common/sys/vuid_wheel.h

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _SYS_VUID_WHEEL_H
#define _SYS_VUID_WHEEL_H

#pragma ident   "%Z%%M% %I% %E% SMI"

#include <sys/vuid_event.h> /* for VUIOC definition */

#ifdef  __cplusplus
extern "C" {
#endif

#define VUID_WHEEL_MAX_COUNT    256
#define VUIDGWHEELCOUNT     (VUIOC|15)
#define VUIDGWHEELINFO      (VUIOC|16)
#define VUIDGWHEELSTATE     (VUIOC|17)
#define VUIDSWHEELSTATE     (VUIOC|18)

typedef struct {
    int vers;       /* set to VUID_WHEEL_INFO_VERS */
    int id;
    int format;
} wheel_info;

#define VUID_WHEEL_INFO_VERS        1

#define VUID_WHEEL_FORMAT_UNKNOWN   0
#define VUID_WHEEL_FORMAT_HORIZONTAL    1
#define VUID_WHEEL_FORMAT_VERTICAL  2

typedef struct {
    int     vers;       /* set to VUID_WHEEL_STATE_VERS */
    int     id;
    uint32_t    stateflags;
} wheel_state;

#define VUID_WHEEL_STATE_VERS       1
#define VUID_WHEEL_STATE_ENABLED    (1 << 0) /* Can get & set */
#define VUID_WHEEL_DELTAMASK        0x000000FF

#define VUID_WHEEL_GETDELTA(event_value)    \
        ((signed char) ((event_value) & VUID_WHEEL_DELTAMASK))

#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_VUID_WHEEL_H */