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Obtained from:	ACPI for FreeBSD project
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Mitsuru IWASAKI 2000-09-14 22:48:39 +00:00
parent 215e338b51
commit 37a23ef8ee
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=65867
4 changed files with 516 additions and 4 deletions
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3
usr.sbin/acpi/acpidump/Makefile
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PROG= acpidump
SRCS= acpi.c acpi_user.c asl_dump.c aml_dump.c acpidump.c
NOMAN= yes
#MAN8= acpidump.8
MAN8= acpidump.8
#DEBUG_FLAGS= -g
.include <bsd.prog.mk>

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usr.sbin/acpi/acpidump/acpidump.8 Normal file
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.\" ACPI (ACPI Package)
.\"
.\" Copyright (c) 1999 Doug Rabson <dfr@FreeBSD.org>
.\" Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
.\" Copyright (c) 2000 Yasuo YOKOYAMA <yokoyama@jp.FreeBSD.org>
.\" Copyright (c) 2000 Hiroki Sato <hrs@FreeBSD.org>
.\" All rights reserved.
.\"
.\" 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 THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS 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.
.\"
.\" $FreeBSD$
.\"
.Dd August 31, 2000
.Dt ACPIDUMP 8
.Os FreeBSD 5.0
.Sh NAME
.Nm acpidump
.Nd dump ACPI tables
.Sh SYNOPSIS
.Nm acpidump
.Nm acpidump
.Op Fl o Ar dsdt_file_for_output
.Nm acpidump
.Op Fl f Ar dsdt_file_for_input
.Sh DESCRIPTION
The
.Nm
command analyzes ACPI tables in physical memory and dumps them to standard output.
In addition,
.Nm
can disassemble some contents of the tables in AML
.Pq ACPI Machine Language
and dump them in ASL
.Pq ACPI Source Language .
.Pp
ACPI tables have an notably essential data block called DSDT
.Pq Differentiated System Description Table ,
that includes information used on the kernel side such as
detail information about PnP hardware, procedures for controlling
a power management support and so on.
.Nm
can extract a DSDT data block from physical memory and store it into
a DSDT data file, and also can generate an output in ASL
from a given DSDT data file.
.Pp
When
.Nm
is invoked with no option, it will search ACPI tables from physical
memory via a special file
.Pa /dev/mem
and dump them. First, it searches Root System Description Pointer,
that has a signature
.Qq RSD PTR\ \& ,
and then gets RSDT
.Pq Root System Description Table ,
which includes a list of pointers to physical memory addresses
for other tables.
RSDT itself and all other tables linked from RSDT are generically
called SDT
.Pq System Description Table
and their header has the common format which consists of items
such as Signature, Length, Revision, Checksum, OEMID, OEM Table ID,
OEM Revision, Creator ID and Creator Revision.
.Nm
dumps contents of these SDTs.
For further information about formats of each table,
see chapter 5: ACPI Software Programming Model,
.Dq Advanced Configuration and Power Interface Specification Revision 1.0b
from Intel/Microsoft/Toshiba.
.Pp
There is always a pointer to a physical memory address in RSDT for FACP
.Pq Fixed ACPI Description Table .
.Ns \ FACP defines static system information about power management support
.Pq ACPI Hardware Register Implementation
such as interrupt mode
.Pq INT_MODEL ,
SCI interrupt number, SMI command port
.Pq SMI_CMD
and location of ACPI registers.
FACP also has a pointer to a physical memory address for DSDT,
which includes information used on the kernel side such as
PnP, power management support and so on.
While the other tables are described in fixed format,
DSDT consists of AML data which compiled from sources
written in free formated ASL, description language for ACPI.
When
.Nm
outputs DSDT, it disassembles the AML data and
translates them into ASL.
.Sh OPTIONS
The following options are supported by
.Nm Ns :
.Bl -tag -width indent
.It Fl o Ar dsdt_file_for_output
Stores DSDT data block from physical memory into a file specified in
.Ar dsdt_file_for_output
in addition to behavior with no option.
.It Fl f Ar dsdt_file_for_input
Interprets AML data in DSDT from a file specified in
.Ar dsdt_file_for_input
and dumps them in ASL to standard output.
.It Fl h
Displays usage and exit.
.El
.Sh EXAMPLES
This is an example to get a dump of SDTs and a DSDT data file
simultaneously on a machine that supports ACPI BIOS.
