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minix/drivers/acpi/utilities/utdebug.c
Tomas Hruby 9560b6dea8 ACPI driver 
- 99% of the code is Intel's ACPICA. The license is compliant with BSD
  and GNU and virtually all systems that use ACPI use this code, For
  instance it is part of the Linux kernel.

- The only minix specific files are

  acpi.c
  osminixxf.c
  platform/acminix.h

  and

  include/minix/acpi.h

- At the moment the driver does not register interrupt hooks which I
  believe is mainly for handling PnP, events like "battery level is
  low" and power management. Should not be difficult to add it if need
  be.

- The interface to the outside world is virtually non-existent except
  a trivial message based service for PCI driver to query which device
  is connected to what IRQ line. This will evolve as more components
  start using this driver. VM, Scheduler and IOMMU are the possible
  users right now.

- because of dependency on a native 64bit (long long, part of c99) it
  is compiled only with a gnu-like compilers which in case of Minix
  includes gcc llvm-gcc and clang
2010-09-02 15:44:04 +00:00

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/******************************************************************************
*
* Module Name: utdebug - Debug print routines
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
* All rights reserved.
*
* 2. License
*
* 2.1. This is your license from Intel Corp. under its intellectual property
* rights. You may have additional license terms from the party that provided
* you this software, covering your right to use that party's intellectual
* property rights.
*
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
* copy of the source code appearing in this file ("Covered Code") an
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
* base code distributed originally by Intel ("Original Intel Code") to copy,
* make derivatives, distribute, use and display any portion of the Covered
* Code in any form, with the right to sublicense such rights; and
*
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
* license (with the right to sublicense), under only those claims of Intel
* patents that are infringed by the Original Intel Code, to make, use, sell,
* offer to sell, and import the Covered Code and derivative works thereof
* solely to the minimum extent necessary to exercise the above copyright
* license, and in no event shall the patent license extend to any additions
* to or modifications of the Original Intel Code. No other license or right
* is granted directly or by implication, estoppel or otherwise;
*
* The above copyright and patent license is granted only if the following
* conditions are met:
*
* 3. Conditions
*
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification with rights to further distribute source must include
* the above Copyright Notice, the above License, this list of Conditions,
* and the following Disclaimer and Export Compliance provision. In addition,
* Licensee must cause all Covered Code to which Licensee contributes to
* contain a file documenting the changes Licensee made to create that Covered
* Code and the date of any change. Licensee must include in that file the
* documentation of any changes made by any predecessor Licensee. Licensee
* must include a prominent statement that the modification is derived,
* directly or indirectly, from Original Intel Code.
*
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification without rights to further distribute source must
* include the following Disclaimer and Export Compliance provision in the
* documentation and/or other materials provided with distribution. In
* addition, Licensee may not authorize further sublicense of source of any
* portion of the Covered Code, and must include terms to the effect that the
* license from Licensee to its licensee is limited to the intellectual
* property embodied in the software Licensee provides to its licensee, and
* not to intellectual property embodied in modifications its licensee may
* make.
*
* 3.3. Redistribution of Executable. Redistribution in executable form of any
* substantial portion of the Covered Code or modification must reproduce the
* above Copyright Notice, and the following Disclaimer and Export Compliance
* provision in the documentation and/or other materials provided with the
* distribution.
*
* 3.4. Intel retains all right, title, and interest in and to the Original
* Intel Code.
*
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
* Intel shall be used in advertising or otherwise to promote the sale, use or
* other dealings in products derived from or relating to the Covered Code
* without prior written authorization from Intel.
*
* 4. Disclaimer and Export Compliance
*
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
* PARTICULAR PURPOSE.
*
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
* LIMITED REMEDY.
*
* 4.3. Licensee shall not export, either directly or indirectly, any of this
* software or system incorporating such software without first obtaining any
* required license or other approval from the U. S. Department of Commerce or
* any other agency or department of the United States Government. In the
* event Licensee exports any such software from the United States or
* re-exports any such software from a foreign destination, Licensee shall
* ensure that the distribution and export/re-export of the software is in
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* any of its subsidiaries will export/re-export any technical data, process,
* software, or service, directly or indirectly, to any country for which the
* United States government or any agency thereof requires an export license,
* other governmental approval, or letter of assurance, without first obtaining
* such license, approval or letter.
