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/*
* 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.
*/
/*
* This header file defines the public interfaces for audio tracing.
*
* CAUTION: This header file has not gone through a formal review process.
* Thus its commitment level is very low and may change or be removed
* at any time.
*/
#ifndef _SYS_AUDIO_TRACE_H
#define _SYS_AUDIO_TRACE_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _KERNEL
/*
* Trace declarations and defines.
*/
struct audio_trace_buf {
uint_t atb_seq; /* trace sequence number */
char *atb_comment; /* trace comment string */
uintptr_t atb_data; /* data to go with string */
};
typedef struct audio_trace_buf audio_trace_buf_t;
#define AUDIO_TRACE_BUFFER_SIZE 1024
#ifdef DEBUG
#ifndef __lock_lint
extern audio_trace_buf_t audio_trace_buffer[AUDIO_TRACE_BUFFER_SIZE];
extern kmutex_t audio_tb_lock; /* global trace buffer lock */
extern size_t audio_tb_siz;
extern int audio_tb_pos;
extern uint_t audio_tb_seq;
_NOTE(MUTEX_PROTECTS_DATA(audio_tb_lock, audio_tb_pos))
_NOTE(MUTEX_PROTECTS_DATA(audio_tb_lock, audio_tb_seq))
_NOTE(MUTEX_PROTECTS_DATA(audio_tb_lock, audio_trace_buffer))
#define ATRACE(M, D) { \
mutex_enter(&audio_tb_lock); \
audio_trace_buffer[audio_tb_pos].atb_seq = audio_tb_seq++; \
audio_trace_buffer[audio_tb_pos].atb_comment = (M); \
audio_trace_buffer[audio_tb_pos++].atb_data = (uintptr_t)(D); \
if (audio_tb_pos >= audio_tb_siz) \
audio_tb_pos = 0; \
mutex_exit(&audio_tb_lock); \
}
#define ATRACE_64(M, D) ATRACE(M, D)
#define ATRACE_32(M, D) { \
mutex_enter(&audio_tb_lock); \
audio_trace_buffer[audio_tb_pos].atb_seq = audio_tb_seq++; \
audio_trace_buffer[audio_tb_pos].atb_comment = (M); \
audio_trace_buffer[audio_tb_pos++].atb_data = \
(uintptr_t)(uint32_t)(D); \
if (audio_tb_pos >= audio_tb_siz) \
audio_tb_pos = 0; \
mutex_exit(&audio_tb_lock); \
}
#define ATRACE_16(M, D) { \
mutex_enter(&audio_tb_lock); \
audio_trace_buffer[audio_tb_pos].atb_seq = audio_tb_seq++; \
audio_trace_buffer[audio_tb_pos].atb_comment = (M); \
audio_trace_buffer[audio_tb_pos++].atb_data = \
(uintptr_t)(uint16_t)(D); \
if (audio_tb_pos >= audio_tb_siz) \
audio_tb_pos = 0; \
mutex_exit(&audio_tb_lock); \
}
#define ATRACE_8(M, D) { \
mutex_enter(&audio_tb_lock); \
audio_trace_buffer[audio_tb_pos].atb_seq = audio_tb_seq++; \
audio_trace_buffer[audio_tb_pos].atb_comment = (M); \
audio_trace_buffer[audio_tb_pos++].atb_data = \
(uintptr_t)(uint8_t)(D); \
if (audio_tb_pos >= audio_tb_siz) \
audio_tb_pos = 0; \
mutex_exit(&audio_tb_lock); \
}
#else
#define ATRACE(M, D)
#define ATRACE_32(M, D)
#define ATRACE_16(M, D)
#define ATRACE_8(M, D)
#endif
#else /* DEBUG */
#define ATRACE(M, D)
#define ATRACE_32(M, D)
#define ATRACE_16(M, D)
#define ATRACE_8(M, D)
#endif /* DEBUG */
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_AUDIO_TRACE_H */
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