.Bd -literal -offset indent
# acpidump -o foo.dsdt > foo.asl
.Ed
.Sh BUGS
In the current implementation,
.Nm
doesn't dump any information of Firmware ACPI Control Structure
.Pq FACS
specified by a pointer in FACP.
Some parts of output in ASL are incomplete. To obtain a complete
output, it would need to change the implementation into another one
that analyzes a whole DSDT and builds an ACPI namespace as preprocess,
and then interprets the DSDT again referring to namespace.
.Sh FILES
.Bl -tag -width /dev/mem
.It Pa /dev/mem
.El
.Sh SEE ALSO
.Xr mem 4 ,
.Xr acpi 4 ,
.Xr acpiconf 8 ,
.Xr amldb 8
.Pp
.Dq Advanced Configuration and Power Interfce Specification
.Bd -literal -offset indent -compact
Intel
Microsoft
Toshiba
Revision 1.0b
.Ed
<URL:http://www.teleport.com/~acpi/>
.Sh AUTHORS
.An Doug Rabson Aq dfr@FreeBSD.org
.An Mitsuru IWASAKI Aq iwasaki@FreeBSD.org
.An Yasuo YOKOYAMA Aq yokoyama@jp.FreeBSD.org
.Pp
Some contributions made by
.An Chitoshi Ohsawa Aq ohsawa@catv1.ccn-net.ne.jp ,
.An Takayasu IWANASHI Aq takayasu@wendy.a.perfect-liberty.or.jp ,
.An Yoshihiko SARUMARU Aq mistral@imasy.or.jp ,
.An Hiroki Sato Aq hrs@FreeBSD.org ,
and
.An Michael Lucas Aq mwlucas@blackhelicopters.org .
.Sh HISTORY
The
.Nm
command appeared in
.Fx 5.0 .

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usr.sbin/acpi/amldb/Makefile
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PROG= amldb
SRCS= amldb.c debug.c region.c
SRCS+= aml_parse.c aml_name.c aml_amlmem.c aml_memman.c aml_store.c aml_obj.c aml_evalobj.c aml_common.c
NOMAN= yes
#MAN8= amldb.8
MAN8= amldb.8
#DEBUG_FLAGS= -g
CFLAGS+= -I${.CURDIR}/../../../sys -I${.CURDIR}

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usr.sbin/acpi/amldb/amldb.8 Normal file
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.\" ACPI (ACPI Package)
.\"
.\" Copyright (c) 2000 Takanori Watanabe <takawata@FreeBSD.org>
.\" Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
.\" Copyright (c) 2000 Yasuo YOKOYAMA <yokoyama@jp.FreeBSD.org>
.\" Copyright (c) 2000 Norihiro KUMAGAI <kumagai@home.com>
.\"
.\" 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 THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS 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.
.\"
.\" $FreeBSD$
.\"
.Dd August 31, 2000
.Dt AMLDB 8
.Os FreeBSD 5.0
.Sh NAME
.Nm amldb
.Nd executing and debugging AML interpreter
.Pq with DSDT files
.Sh SYNOPSIS
.Nm amldb
.Op Fl dhst
.Ar dsdt_file ...
.Sh DESCRIPTION
.Nm Amldb
parses the DSDT
.Pq Differentiated System Description Table
files, which usually are acquired from ACPI BIOS, and executes
the sequence of ACPI Control Methods described in AML
.Pq ACPI Machine Language
with its AML interpreter.
.Nm Amldb
also has a simple ACPI virtual machine. During execution of the
Control Methods each access to the region, such as
SystemMemory, SystemIO, PCI_Config, does not affect the real
hardware but only the virtual machine.
Because the sequence of virtual accesses is maintained in user space,
AML interpreter developers need not worry about any effect on hardware
when they analyze DSDT data files. They can develop and debug the
interpreter, even if the machine has no ACPI BIOS.
.Pp
The developer will need to acquire a DSDT data file from any machine
with ACPI BIOS through
.Xr acpidump 8 .
The DSDT is a table, a part of the whole ACPI memory table
located in somewhere in the BIOS area
.Pq 0xa0000 \- 0x100000 .
It includes such information as the detailed hardware information
for PnP, and the set of procedures which perform power management from
the OS. The information is stored in AML format.
.Pp
The AML interpreter can execute any of the Control Methods specified
by users. When executed, it interprets the byte sequence in the
Control Method of DSDT, and disassembles the opecodes that it
recognizes into ASL
.Pq ACPI Source Language
format to be displayed.
