_CONSUMER		0x000c0000
#define HID_UP_DIGITIZER	0x000d0000
#define HID_UP_PID		0x000f0000
#define HID_UP_HPVENDOR         0xff7f0000
#define HID_UP_MSVENDOR		0xff000000
#define HID_UP_CUSTOM		0x00ff0000
#define HID_UP_LOGIVENDOR	0xffbc0000

#define HID_USAGE		0x0000ffff

#define HID_GD_POINTER		0x00010001
#define HID_GD_MOUSE		0x00010002
#define HID_GD_JOYSTICK		0x00010004
#define HID_GD_GAMEPAD		0x00010005
#define HID_GD_KEYBOARD		0x00010006
#define HID_GD_KEYPAD		0x00010007
#define HID_GD_MULTIAXIS	0x00010008
#define HID_GD_X		0x00010030
#define HID_GD_Y		0x00010031
#define HID_GD_Z		0x00010032
#define HID_GD_RX		0x00010033
#define HID_GD_RY		0x00010034
#define HID_GD_RZ		0x00010035
#define HID_GD_SLIDER		0x00010036
#define HID_GD_DIAL		0x00010037
#define HID_GD_WHEEL		0x00010038
#define HID_GD_HATSWITCH	0x00010039
#define HID_GD_BUFFER		0x0001003a
#define HID_GD_BYTECOUNT	0x0001003b
#define HID_GD_MOTION		0x0001003c
#define HID_GD_START		0x0001003d
#define HID_GD_SELECT		0x0001003e
#define HID_GD_VX		0x00010040
#define HID_GD_VY		0x00010041
#define HID_GD_VZ		0x00010042
#define HID_GD_VBRX		0x00010043
#define HID_GD_VBRY		0x00010044
#define HID_GD_VBRZ		0x00010045
#define HID_GD_VNO		0x00010046
#define HID_GD_FEATURE		0x00010047
#define HID_GD_UP		0x00010090
#define HID_GD_DOWN		0x00010091
#define HID_GD_RIGHT		0x00010092
#define HID_GD_LEFT		0x00010093

/*
 * HID report types --- Ouch! HID spec says 1 2 3!
 */

#define HID_INPUT_REPORT	0
#define HID_OUTPUT_REPORT	1
#define HID_FEATURE_REPORT	2

/*
 * HID device quirks.
 */

#define HID_QUIRK_INVERT			0x001
#define HID_QUIRK_NOTOUCH			0x002
#define HID_QUIRK_IGNORE			0x004
#define HID_QUIRK_NOGET				0x008
#define HID_QUIRK_HIDDEV			0x010
#define HID_QUIRK_BADPAD			0x020
#define HID_QUIRK_MULTI_INPUT			0x040
#define HID_QUIRK_2WHEEL_MOUSE_HACK_7		0x080
#define HID_QUIRK_2WHEEL_MOUSE_HACK_5		0x100
#define HID_QUIRK_2WHEEL_MOUSE_HACK_ON		0x200
#define HID_QUIRK_2WHEEL_POWERMOUSE		0x400

/*
 * This is the global environment of the parser. This information is
 * persistent for main-items. The global environment can be saved and
 * restored with PUSH/POP statements.
 */

struct hid_global {
	unsigned usage_page;
	__s32    logical_minimum;
	__s32    logical_maximum;