beep.h revision c35aa225b9ae500f1d14f0d39a94f1eb6cda333d
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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
* 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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_BEEP_H
#define _SYS_BEEP_H
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Interface to the system beeper.
*
* (This is the API, not the hardware interface.)
*/
#ifdef __cplusplus
extern "C" {
#endif
#if defined(_KERNEL)
/* beep_entry structure */
typedef struct beep_entry {
unsigned short frequency;
unsigned short duration;
} beep_entry_t;
typedef void (*beep_on_func_t)(void *arg);
typedef void (*beep_off_func_t)(void *arg);
/* beep_state structure */
typedef struct beep_state {
/* Private data for beep_freq, beep_on, and beep_off functions */
void *arg;
/* Indicates if a beep command is already in progress */
/* Address of the hw-dependent beep_freq function */
/* Address of the hw-dependent beep_on function */
/* Address of the hw-dependent beep_off function */
/* Timeout id for the beep_timeout() function */
/* Mutex protecting mode, timeout_id, queue_head, queue_tail, */
/* and queue */
/* Index of head of queue */
int queue_head;
/* Index of tail of queue */
int queue_tail;
/* Max queue size */
int queue_size;
/* Circular ring buffer */
} beep_state_t;
#define BEEP_QUEUE_SIZE 1000
/* BEEP_DEFAULT is a sentinel for the beep_param table. */
typedef struct beep_params {
int frequency; /* Hz */
int duration; /* milliseconds */
extern int beep_fini(void);
extern int beeper_off(void);
extern void beep_timeout(void *arg);
extern int beep_busy(void);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_BEEP_H */