diff options
Diffstat (limited to 'usr/src/uts/common/sys/audio/audio_trace.h')
| -rw-r--r-- | usr/src/uts/common/sys/audio/audio_trace.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/usr/src/uts/common/sys/audio/audio_trace.h b/usr/src/uts/common/sys/audio/audio_trace.h new file mode 100644 index 0000000000..61eeb45ed0 --- /dev/null +++ b/usr/src/uts/common/sys/audio/audio_trace.h @@ -0,0 +1,140 @@ +/* + * 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 */ |