def pnp_uart(path, uid, ddn, port, irq):
resources = []
cls = rdt.SmallResourceItemIOPort
length = ctypes.sizeof(cls)
data = bytearray(length)
res = cls.from_buffer(data)
res.type = 0
res.name = rdt.SMALL_RESOURCE_ITEM_IO_PORT
res.length = 7
res._DEC = 1
res._MIN = port
res._MAX = port
res._ALN = 1
res._LEN = 8
resources.append(data)
cls = rdt.SmallResourceItemIRQ_factory(2)
length = ctypes.sizeof(cls)
data = bytearray(length)
res = cls.from_buffer(data)
res.type = 0
res.name = rdt.SMALL_RESOURCE_ITEM_IRQ_FORMAT
res.length = 2
res._INT = 1 << irq
resources.append(data)
resources.append(bytes([0x79, 0]))
resource_buf = bytearray().join(resources)
checksum = (256 - (sum(resource_buf) % 256)) % 256
resource_buf[-1] = checksum
uart = builder.DefDevice(
builder.PkgLength(),
path,
builder.TermList(
builder.DefName(
"_HID",
builder.DWordConst(encode_eisa_id("PNP0501"))),
builder.DefName(
"_UID",
builder.build_value(uid)),
builder.DefName(
"_DDN",
builder.String(ddn)),
builder.DefName(
"_CRS",
builder.DefBuffer(
builder.PkgLength(),
builder.WordConst(len(resource_buf)),
builder.ByteList(resource_buf)))))
return uart
def __get_scope_contents(self, termlist, path):
scopes = [i for i in path.lstrip("\\").split(".") if i]
ret = termlist
for scope in scopes:
for term in ret:
if term.label in ["DefScope", "DefDevice"] and term.NameString.value == scope:
ret = term.TermList.children
break
else:
tree = builder.DefScope(builder.PkgLength(), scope, builder.TermList())
ret.append(tree)
ret = tree.TermList.children
return ret
def extract(args, board_etree):
devices_node = get_node(board_etree, "//devices")
try:
namespace = parse_dsdt()
except Exception as e:
logging.warning(f"Parse ACPI DSDT/SSDT failed: {str(e)}")
logging.warning(f"Will not extract information from ACPI DSDT/SSDT")
return
interpreter = ConcreteInterpreter(namespace)
# With IOAPIC, Linux kernel will choose APIC mode as the IRQ model. Evalaute the \_PIC method (if exists) to inform the ACPI
# namespace of this.
try:
interpreter.interpret_method_call("\\_PIC", 1)
except:
logging.info(f"\\_PIC is not evaluated.")
for device in sorted(namespace.devices, key=lambda x:x.name):
try:
fetch_device_info(devices_node, interpreter, device.name, args)
except Exception as e:
logging.info(f"Fetch information about device object {device.name} failed: {str(e)}")
visitor = GenerateBinaryVisitor()
for dev, objs in device_objects.items():
element = get_node(devices_node, f"//device[acpi_object='{dev}']")
if element is not None:
tree = builder.DefDevice(
builder.PkgLength(),
dev,
builder.TermList(*list(objs.values())))
add_child(element, "aml_template", visitor.generate(tree).hex())
for dev, deps in device_deps.items():
element = get_node(devices_node, f"//device[acpi_object='{dev}']")
if element is not None:
for kind, targets in deps.items():
for target in targets:
if dev != target:
add_child(element, "dependency", target, type=kind)
def gen_root_pci_bus(path, prt_packages):
resources = []
# Bus number
cls = rdt.LargeResourceItemWordAddressSpace_factory()
length = ctypes.sizeof(cls)
data = bytearray(length)
res = cls.from_buffer(data)
res.type = 1 # Large type
res.name = rdt.LARGE_RESOURCE_ITEM_WORD_ADDRESS_SPACE
res.length = length - 3
res._TYP = 2 # Bus number range
res._DEC = 0 # Positive decoding
res._MIF = 1 # Minimum address fixed
res._MAF = 1 # Maximum address fixed
res.flags = 0
res._MAX = 0xff
res._LEN = 0x100
resources.append(data)
# The PCI hole below 4G
cls = rdt.LargeResourceItemDWordAddressSpace_factory()
length = ctypes.sizeof(cls)
data = bytearray(length)
res = cls.from_buffer(data)
res.type = 1 # Large type
res.name = rdt.LARGE_RESOURCE_ITEM_ADDRESS_SPACE_RESOURCE
res.length = length - 3
res._TYP = 0 # Memory range
res._DEC = 0 # Positive decoding
res._MIF = 1 # Minimum address fixed
res._MAF = 1 # Maximum address fixed
res.flags = 1 # read-write, non-cachable, TypeStatic
res._MIN = 0x80000000
res._MAX = 0xdfffffff
res._LEN = 0x60000000
resources.append(data)
# The PCI hole above 4G
cls = rdt.LargeResourceItemQWordAddressSpace_factory()
length = ctypes.sizeof(cls)
data = bytearray(length)
res = cls.from_buffer(data)
res.type = 1 # Large type
res.name = rdt.LARGE_RESOURCE_ITEM_QWORD_ADDRESS_SPACE
res.length = length - 3
res._TYP = 0 # Memory range
res._DEC = 0 # Positive decoding
res._MIF = 1 # Minimum address fixed
res._MAF = 1 # Maximum address fixed
res.flags = 1 # read-write, non-cachable, TypeStatic
res._MIN = 0x4000000000
res._MAX = 0x7fffffffff
res._LEN = 0x4000000000
resources.append(data)
cls = rdt.LargeResourceItemDWordAddressSpace_factory()
length = ctypes.sizeof(cls)
data = bytearray(length)
res = cls.from_buffer(data)
res.type = 1 # Large type
res.name = rdt.LARGE_RESOURCE_ITEM_ADDRESS_SPACE_RESOURCE
res.length = length - 3
res._TYP = 1 # Memory range
res._DEC = 0 # Positive decoding
res._MIF = 1 # Minimum address fixed
res._MAF = 1 # Maximum address fixed
res.flags = 3 # Entire range, TypeStatic
res._MIN = 0x0
res._MAX = 0xffff
res._LEN = 0x10000
resources.append(data)
# End tag
resources.append(bytes([0x79, 0]))
resource_buf = bytearray().join(resources)
checksum = (256 - (sum(resource_buf) % 256)) % 256
resource_buf[-1] = checksum
# Device object for the root PCI bus
tree = builder.DefDevice(
builder.PkgLength(), path,
builder.TermList(
builder.DefName("_HID",
builder.DWordConst(encode_eisa_id("PNP0A08"))),
builder.DefName("_CID",
builder.DWordConst(encode_eisa_id("PNP0A03"))),
builder.DefName("_BBN", builder.ZeroOp()),
builder.DefName("_UID", builder.ZeroOp()),
builder.DefName(
"_CRS",
builder.DefBuffer(builder.PkgLength(),
builder.WordConst(len(resource_buf)),
builder.ByteList(resource_buf))),
builder.DefName(
"_PRT",
builder.DefPackage(
builder.PkgLength(), builder.ByteData(len(prt_packages)),
builder.PackageElementList(*prt_packages)))))
return tree
