Fetch country code information from Device sysfs path
HID devices report the country code via sysfs. Need to read it
and pass it and save it as a member variable to InputDevice
In subsequent CLs will use it to auto-detect a layout for PK.
More information in DD: go/pk_auto_layout_detection
Test: atest inputflinger_tests:InputReaderTest
Bug: 242715614
Change-Id: I73ca7518dbee3e563c41024bb3ed41261c8d7846
diff --git a/services/inputflinger/reader/EventHub.cpp b/services/inputflinger/reader/EventHub.cpp
index 06a38c8..336763c 100644
--- a/services/inputflinger/reader/EventHub.cpp
+++ b/services/inputflinger/reader/EventHub.cpp
@@ -61,6 +61,7 @@
#define INDENT3 " "
using android::base::StringPrintf;
+using android::hardware::input::InputDeviceCountryCode;
namespace android {
@@ -302,6 +303,24 @@
}
/**
+ * Read country code information exposed through the sysfs path.
+ */
+static InputDeviceCountryCode readCountryCodeLocked(const std::filesystem::path& sysfsRootPath) {
+ // Check the sysfs root path
+ int hidCountryCode = static_cast<int>(InputDeviceCountryCode::INVALID);
+ std::string str;
+ if (base::ReadFileToString(sysfsRootPath / "country", &str)) {
+ hidCountryCode = std::stoi(str, nullptr, 16);
+ LOG_ALWAYS_FATAL_IF(hidCountryCode > 35 || hidCountryCode < 0,
+ "HID country code should be in range [0, 35]. Found country code "
+ "to be %d",
+ hidCountryCode);
+ }
+
+ return static_cast<InputDeviceCountryCode>(hidCountryCode);
+}
+
+/**
* Read information about batteries exposed through the sysfs path.
*/
static std::unordered_map<int32_t /*batteryId*/, RawBatteryInfo> readBatteryConfiguration(
@@ -1238,6 +1257,15 @@
}
}
+InputDeviceCountryCode EventHub::getCountryCode(int32_t deviceId) const {
+ std::scoped_lock _l(mLock);
+ Device* device = getDeviceLocked(deviceId);
+ if (device == nullptr || !device->associatedDevice) {
+ return InputDeviceCountryCode::INVALID;
+ }
+ return device->associatedDevice->countryCode;
+}
+
void EventHub::setExcludedDevices(const std::vector<std::string>& devices) {
std::scoped_lock _l(mLock);
@@ -1384,6 +1412,7 @@
return std::make_shared<AssociatedDevice>(
AssociatedDevice{.sysfsRootPath = path,
+ .countryCode = readCountryCodeLocked(path),
.batteryInfos = readBatteryConfiguration(path),
.lightInfos = readLightsConfiguration(path)});
}
@@ -2553,6 +2582,9 @@
device->keyMap.keyLayoutFile.c_str());
dump += StringPrintf(INDENT3 "KeyCharacterMapFile: %s\n",
device->keyMap.keyCharacterMapFile.c_str());
+ dump += StringPrintf(INDENT3 "CountryCode: %d\n",
+ device->associatedDevice ? device->associatedDevice->countryCode
+ : InputDeviceCountryCode::INVALID);
dump += StringPrintf(INDENT3 "ConfigurationFile: %s\n",
device->configurationFile.c_str());
dump += StringPrintf(INDENT3 "VideoDevice: %s\n",
diff --git a/services/inputflinger/reader/InputDevice.cpp b/services/inputflinger/reader/InputDevice.cpp
index 5c9e63e..8eadcdc 100644
--- a/services/inputflinger/reader/InputDevice.cpp
+++ b/services/inputflinger/reader/InputDevice.cpp
@@ -35,6 +35,8 @@
#include "SwitchInputMapper.h"
#include "VibratorInputMapper.h"
+using android::hardware::input::InputDeviceCountryCode;
+
namespace android {
InputDevice::InputDevice(InputReaderContext* context, int32_t id, int32_t generation,
@@ -240,6 +242,7 @@
mSources = 0;
mClasses = ftl::Flags<InputDeviceClass>(0);
mControllerNumber = 0;
+ mCountryCode = InputDeviceCountryCode::INVALID;
for_each_subdevice([this](InputDeviceContext& context) {
mClasses |= context.getDeviceClasses();
@@ -251,6 +254,16 @@
}
mControllerNumber = controllerNumber;
}
+
+ InputDeviceCountryCode countryCode = context.getCountryCode();
+ if (countryCode != InputDeviceCountryCode::INVALID) {
+ if (mCountryCode != InputDeviceCountryCode::INVALID && mCountryCode != countryCode) {
+ ALOGW("InputDevice::configure(): %s device contains multiple unique country "
+ "codes",
+ getName().c_str());
+ }
+ mCountryCode = countryCode;
+ }
});
mIsExternal = mClasses.test(InputDeviceClass::EXTERNAL);
@@ -422,7 +435,7 @@
InputDeviceInfo InputDevice::getDeviceInfo() {
InputDeviceInfo outDeviceInfo;
outDeviceInfo.initialize(mId, mGeneration, mControllerNumber, mIdentifier, mAlias, mIsExternal,
- mHasMic);
+ mHasMic, mCountryCode);
for_each_mapper(
[&outDeviceInfo](InputMapper& mapper) { mapper.populateDeviceInfo(&outDeviceInfo); });
diff --git a/services/inputflinger/reader/include/EventHub.h b/services/inputflinger/reader/include/EventHub.h
index 8aec367..dfb98f1 100644
--- a/services/inputflinger/reader/include/EventHub.h
+++ b/services/inputflinger/reader/include/EventHub.h
@@ -43,6 +43,7 @@
#include "TouchVideoDevice.h"
#include "VibrationElement.h"
+#include "android/hardware/input/InputDeviceCountryCode.h"
struct inotify_event;
@@ -301,9 +302,9 @@
int32_t deviceId, int32_t lightId) const = 0;
virtual void setLightIntensities(int32_t deviceId, int32_t lightId,
std::unordered_map<LightColor, int32_t> intensities) = 0;
- /*
- * Query current input state.
