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config-tools: add topology extract_display

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This method gets connected displays andis add them as child nodes to
a corresponding graphics card.

Tracked-On: #7970
Signed-off-by: Yang,Yu-chu <yu-chu.yang@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
This commit is contained in:
Yang,Yu-chu 2022-10-04 10:39:19 -07:00 committed by acrnsi-robot
parent b235e88f24
commit ce5b4435bc
2 changed files with 50 additions and 4 deletions
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51
misc/config_tools/board_inspector/extractors/70-device-classes.py
View File

@ -5,10 +5,14 @@
import re, os
import logging
from extractors.helpers import add_child, get_node
from extractors.helpers import add_child, get_node, get_bdf_from_realpath
from collections import defaultdict
from pathlib import Path
SYS_INPUT_DEVICES_CLASS_PATH = "/sys/class/input/"
SYS_TTY_DEVICES_CLASS_PATH = "/sys/class/tty/"
SYS_DISPLAYS_INFO_PATH = "/sys/class/drm/"
def add_child_with_file_contents(parent_node, tag, filepath, translations = {}):
try:
@ -48,10 +52,51 @@ def extract_ttys(device_classes_node):
add_child(serial_node, "dev_path", f"/dev/{serial_dev}")
add_child_with_file_contents(serial_node, "type", f"{SYS_TTY_DEVICES_CLASS_PATH}{serial_dev}/type")
def extract_topology(device_classes_node):
def extract_display(board_etree):
display_regex = re.compile("(card[0-9])-(DP|HDMI|VGA)-.*")
display_types = {
"DP": "DisplayPort (DP)",
"HDMI": "High Definition Multimedia Interface (HDMI)",
"VGA": "Video Graphics Array (VGA)",
}
display_ids = defaultdict(lambda: 0)
for root in filter(lambda x: x.startswith("card"), os.listdir(SYS_DISPLAYS_INFO_PATH)):
displays_path = SYS_DISPLAYS_INFO_PATH + root
status_path = f"{displays_path}/status"
device_path = f"{displays_path}/device/device"
m = display_regex.match(root)
if m:
try:
assert Path(status_path).exists(), \
f"{status_path} does not exist and connection status of {root} cannot be detected. Failed to add " \
f"{root} to board XML."
assert Path(device_path).exists(), \
f"{device_path} does not exist and the graphics card which {root} is connected to cannot be detected. " \
f"Failed to add {root} to board XML"
with open(f"{status_path}", "r") as f:
if f.read().strip() == "connected":
bus, device, function = \
get_bdf_from_realpath(f"{device_path}")
adr = hex((device << 16) + function)
bus_node = get_node(board_etree, f"//bus[@type='pci' and @address='{hex(bus)}']")
if bus_node is None:
devices_node = get_node(board_etree, "//devices")
bus_node = add_child(devices_node, "bus", type="pci", address=hex(bus))
device_node = get_node(bus_node, f"./device[@address='{adr}']")
if device_node is None:
device_node = add_child(bus_node, "device", None, address=adr)
bdf = (bus, device, function)
display_id = display_ids[bdf]
add_child(device_node, "display", f"{display_id}", type=display_types[m.group(2)])
display_ids[bdf] += 1
except Exception as e:
logging.warning(f"{e}")
def extract_topology(device_classes_node, board_etree):
extract_inputs(device_classes_node)
extract_ttys(device_classes_node)
extract_display(board_etree)
def extract(args, board_etree):
device_classes_node = get_node(board_etree, "//device-classes")
extract_topology(device_classes_node)
extract_topology(device_classes_node, board_etree)

3
misc/config_tools/board_inspector/extractors/90-sorting.py
View File

@ -28,7 +28,8 @@ def getkey(child):
tags = ["vendor", "identifier", "subsystem_vendor", "subsystem_identifier", "class",
"acpi_object", "compatible_id", "acpi_uid", "aml_template", "status",
"resource", "capability", "interrupt_pin_routing", "dependency", "bus", "device", "physfn"]
"resource", "capability", "interrupt_pin_routing", "dependency", "bus", "device",
"physfn", "display"]
if child.tag == "resource":
return (tags.index(child.tag), child.get("type"), resource_subkey(child))