This allows to extract the beginning, end and name of a Device object.
Signed-off-by: Vasilis Liaskovitis vasilis.liaskovitis@profitbricks.com --- tools/acpi_extract.py | 28 ++++++++++++++++++++++++++++ 1 files changed, 28 insertions(+), 0 deletions(-)
diff --git a/tools/acpi_extract.py b/tools/acpi_extract.py index 167a322..cb2540e 100755 --- a/tools/acpi_extract.py +++ b/tools/acpi_extract.py @@ -195,6 +195,28 @@ def aml_package_start(offset): offset += 1 return offset + aml_pkglen_bytes(offset) + 1
+def aml_device_start(offset): + #0x5B 0x82 DeviceOp PkgLength NameString ProcID + if ((aml[offset] != 0x5B) or (aml[offset + 1] != 0x82)): + die( "Name offset 0x%x: expected 0x5B 0x83 actual 0x%x 0x%x" % + (offset, aml[offset], aml[offset + 1])); + return offset + +def aml_device_string(offset): + #0x5B 0x82 DeviceOp PkgLength NameString ProcID + start = aml_device_start(offset) + offset += 2 + pkglenbytes = aml_pkglen_bytes(offset) + offset += pkglenbytes + return offset + +def aml_device_end(offset): + start = aml_device_start(offset) + offset += 2 + pkglenbytes = aml_pkglen_bytes(offset) + pkglen = aml_pkglen(offset) + return offset + pkglen + lineno = 0 for line in fileinput.input(): # Strip trailing newline @@ -279,6 +301,12 @@ for i in range(len(asl)): offset = aml_processor_end(offset) elif (directive == "ACPI_EXTRACT_PKG_START"): offset = aml_package_start(offset) + elif (directive == "ACPI_EXTRACT_DEVICE_START"): + offset = aml_device_start(offset) + elif (directive == "ACPI_EXTRACT_DEVICE_STRING"): + offset = aml_device_string(offset) + elif (directive == "ACPI_EXTRACT_DEVICE_END"): + offset = aml_device_end(offset) else: die("Unsupported directive %s" % directive)