libinput: use libkernelconfigs insteadof libvintf

We'd like to limit the direct usage of libvintf.

Bug: 270169217
Test: atest libinput_tests
Merged-In: I7630116345e1db736a8173467fc865cea6ec4e96
Change-Id: I7630116345e1db736a8173467fc865cea6ec4e96
(cherry picked from commit 29db97cfa1e3347dc94db36fbba76384eed7f9aa)

Author: Jooyung Han

libs/input/Android.bp

@@ -221,7 +221,7 @@ cc_library {
         "liblog",
         "libPlatformProperties",
         "libtinyxml2",
-        "libvintf",
+        "libz", // needed by libkernelconfigs
     ],
 
     ldflags: [
@@ -238,6 +238,7 @@ cc_library {
         "inputconstants-cpp",
         "libui-types",
         "libtflite_static",
+        "libkernelconfigs",
     ],
 
     whole_static_libs: [

libs/input/KeyLayoutMap.cpp

@@ -27,8 +27,7 @@
 #include <utils/Timers.h>
 #include <utils/Tokenizer.h>
 #if defined(__ANDROID__)
-#include <vintf/RuntimeInfo.h>
-#include <vintf/VintfObject.h>
+#include <vintf/KernelConfigs.h>
 #endif
 
 #include <cstdlib>
@@ -98,12 +97,10 @@ static const std::unordered_map<std::string_view, InputDeviceSensorType> SENSOR_
 
 bool kernelConfigsArePresent(const std::set<std::string>& configs) {
 #if defined(__ANDROID__)
-    std::shared_ptr<const android::vintf::RuntimeInfo> runtimeInfo =
-            android::vintf::VintfObject::GetInstance()->getRuntimeInfo(
-                    vintf::RuntimeInfo::FetchFlag::CONFIG_GZ);
-    LOG_ALWAYS_FATAL_IF(runtimeInfo == nullptr, "Kernel configs could not be fetched");
+    std::map<std::string, std::string> kernelConfigs;
+    const status_t result = android::kernelconfigs::LoadKernelConfigs(&kernelConfigs);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Kernel configs could not be fetched");
 
-    const std::map<std::string, std::string>& kernelConfigs = runtimeInfo->kernelConfigs();
     for (const std::string& requiredConfig : configs) {
         const auto configIt = kernelConfigs.find(requiredConfig);
         if (configIt == kernelConfigs.end()) {

libs/input/tests/Android.bp

@@ -36,8 +36,10 @@ cc_test {
         "libgmock",
         "libgui_window_info_static",
         "libinput",
+        "libkernelconfigs",
         "libtflite_static",
         "libui-types",
+        "libz", // needed by libkernelconfigs
     ],
     cflags: [
         "-Wall",
@@ -61,7 +63,6 @@ cc_test {
         "libPlatformProperties",
         "libtinyxml2",
         "libutils",
-        "libvintf",
     ],
     data: [
         "data/*",