From be030a576854238250d70135644cde6a0ba34b0d Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Fri, 17 Aug 2012 13:07:54 +0800 Subject: ACPICA: Add support for complex _PLD buffers. _PLD (Physical Location of Device) returns a bit-packed buffer that is difficult to parse. This change adds a new interface, AcpiDecodePldBuffer that parses the buffer into a more usable local struct. Also adds macros to both get and set individual fields within the packed _PLD buffer. Adds a new include file, acbuffer.h - which will be expanded to add structs for other ACPI names that return buffers. ACPICA BZ 954. Emit (in comments) the decoded contents of a static _PLD buffer in order to improve comprehension of this bit-packed buffer. Add multi-endian support to the _PLD decode routine. Deploy the multi-endian macros to extract data from the _PLD buffer. Signed-off-by: Bob Moore Signed-off-by: Feng Tang Signed-off-by: Len Brown --- include/acpi/acpixf.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/acpi/acpixf.h') diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 26a92fc28a5..270517d6b1b 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -52,6 +52,7 @@ #include "acconfig.h" #include "actypes.h" #include "actbl.h" +#include "acbuffer.h" extern u8 acpi_gbl_permanent_mmap; @@ -144,6 +145,10 @@ acpi_check_address_range(acpi_adr_space_type space_id, acpi_physical_address address, acpi_size length, u8 warn); +acpi_status +acpi_decode_pld_buffer(u8 *in_buffer, + acpi_size length, struct acpi_pld_info **return_buffer); + /* * ACPI Memory management */ -- cgit v1.2.3-18-g5258