.Pp
If it encounters one of more accesses to the region such as
SystemMemory in executing the Control Methods, its ACPI Virtual
Machine simulates the input/output operations to the resources in the
region. In writing to a certain region, the ACPI Virtual Machine
prepares a piece of memory corresponding to its address,
if necessary, and holds the specified value in the memory as the
.Em region contents .
In reading from a certain region, it fetches the value in the memory
.Pq Em region contents ,
prompts with it as the following:
.Bd -literal -offset indent
DEBUG[read(0, 0x100b6813)&mask:0x1](default: 0x1 / 1) >>
.Ed
.Pp
for users to have the opportunity to modify it, and hands it to
the AML interpreter. In case that there is no corresponding region
in the AML Virtual Machine, the value zero is handed.
.Pp
The interpreter continues to maintain all of the
.Em region contents
until
.Nm
terminates. You can specify their initial values with the file
.Pa region.ini
in the current directory. If it is executed with
.Fl d
option, it dumps the final status of all of its
.Em region contents
to the file
.Pa region.dmp
when it terminates. Each line of there files consists of the following
fields, separated by tabs; region type, address, and value.
Region types are specified as follows;
.TS H
box;
c | l.
value region type
=
0 SystemMemory
1 SystemIO
2 PCI_Concig
3 EmbeddedControl
4 SMBus
.TE
.Pp
Interactive commands are described below:
.Bl -tag -width indent
.It Cm s
.Em Single step:
Performs single-step execution of the current Control Method. If
the next instruction is an invocation of another Control Method,
the step execution will continue in the following Control Method.
.It Cm n
.Em Step program:
Performs single-step execution of the current Control Method.
Even if the next instruction is an invocation of another Control
Method, the step execution will not continue.
.It Cm c
.Em Continue program being debugged:
Resumes execution of the AML interpreter. Because the current
.Nm
has no way of breakpoint, this command might not so much useful.
.It Cm q
.Em Quit method execution:
Terminates execution of the current Control Method. If
.Nm
is not in execution, this command causes to input the next
DSDT data file. If there are no next DSDT data files, it
terminates
.Nm
itself.
.It Cm t
.Em Show local name space tree and variables:
Displays the structure of the ACPI namespace tree. If
.Nm
is in execution, this command displays the structure that relates
to the objects, arguments, and local variables below the scope of the
current Control Method.
.It Cm i
.Em Toggle region input prompt:
Switches whether the prompt for modifying the value read from the
.Em region contents
be showed or not. Default is On.
.It Cm o
.Em Toggle region output prompt:
Switches whether the prompt for modifying the value to be written
to the region contents will be shown or not. The default is Off.
.It Cm m
.Em Show memory management statistics:
Displays the current statistics of the memory management system
on the AML interpreter.
.It Cm r Ar method
.Em Run specified method:
Executes the specified Control Method. If it requires one or
more arguments, a prompt such as the following appears;
.Bd -literal
Method: Arg 1 From 0x280626ce To 0x28062775
Enter argument values (ex. number 1 / string foo). 'q' to quit.
Arg0 ?
.Ed
.Pp
For each argument, a pair of type string and value delimited by
one or more spaces can be entered. Now only
.Ic number
and
.Ic string
can be specified as the type string.
In the current implementation, only the first character of the type
string, such as
.Ic n
or
.Ic s ,
is identified. For example, we can enter as follows:
.Bd -literal
Arg0 ? n 1
.Ed
.Pp
.It Cm f Ar string
.Em Find named objects from namespace:
Lists the named objects that includes the specified string as the
terminate elements searching from the ACPI namespace. For the
namespace is expressed as the sequence of four-character elements,
appropriate number of additional underscore
.Pq Sq _
characters are necessary for specifying objects which have less than four
character string. Unless additional underscores specified, matching
occurs as the beginning of word with the specified number of characters.
.It Cm h
.Em Show help messsage:
Displays the command summary of
.Nm amldb .
.El
.Pp
.Sh OPTIONS
Exactly one of the following options must be specified. Otherwise,
.Nm amldb
shows its usage and terminates.
.Bl -tag -width indent
.It Fl d
Dump the final status of all of the
.Em region contents
in the ACPI Virtual Machine to the file
.Pa region.dmp .
.It Fl h
Terminate with the usage of this command.
.It Fl s
Display the statistics of the memory management system on the
AML interpreter when
.Nm
terminates.
.It Fl t
Display the tree structure of ACPI namespace after the
DSDT data file is read.
