This userspace tool accesses the EC through the ec_sys debug driver
(through /sys/kernel/debug/ec/ec0/io).

The EC command/data registers cannot be accessed directly, because they
may be manipulated by the AML interpreter in parallel.

The ec_sys driver synchronizes user space (debug) access with the AML
interpreter.
Signed-off-by: NThomas Renninger <trenn@suse.de>
[rjw: Changelog]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

 - bindir is created, but sbindir is used -> fix that
 - the debug parts are there twice (copy paste bug?). Remove one of the
   exact same parts
Signed-off-by: NThomas Renninger <trenn@suse.de>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

This patch updates tools Makefile to use new acpidump.

ACPICA's acpidump relies on various ACPICA components/common/os_specific
source code.  They are located in various kernel folders, being searched
and compiled using vpath technique in Makefile.  These files include:
1. drivers/acpi/acpica/acapps.h
2. tools/power/acpi/common/getopt.c
3. tools/power/acpi/common/cmfsize.c
4. tools/power/acpi/os_specific/service_layers/oslinuxtbl.c
5. tools/power/acpi/os_specific/service_layers/osunixdir.c
6. tools/power/acpi/os_specific/service_layers/osunixmap.c

This patch has been tested on DELL Inspiron Mini, acpidump output can be
successfully generated by typing the following commands:
# cd tools/power/acpi
# make DEBUG=false
# sudo make install DESTDIR=/opt
# sudo make uninstall DESTDIR=/opt
# make clean
Or
# cd tools
# make acpi
# sudo make acpi_install
# sudo make acpi_uninstall
# make acpi_clean
A kernel build test is also performed on DELL Inspiron Mini to verify that
the changes done to actypes.h and aclinux.h won't affect the kernel
build process.
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
[rjw: Subject]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

This patch cleans up old tools/power/acpi Makefile for further porting,
make it compiled in a similar way as the other tools.  No functional
changes.

The CFLAGS is modified as follows:
1. Previous cc flags:
   -Wall -Wstrict-prototypes -Wdeclaration-after-statement -Os -s \
   -D_LINUX -DDEFINE_ALTERNATE_TYPES -I../../../include
2. Current cc flags:
   DEBUG=false:
   -D_LINUX -DDEFINE_ALTERNATE_TYPES -I../../../include -Wall \
   -Wstrict-prototypes -Wdeclaration-after-statement -Os \
   -fomit-frame-pointer
   Normal:
   -D_LINUX -DDEFINE_ALTERNATE_TYPES -I../../../include -Wall \
   -Wstrict-prototypes -Wdeclaration-after-statement -O1 -g -DDEBUG

There is only one difference: -fomit-frame-pointer.
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Change the default location to install acpidump into from /usr/bin
to /usr/sbin, as this tool needs to be run as root.

[rjw: Subject and changelog]
Signed-off-by: NThomas Renninger <trenn@suse.de>
Tested-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Signed-off-by: NLen Brown <len.brown@intel.com>

Signed-off-by: NLen Brown <len.brown@intel.com>

This is unchanged version 20070714, plus a small bit in
DEFINE_ALTERNATE_TYPES to enable building with latest kernel headers.
Signed-off-by: NLen Brown <len.brown@intel.com>

This is unchanged version 20051111, plus a small bit in
DEFINE_ALTERNATE_TYPES to enable building with latest kernel headers.
Signed-off-by: NLen Brown <len.brown@intel.com>