02 July 2010. Summary of changes for version 20100702:
This release is available at www.acpica.org/downloads
1) ACPI CA Core Subsystem:
Implemented several updates to the recently added GPE reference count support.
The model for "wake" GPEs is changing to give the host OS complete control of
these GPEs. Eventually, the ACPICA core will not execute any _PRW methods,
since the host already must execute them. Also, additional changes were made to
help ensure that the reference counts are kept in proper synchronization with
reality. Rafael J. Wysocki.
1) Ensure that GPEs are not enabled twice during initialization.
2) Ensure that GPE enable masks stay in sync with the reference count.
3) Do not inadvertently enable GPEs when writing GPE registers.
4) Remove the internal wake reference counter and add new AcpiGpeWakeup
interface. This interface will set or clear individual GPEs for wakeup.
5) Remove GpeType argument from AcpiEnable and AcpiDisable. These interfaces
are now used for "runtime" GPEs only.
Changed the behavior of the GPE install/remove handler interfaces. The GPE is
no longer disabled during this process, as it was found to cause problems on
some machines. Rafael J. Wysocki.
Reverted a change introduced in version 20100528 to enable Embedded Controller
multi-byte transfers. This change was found to cause problems with Index Fields
and possibly Bank Fields. It will be reintroduced when these problems have been
resolved.
Fixed a problem with references to Alias objects within Package Objects. A
reference to an Alias within the definition of a Package was not always
resolved properly. Aliases to objects like Processors, Thermal zones, etc. were
resolved to the actual object instead of a reference to the object as it should
be. Package objects are only allowed to contain integer, string, buffer,
package, and reference objects. Redhat bugzilla 608648.
Example Code and Data Size: These are the sizes for the OS-independent
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The debug
version of the code includes the debug output trace mechanism and has a much
larger code and data size.
Previous Release:
Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total
Debug Version: 164.1K Code, 51.5K Data, 215.6K Total
Current Release:
Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total
Debug Version: 164.0K Code, 51.5K Data, 215.5K Total
2) iASL Compiler/Disassembler and Tools:
iASL: Implemented a new compiler subsystem to allow definition and compilation
of the non-AML ACPI tables such as FADT, MADT, SRAT, etc. These are called
"ACPI Data Tables", and the new compiler is the "Data Table Compiler". This
compiler is intended to simplify the existing error-prone process of creating
these tables for the BIOS, as well as allowing the disassembly, modification,
recompilation, and override of existing ACPI data tables. See the iASL User
Guide for detailed information.
iASL: Implemented a new Template Generator option in support of the new Data
Table Compiler. This option will create examples of all known ACPI tables that
can be used as the basis for table development. See the iASL documentation and
the -T option.
Disassembler and headers: Added support for the WDDT ACPI table (Watchdog
Descriptor Table).
Updated the Linux makefiles for iASL and AcpiExec to place the generated object
files in the local directory so that there can be no collisions between the
shared files between them that are generated with different options.
Added support for Mac OS X in the Unix OSL used for iASL and AcpiExec. Use the
#define __APPLE__ to enable this support.
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