*
*****************************************************************************/
#define __UTDEBUG_C__
#include "acpi.h"
#include "accommon.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME ("utdebug")
#ifdef ACPI_DEBUG_OUTPUT
static ACPI_THREAD_ID AcpiGbl_PrevThreadId = (ACPI_THREAD_ID) 0xFFFFFFFF;
static char *AcpiGbl_FnEntryStr = "----Entry";
static char *AcpiGbl_FnExitStr = "----Exit-";
/* Local prototypes */
static const char *
AcpiUtTrimFunctionName (
const char *FunctionName);
/*******************************************************************************
*
* FUNCTION: AcpiUtInitStackPtrTrace
*
* PARAMETERS: None
*
* RETURN: None
*
* DESCRIPTION: Save the current CPU stack pointer at subsystem startup
*
******************************************************************************/
void
AcpiUtInitStackPtrTrace (
void)
{
ACPI_SIZE CurrentSp;
AcpiGbl_EntryStackPointer = &CurrentSp;
}
/*******************************************************************************
*
* FUNCTION: AcpiUtTrackStackPtr
*
* PARAMETERS: None
*
* RETURN: None
*
* DESCRIPTION: Save the current CPU stack pointer
*
******************************************************************************/
void
AcpiUtTrackStackPtr (
void)
{
ACPI_SIZE CurrentSp;
if (&CurrentSp < AcpiGbl_LowestStackPointer)
{
AcpiGbl_LowestStackPointer = &CurrentSp;
}
if (AcpiGbl_NestingLevel > AcpiGbl_DeepestNesting)
{
AcpiGbl_DeepestNesting = AcpiGbl_NestingLevel;
}
}
/*******************************************************************************
*
* FUNCTION: AcpiUtTrimFunctionName
*
* PARAMETERS: FunctionName - Ascii string containing a procedure name
*
* RETURN: Updated pointer to the function name
*
* DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
* This allows compiler macros such as __FUNCTION__ to be used
* with no change to the debug output.
*
******************************************************************************/
static const char *
AcpiUtTrimFunctionName (
const char *FunctionName)
{
/* All Function names are longer than 4 chars, check is safe */
if (*(ACPI_CAST_PTR (UINT32, FunctionName)) == ACPI_PREFIX_MIXED)
{
/* This is the case where the original source has not been modified */
return (FunctionName + 4);
}
if (*(ACPI_CAST_PTR (UINT32, FunctionName)) == ACPI_PREFIX_LOWER)
{
/* This is the case where the source has been 'linuxized' */
return (FunctionName + 5);
}
return (FunctionName);
}
/*******************************************************************************
*
* FUNCTION: AcpiDebugPrint
*
* PARAMETERS: RequestedDebugLevel - Requested debug print level
* LineNumber - Caller's line number (for error output)
* FunctionName - Caller's procedure name
* ModuleName - Caller's module name
* ComponentId - Caller's component ID
* Format - Printf format field
* ... - Optional printf arguments
*
* RETURN: None
*
* DESCRIPTION: Print error message with prefix consisting of the module name,
* line number, and component ID.
*
******************************************************************************/
void ACPI_INTERNAL_VAR_XFACE
AcpiDebugPrint (
UINT32 RequestedDebugLevel,
UINT32 LineNumber,
const char *FunctionName,
const char *ModuleName,
UINT32 ComponentId,
const char *Format,
...)