- */
+ /* Query Country code associated with the input device. */
+ virtual hardware::input::InputDeviceCountryCode getCountryCode(int32_t deviceId) const = 0;
+ /* Query current input state. */
virtual int32_t getScanCodeState(int32_t deviceId, int32_t scanCode) const = 0;
virtual int32_t getKeyCodeState(int32_t deviceId, int32_t keyCode) const = 0;
virtual int32_t getSwitchState(int32_t deviceId, int32_t sw) const = 0;
@@ -483,6 +484,8 @@
void setLightIntensities(int32_t deviceId, int32_t lightId,
std::unordered_map<LightColor, int32_t> intensities) override final;
+ hardware::input::InputDeviceCountryCode getCountryCode(int32_t deviceId) const override final;
+
void setExcludedDevices(const std::vector<std::string>& devices) override final;
int32_t getScanCodeState(int32_t deviceId, int32_t scanCode) const override final;
@@ -544,7 +547,7 @@
struct AssociatedDevice {
// The sysfs root path of the misc device.
std::filesystem::path sysfsRootPath;
-
+ hardware::input::InputDeviceCountryCode countryCode;
std::unordered_map<int32_t /*batteryId*/, RawBatteryInfo> batteryInfos;
std::unordered_map<int32_t /*lightId*/, RawLightInfo> lightInfos;
};
diff --git a/services/inputflinger/reader/include/InputDevice.h b/services/inputflinger/reader/include/InputDevice.h
index 51872ac..141464f 100644
--- a/services/inputflinger/reader/include/InputDevice.h
+++ b/services/inputflinger/reader/include/InputDevice.h
@@ -158,6 +158,7 @@
int32_t mId;
int32_t mGeneration;
int32_t mControllerNumber;
+ hardware::input::InputDeviceCountryCode mCountryCode;
InputDeviceIdentifier mIdentifier;
std::string mAlias;
ftl::Flags<InputDeviceClass> mClasses;
@@ -311,6 +312,9 @@
}
inline std::vector<TouchVideoFrame> getVideoFrames() { return mEventHub->getVideoFrames(mId); }
+ inline hardware::input::InputDeviceCountryCode getCountryCode() const {
+ return mEventHub->getCountryCode(mId);
+ }
inline int32_t getScanCodeState(int32_t scanCode) const {
return mEventHub->getScanCodeState(mId, scanCode);
}
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 9a0c565..ae98415 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -38,9 +38,12 @@
#include <gtest/gtest.h>
#include <gui/constants.h>
+#include "android/hardware/input/InputDeviceCountryCode.h"
#include "input/DisplayViewport.h"
#include "input/Input.h"
+using android::hardware::input::InputDeviceCountryCode;
+
namespace android {
using namespace ftl::flag_operators;
@@ -455,6 +458,7 @@
BitArray<MSC_MAX> mscBitmask;
std::vector<VirtualKeyDefinition> virtualKeys;
bool enabled;
+ InputDeviceCountryCode countryCode;
status_t enable() {
enabled = true;
@@ -584,6 +588,11 @@
device->keyCodeStates.replaceValueFor(keyCode, state);
}
+ void setCountryCode(int32_t deviceId, InputDeviceCountryCode countryCode) {
+ Device* device = getDevice(deviceId);
+ device->countryCode = countryCode;
+ }
+
void setScanCodeState(int32_t deviceId, int32_t scanCode, int32_t state) {
Device* device = getDevice(deviceId);
device->scanCodeStates.replaceValueFor(scanCode, state);
@@ -845,6 +854,14 @@
return AKEY_STATE_UNKNOWN;
}
+ InputDeviceCountryCode getCountryCode(int32_t deviceId) const override {
+ Device* device = getDevice(deviceId);
+ if (device) {
+ return device->countryCode;
+ }
+ return InputDeviceCountryCode::INVALID;
+ }
+
int32_t getKeyCodeState(int32_t deviceId, int32_t keyCode) const override {
Device* device = getDevice(deviceId);
if (device) {
@@ -2685,6 +2702,17 @@
ASSERT_EQ(ftl::Flags<InputDeviceClass>(0), mDevice->getClasses());
}
+TEST_F(InputDeviceTest, CountryCodeCorrectlyMapped) {
+ mFakeEventHub->setCountryCode(EVENTHUB_ID, InputDeviceCountryCode::INTERNATIONAL);
+
+ // Configuration
+ mDevice->addMapper<FakeInputMapper>(EVENTHUB_ID, AINPUT_SOURCE_KEYBOARD);
+ InputReaderConfiguration config;
+ mDevice->configure(ARBITRARY_TIME, &config, 0);
+
+ ASSERT_EQ(InputDeviceCountryCode::INTERNATIONAL, mDevice->getDeviceInfo().getCountryCode());
+}
+
TEST_F(InputDeviceTest, WhenDeviceCreated_EnabledIsFalse) {
ASSERT_EQ(mDevice->isEnabled(), false);
}