| /************************************************************************** |
| * |
| * Copyright © 2000-2008 Alacritech, Inc. All rights reserved. |
| * |
| * $Id: sxgdbg.h,v 1.1 2008/06/27 12:49:28 mook Exp $ |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY ALACRITECH, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ALACRITECH, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * The views and conclusions contained in the software and documentation |
| * are those of the authors and should not be interpreted as representing |
| * official policies, either expressed or implied, of Alacritech, Inc. |
| * |
| **************************************************************************/ |
| |
| /* |
| * FILENAME: sxgdbg.h |
| * |
| * All debug and assertion-based definitions and macros are included |
| * in this file for the SXGOSS driver. |
| */ |
| #ifndef _SXG_DEBUG_H_ |
| #define _SXG_DEBUG_H_ |
| |
| #define ATKDBG 1 |
| #define ATK_TRACE_ENABLED 0 |
| |
| #define DBG_ERROR(n, args...) printk(KERN_WARNING n, ##args) |
| |
| #ifdef ASSERT |
| #undef ASSERT |
| #endif |
| |
| #define SXG_ASSERT_ENABLED |
| #ifdef SXG_ASSERT_ENABLED |
| #ifndef ASSERT |
| #define ASSERT(a) \ |
| { \ |
| if (!(a)) { \ |
| DBG_ERROR("ASSERT() Failure: file %s, function %s line %d\n", \ |
| __FILE__, __func__, __LINE__); \ |
| } \ |
| } |
| #endif |
| #else |
| #ifndef ASSERT |
| #define ASSERT(a) |
| #endif |
| #endif /* SXG_ASSERT_ENABLED */ |
| |
| |
| #ifdef ATKDBG |
| /* |
| * Global for timer granularity; every driver must have an instance |
| * of this initialized to 0 |
| */ |
| |
| extern ulong ATKTimerDiv; |
| |
| /* |
| * trace_entry - |
| * |
| * This structure defines an entry in the trace buffer. The |
| * first few fields mean the same from entry to entry, while |
| * the meaning of last several fields change to suit the |
| * needs of the trace entry. Typically they are function call |
| * parameters. |
| */ |
| struct trace_entry { |
| char name[8];/* 8 character name - like 's'i'm'b'a'r'c'v' */ |
| u32 time; /* Current clock tic */ |
| unsigned char cpu; /* Current CPU */ |
| unsigned char irql; /* Current IRQL */ |
| unsigned char driver;/* The driver which added the trace call */ |
| /* pad to 4 byte boundary - will probably get used */ |
| unsigned char pad2; |
| u32 arg1; /* Caller arg1 */ |
| u32 arg2; /* Caller arg2 */ |
| u32 arg3; /* Caller arg3 */ |
| u32 arg4; /* Caller arg4 */ |
| }; |
| |
| /* Driver types for driver field in struct trace_entry */ |
| #define TRACE_SXG 1 |
| #define TRACE_VPCI 2 |
| #define TRACE_SLIC 3 |
| |
| #define TRACE_ENTRIES 1024 |
| |
| struct sxg_trace_buffer { |
| /* aid for windbg extension */ |
| unsigned int size; |
| unsigned int in; /* Where to add */ |
| unsigned int level; /* Current Trace level */ |
| spinlock_t lock; /* For MP tracing */ |
| struct trace_entry entries[TRACE_ENTRIES];/* The circular buffer */ |
| }; |
| |
| /* |
| * The trace levels |
| * |
| * XXX At the moment I am only defining critical, important, and noisy. |
| * I am leaving room for more if anyone wants them. |
| */ |
| #define TRACE_NONE 0 /* For trace level - if no tracing wanted */ |
| #define TRACE_CRITICAL 1 /* minimal tracing - only critical stuff */ |
| #define TRACE_IMPORTANT 5 /* more tracing - anything important */ |
| #define TRACE_NOISY 10 /* Everything in the world */ |
| |
| |
| /* The macros themselves */ |
| #if ATK_TRACE_ENABLED |
| #define SXG_TRACE_INIT(buffer, tlevel) \ |
| { \ |
| memset((buffer), 0, sizeof(struct sxg_trace_buffer)); \ |
| (buffer)->level = (tlevel); \ |
| (buffer)->size = TRACE_ENTRIES; \ |
| spin_lock_init(&(buffer)->lock); \ |
| } |
| #else |
| #define SXG_TRACE_INIT(buffer, tlevel) |
| #endif |
| |
| /*The trace macro. This is active only if ATK_TRACE_ENABLED is set. */ |
| #if ATK_TRACE_ENABLED |
| #define SXG_TRACE(tdriver, buffer, tlevel, tname, a1, a2, a3, a4) { \ |
| if ((buffer) && ((buffer)->level >= (tlevel))) { \ |
| unsigned int trace_irql = 0;/* ?????? FIX THIS */\ |
| unsigned int trace_len; \ |
| struct trace_entry *trace_entry; \ |
| struct timeval timev; \ |
| if(spin_trylock(&(buffer)->lock)) { \ |
| trace_entry = &(buffer)->entries[(buffer)->in]; \ |
| do_gettimeofday(&timev); \ |
| \ |
| memset(trace_entry->name, 0, 8); \ |
| trace_len = strlen(tname); \ |
| trace_len = trace_len > 8 ? 8 : trace_len; \ |
| memcpy(trace_entry->name, (tname), trace_len); \ |
| trace_entry->time = timev.tv_usec; \ |
| trace_entry->cpu = (unsigned char)(smp_processor_id() & 0xFF);\ |
| trace_entry->driver = (tdriver); \ |
| trace_entry->irql = trace_irql; \ |
| trace_entry->arg1 = (ulong)(a1); \ |
| trace_entry->arg2 = (ulong)(a2); \ |
| trace_entry->arg3 = (ulong)(a3); \ |
| trace_entry->arg4 = (ulong)(a4); \ |
| \ |
| (buffer)->in++; \ |
| if ((buffer)->in == TRACE_ENTRIES) \ |
| (buffer)->in = 0; \ |
| \ |
| spin_unlock(&(buffer)->lock); \ |
| } \ |
| } \ |
| } |
| #else |
| #define SXG_TRACE(tdriver, buffer, tlevel, tname, a1, a2, a3, a4) |
| #endif |
| |
| #endif |
| |
| #endif /* _SXG_DEBUG_H_ */ |