.El
.Sh EXAMPLES
The following is an example including, invoking the
.Nm amldb ,
searching
.Li _PRS
.Pq Possible Resource Settings
objects, and executing the
.Li _PTS
.Pq Prepare To Sleep
Control Method by the AML interpreter.
.Bd -literal -offset indent
% amldb p2b.dsdt.dat
Loading p2b.dsdt.dat...done
AML>f _PRS
\\_SB_.PCI0.ISA_.PS2M._PRS.
\\_SB_.PCI0.ISA_.IRDA._PRS.
\\_SB_.PCI0.ISA_.UAR2._PRS.
\\_SB_.PCI0.ISA_.UAR1._PRS.
\\_SB_.PCI0.ISA_.ECP_._PRS.
\\_SB_.PCI0.ISA_.LPT_._PRS.
\\_SB_.PCI0.ISA_.FDC0._PRS.
\\_SB_.LNKD._PRS.
\\_SB_.LNKC._PRS.
\\_SB_.LNKB._PRS.
\\_SB_.LNKA._PRS.
AML>r _PTS
Method: Arg 1 From 0x2805f0a3 To 0x2805f0db
Enter argument values (ex. number 1 / string foo). 'q' to quit.
Arg0 ? n 5
==== Running _PTS. ====
AML>s
[\_PTS. START]
If(LNot(LEqual(Arg0, 0x5)))
AML>
If(LEqual(Arg0, 0x1))
AML>
If(LEqual(Arg0, 0x2))
AML>
Store(One, TO12)
[aml_region_write(1, 1, 0x1, 0xe42c, 0x18, 0x1)]
amldb: region.ini: No such file or directory
[1:0x00@0xe42f]->[1:0x01@0xe42f]
[write(1, 0x1, 0xe42f)]
[aml_region_read(1, 1, 0xe42c, 0x18, 0x1)]
[1:0x01@0xe42f]
DEBUG[read(1, 0xe42f)&mask:0x1](default: 0x1 / 1) >>
[read(1, 0xe42f)->0x1]
AML>
Or(Arg0, 0xf0, Local2)[Copy number 0xf5]
AML>t
_PTS Method: Arg 1 From 0x2805f0a3 To 0x2805f0db
Arg0 Num:0x5
Local2 Num:0xf5
AML>s
Store(Local2, DBG1)
[aml_region_write(1, 1, 0xf5, 0x80, 0x0, 0x8)]
[1:0x00@0x80]->[1:0xf5@0x80]
[write(1, 0xf5, 0x80)]
[aml_region_read(1, 1, 0x80, 0x0, 0x8)]
[1:0xf5@0x80]
DEBUG[read(1, 0x80)&mask:0xf5](default: 0xf5 / 245) >>
[read(1, 0x80)->0xf5]
AML>
[\_PTS. END]
_PTS Method: Arg 1 From 0x2805f0a3 To 0x2805f0db
NO object
==== _PTS finished. ====
AML>q
%
.Ed
.Pp
.Sh BUGS
The ACPI virtual machine does not completely simulate the behavior
of a machine with an ACPI BIOS. In the current implementation, the
ACPI virtual machine only reads or writes the stored values by
emulating access to regions such as SystemMemory.
.Pp
Because the AML interpreter interprets and disassembles
simultaneously, it is impossible to implement such features as setting
breakpoints with the specified line number in ASL. Setting breakpoints
at certain Control Methods, which is not very difficult, has not
yet implemented because nobody has ever needed it.
.Sh FILES
.Bl -tag -width region.ini -compact
.It Pa region.ini
.br
.It Pa region.dmp
.El
.Sh SEE ALSO
.Xr acpi 4 ,
.Xr acpiconf 8 ,
.Xr acpidump 8
.Pp
.Sh AUTHORS
.An Takanori Watanabe Aq takawata@FreeBSD.org
.An Mitsuru IWASAKI Aq iwasaki@FreeBSD.org
.An Yasuo YOKOYAMA Aq yokoyama@jp.FreeBSD.org
.Pp
Some contributions made by
.An Chitoshi Ohsawa Aq ohsawa@catv1.ccn-net.ne.jp ,
.An Takayasu IWANASHI Aq takayasu@wendy.a.perfect-liberty.or.jp ,
.An Norihiro KUMAGAI Aq kumagai@home.com ,
.An Kenneth Ingham Aq ingham@I-pi.com ,
and
.An Michael Lucas Aq mwlucas@blackhelicopters.org .
.Sh HISTORY
The
.Nm
command appeared in
.Fx 5.0 .