From 58b46d9e37469dc4497867b2424cf8f23dde4db4 Mon Sep 17 00:00:00 2001
From: Liav A <liavalb@gmail.com>
Date: Sat, 21 May 2022 19:38:50 +0300
Subject: [PATCH] Utilities: Add edid-dump program to dump EDID from Display
 connectors

---
 Userland/Utilities/CMakeLists.txt |  1 +
 Userland/Utilities/edid-dump.cpp  | 38 +++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 Userland/Utilities/edid-dump.cpp

diff --git a/Userland/Utilities/CMakeLists.txt b/Userland/Utilities/CMakeLists.txt
index 593aa5741b6..d4f35c26571 100644
--- a/Userland/Utilities/CMakeLists.txt
+++ b/Userland/Utilities/CMakeLists.txt
@@ -107,6 +107,7 @@ target_link_libraries(disk_benchmark LibMain)
 target_link_libraries(dmesg LibMain)
 target_link_libraries(du LibMain)
 target_link_libraries(echo LibMain)
+target_link_libraries(edid-dump LibMain LibEDID)
 target_link_libraries(env LibMain)
 target_link_libraries(errno LibMain)
 target_link_libraries(expr LibRegex LibMain)
diff --git a/Userland/Utilities/edid-dump.cpp b/Userland/Utilities/edid-dump.cpp
new file mode 100644
index 00000000000..2ac465b249c
--- /dev/null
+++ b/Userland/Utilities/edid-dump.cpp
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <AK/String.h>
+#include <AK/StringUtils.h>
+#include <LibCore/ArgsParser.h>
+#include <LibCore/System.h>
+#include <LibEDID/EDID.h>
+#include <LibMain/Main.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+ErrorOr<int> serenity_main(Main::Arguments arguments)
+{
+    TRY(Core::System::pledge("stdio rpath wpath"));
+
+    StringView display_connector_file_name;
+    Core::ArgsParser args;
+    args.add_positional_argument(display_connector_file_name, "Display Connector Device Path", "display connector file name", Core::ArgsParser::Required::Yes);
+
+    args.parse(arguments);
+
+    auto edid = TRY(EDID::Parser::from_framebuffer_device(display_connector_file_name, 0));
+
+    out("{}", StringView { edid.bytes() });
+    return 0;
+}