{
ACPI_THREAD_ID ThreadId;
va_list args;
/*
* Stay silent if the debug level or component ID is disabled
*/
if (!(RequestedDebugLevel & AcpiDbgLevel) ||
!(ComponentId & AcpiDbgLayer))
{
return;
}
/*
* Thread tracking and context switch notification
*/
ThreadId = AcpiOsGetThreadId ();
if (ThreadId != AcpiGbl_PrevThreadId)
{
if (ACPI_LV_THREADS & AcpiDbgLevel)
{
AcpiOsPrintf (
"\n**** Context Switch from TID %p to TID %p ****\n\n",
ACPI_CAST_PTR (void, AcpiGbl_PrevThreadId),
ACPI_CAST_PTR (void, ThreadId));
}
AcpiGbl_PrevThreadId = ThreadId;
}
/*
* Display the module name, current line number, thread ID (if requested),
* current procedure nesting level, and the current procedure name
*/
AcpiOsPrintf ("%8s-%04ld ", ModuleName, LineNumber);
if (ACPI_LV_THREADS & AcpiDbgLevel)
{
AcpiOsPrintf ("[%p] ", ACPI_CAST_PTR (void, ThreadId));
}
AcpiOsPrintf ("[%02ld] %-22.22s: ",
AcpiGbl_NestingLevel, AcpiUtTrimFunctionName (FunctionName));
va_start (args, Format);
AcpiOsVprintf (Format, args);
va_end (args);
}
ACPI_EXPORT_SYMBOL (AcpiDebugPrint)
/*******************************************************************************
*
* FUNCTION: AcpiDebugPrintRaw
*
* PARAMETERS: RequestedDebugLevel - Requested debug print level
* LineNumber - Caller's line number
* FunctionName - Caller's procedure name
* ModuleName - Caller's module name
* ComponentId - Caller's component ID
* Format - Printf format field
* ... - Optional printf arguments
*
* RETURN: None
*
* DESCRIPTION: Print message with no headers. Has same interface as
* DebugPrint so that the same macros can be used.
*
******************************************************************************/
void ACPI_INTERNAL_VAR_XFACE
AcpiDebugPrintRaw (
UINT32 RequestedDebugLevel,
UINT32 LineNumber,
const char *FunctionName,
const char *ModuleName,
UINT32 ComponentId,
const char *Format,
...)
{
va_list args;
if (!(RequestedDebugLevel & AcpiDbgLevel) ||
!(ComponentId & AcpiDbgLayer))
{
return;
}
va_start (args, Format);
AcpiOsVprintf (Format, args);
va_end (args);
}
ACPI_EXPORT_SYMBOL (AcpiDebugPrintRaw)
/*******************************************************************************
*
* FUNCTION: AcpiUtTrace
*
* PARAMETERS: LineNumber - Caller's line number
* FunctionName - Caller's procedure name
* ModuleName - Caller's module name
* ComponentId - Caller's component ID
*
* RETURN: None
*
* DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
* set in DebugLevel
*
******************************************************************************/
void
AcpiUtTrace (
UINT32 LineNumber,
const char *FunctionName,
const char *ModuleName,
UINT32 ComponentId)
{
AcpiGbl_NestingLevel++;
AcpiUtTrackStackPtr ();
AcpiDebugPrint (ACPI_LV_FUNCTIONS,
LineNumber, FunctionName, ModuleName, ComponentId,
"%s\n", AcpiGbl_FnEntryStr);
}
ACPI_EXPORT_SYMBOL (AcpiUtTrace)
/*******************************************************************************
*
* FUNCTION: AcpiUtTracePtr
*
* PARAMETERS: LineNumber - Caller's line number
* FunctionName - Caller's procedure name
* ModuleName - Caller's module name
* ComponentId - Caller's component ID
* Pointer - Pointer to display
*
* RETURN: None
*
* DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
* set in DebugLevel
*
******************************************************************************/
void
AcpiUtTracePtr (
UINT32 LineNumber,
const char *FunctionName,
const char *ModuleName,
UINT32 ComponentId,
void *Pointer)
{
AcpiGbl_NestingLevel++;
AcpiUtTrackStackPtr ();
AcpiDebugPrint (ACPI_LV_FUNCTIONS,
LineNumber, FunctionName, ModuleName, ComponentId,
"%s %p\n", AcpiGbl_FnEntryStr, Pointer);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtTraceStr
*
* PARAMETERS: LineNumber - Caller's line number
* FunctionName - Caller's procedure name
* ModuleName - Caller's module name
* ComponentId - Caller's component ID
* String - Additional string to display
*
* RETURN: None
*
* DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
* set in DebugLevel
*
******************************************************************************/
void
