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/*
* 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
* 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 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"
#include <sys/mutex.h>
/*
* 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);
typedef void (*beep_freq_func_t)(void *arg, int freq);
/* 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 */
enum {BEEP_UNINIT = 0, BEEP_OFF = 1,
BEEP_TIMED = 2, BEEP_ON = 3} mode;
/* Address of the hw-dependent beep_freq function */
beep_freq_func_t beep_freq;
/* Address of the hw-dependent beep_on function */
beep_on_func_t beep_on;
/* Address of the hw-dependent beep_off function */
beep_off_func_t beep_off;
/* Timeout id for the beep_timeout() function */
timeout_id_t timeout_id;
/* Mutex protecting mode, timeout_id, queue_head, queue_tail, */
/* and queue */
kmutex_t mutex;
/* 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_entry_t *queue;
} beep_state_t;
#define BEEP_QUEUE_SIZE 1000
/* BEEP_DEFAULT is a sentinel for the beep_param table. */
enum beep_type { BEEP_DEFAULT = 0, BEEP_CONSOLE = 1, BEEP_TYPE4 = 2 };
typedef struct beep_params {
enum beep_type type;
int frequency; /* Hz */
int duration; /* milliseconds */
} beep_params_t;
extern int beep_init(void *arg,
beep_on_func_t beep_on_func,
beep_off_func_t beep_off_func,
beep_freq_func_t beep_freq_func);
extern int beep_fini(void);
extern int beeper_off(void);
extern int beeper_freq(enum beep_type type, int freq);
extern int beep(enum beep_type type);
extern int beep_polled(enum beep_type type);
extern int beeper_on(enum beep_type type);
extern int beep_mktone(int frequency, int duration);
extern void beep_timeout(void *arg);
extern int beep_busy(void);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_BEEP_H */
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