AcpiUtTraceStr (
UINT32 LineNumber,
const char *FunctionName,
const char *ModuleName,
UINT32 ComponentId,
char *String)
{
AcpiGbl_NestingLevel++;
AcpiUtTrackStackPtr ();
AcpiDebugPrint (ACPI_LV_FUNCTIONS,
LineNumber, FunctionName, ModuleName, ComponentId,
"%s %s\n", AcpiGbl_FnEntryStr, String);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtTraceU32
*
* PARAMETERS: LineNumber - Caller's line number
* FunctionName - Caller's procedure name
* ModuleName - Caller's module name
* ComponentId - Caller's component ID
* Integer - Integer to display
*
* RETURN: None
*
* DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
* set in DebugLevel
*
******************************************************************************/
void
AcpiUtTraceU32 (
UINT32 LineNumber,
const char *FunctionName,
const char *ModuleName,
UINT32 ComponentId,
UINT32 Integer)
{
AcpiGbl_NestingLevel++;
AcpiUtTrackStackPtr ();
AcpiDebugPrint (ACPI_LV_FUNCTIONS,
LineNumber, FunctionName, ModuleName, ComponentId,
"%s %08X\n", AcpiGbl_FnEntryStr, Integer);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtExit
*
* PARAMETERS: LineNumber - Caller's line number
* FunctionName - Caller's procedure name
* ModuleName - Caller's module name
* ComponentId - Caller's component ID
*
* RETURN: None
*
* DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
* set in DebugLevel
*
******************************************************************************/
void
AcpiUtExit (
UINT32 LineNumber,
const char *FunctionName,
const char *ModuleName,
UINT32 ComponentId)
{
AcpiDebugPrint (ACPI_LV_FUNCTIONS,
LineNumber, FunctionName, ModuleName, ComponentId,
"%s\n", AcpiGbl_FnExitStr);
AcpiGbl_NestingLevel--;
}
ACPI_EXPORT_SYMBOL (AcpiUtExit)
/*******************************************************************************
*
* FUNCTION: AcpiUtStatusExit
*
* PARAMETERS: LineNumber - Caller's line number
* FunctionName - Caller's procedure name
* ModuleName - Caller's module name
* ComponentId - Caller's component ID
* Status - Exit status code
*
* RETURN: None
*
* DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
* set in DebugLevel. Prints exit status also.
*
******************************************************************************/
void
AcpiUtStatusExit (
UINT32 LineNumber,
const char *FunctionName,
const char *ModuleName,
UINT32 ComponentId,
ACPI_STATUS Status)
{
if (ACPI_SUCCESS (Status))
{
AcpiDebugPrint (ACPI_LV_FUNCTIONS,
LineNumber, FunctionName, ModuleName, ComponentId,
"%s %s\n", AcpiGbl_FnExitStr,
AcpiFormatException (Status));
}
else
{
AcpiDebugPrint (ACPI_LV_FUNCTIONS,
LineNumber, FunctionName, ModuleName, ComponentId,
"%s ****Exception****: %s\n", AcpiGbl_FnExitStr,
AcpiFormatException (Status));
}
AcpiGbl_NestingLevel--;
}
ACPI_EXPORT_SYMBOL (AcpiUtStatusExit)
/*******************************************************************************
*
* FUNCTION: AcpiUtValueExit
*
* PARAMETERS: LineNumber - Caller's line number
* FunctionName - Caller's procedure name
* ModuleName - Caller's module name
* ComponentId - Caller's component ID
* Value - Value to be printed with exit msg
*
* RETURN: None
*
* DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
* set in DebugLevel. Prints exit value also.
*
******************************************************************************/
void
AcpiUtValueExit (
UINT32 LineNumber,
const char *FunctionName,
const char *ModuleName,
UINT32 ComponentId,
UINT64 Value)
{
AcpiDebugPrint (ACPI_LV_FUNCTIONS,
LineNumber, FunctionName, ModuleName, ComponentId,
"%s %8.8X%8.8X\n", AcpiGbl_FnExitStr,
ACPI_FORMAT_UINT64 (Value));
AcpiGbl_NestingLevel--;
}
ACPI_EXPORT_SYMBOL (AcpiUtValueExit)
/*******************************************************************************
*
* FUNCTION: AcpiUtPtrExit
*
* PARAMETERS: LineNumber - Caller's line number
* FunctionName - Caller's procedure name
* ModuleName - Caller's module name
* ComponentId - Caller's component ID
* Ptr - Pointer to display
*
* RETURN: None
*
* DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
* set in DebugLevel. Prints exit value also.
*
******************************************************************************/
void
AcpiUtPtrExit (
UINT32 LineNumber,
const char *FunctionName,
const char *ModuleName,
UINT32 ComponentId,
UINT8 *Ptr)
{
AcpiDebugPrint (ACPI_LV_FUNCTIONS,
LineNumber, FunctionName, ModuleName, ComponentId,
"%s %p\n", AcpiGbl_FnExitStr, Ptr);
AcpiGbl_NestingLevel--;
}
#endif
/*******************************************************************************
*
* FUNCTION: AcpiUtDumpBuffer
*
* PARAMETERS: Buffer - Buffer to dump
* Count - Amount to dump, in bytes
* Display - BYTE, WORD, DWORD, or QWORD display
* ComponentID - Caller's component ID
*
* RETURN: None
*
* DESCRIPTION: Generic dump buffer in both hex and ascii.
*
******************************************************************************/
void
AcpiUtDumpBuffer2 (
UINT8 *Buffer,
UINT32 Count,
UINT32 Display)
{
UINT32 i = 0;
UINT32 j;
UINT32 Temp32;
UINT8 BufChar;
if (!Buffer)
{
AcpiOsPrintf ("Null Buffer Pointer in DumpBuffer!\n");
return;
}
if ((Count < 4) || (Count & 0x01))
{
Display = DB_BYTE_DISPLAY;
}
/* Nasty little dump buffer routine! */
while (i < Count)
{
/* Print current offset */
AcpiOsPrintf ("%6.4X: ", i);
/* Print 16 hex chars */
for (j = 0; j < 16;)
{
if (i + j >= Count)
{
/* Dump fill spaces */
AcpiOsPrintf ("%*s", ((Display * 2) + 1), " ");
j += Display;
continue;
}
switch (Display)
{
case DB_BYTE_DISPLAY:
default: /* Default is BYTE display */
AcpiOsPrintf ("%02X ", Buffer[(ACPI_SIZE) i + j]);
break;
case DB_WORD_DISPLAY:
ACPI_MOVE_16_TO_32 (&Temp32, &Buffer[(ACPI_SIZE) i + j]);
AcpiOsPrintf ("%04X ", Temp32);
break;
case DB_DWORD_DISPLAY:
ACPI_MOVE_32_TO_32 (&Temp32, &Buffer[(ACPI_SIZE) i + j]);
AcpiOsPrintf ("%08X ", Temp32);
break;
case DB_QWORD_DISPLAY:
ACPI_MOVE_32_TO_32 (&Temp32, &Buffer[(ACPI_SIZE) i + j]);
AcpiOsPrintf ("%08X", Temp32);
ACPI_MOVE_32_TO_32 (&Temp32, &Buffer[(ACPI_SIZE) i + j + 4]);
AcpiOsPrintf ("%08X ", Temp32);
break;
}
j += Display;
}
/*
* Print the ASCII equivalent characters but watch out for the bad
* unprintable ones (printable chars are 0x20 through 0x7E)
*/
AcpiOsPrintf (" ");
for (j = 0; j < 16; j++)
{
if (i + j >= Count)
{
AcpiOsPrintf ("\n");
return;
}
BufChar = Buffer[(ACPI_SIZE) i + j];
if (ACPI_IS_PRINT (BufChar))
{
AcpiOsPrintf ("%c", BufChar);
}
else
{
AcpiOsPrintf (".");
}
}
/* Done with that line. */
AcpiOsPrintf ("\n");
i += 16;
}
return;
}
/*******************************************************************************
*
* FUNCTION: AcpiUtDumpBuffer
*
* PARAMETERS: Buffer - Buffer to dump
* Count - Amount to dump, in bytes
* Display - BYTE, WORD, DWORD, or QWORD display
* ComponentID - Caller's component ID
*
* RETURN: None
*
* DESCRIPTION: Generic dump buffer in both hex and ascii.
*
******************************************************************************/
void
AcpiUtDumpBuffer (
UINT8 *Buffer,
UINT32 Count,
UINT32 Display,
UINT32 ComponentId)
{
/* Only dump the buffer if tracing is enabled */
if (!((ACPI_LV_TABLES & AcpiDbgLevel) &&
(ComponentId & AcpiDbgLayer)))
{
return;
}
AcpiUtDumpBuffer2 (Buffer, Count, Display);
}
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