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/*
* Copyright 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <condition_variable>
#include <mutex>
#include <optional>
#include <unordered_map>
#include <vector>
#include <EventHub.h>
#include <InputDevice.h>
#include <ftl/flags.h>
#include <input/PropertyMap.h>
#include <input/VirtualKeyMap.h>
#include <utils/Errors.h>
#include <utils/KeyedVector.h>
namespace android {
class FakeEventHub : public EventHubInterface {
struct KeyInfo {
int32_t keyCode;
uint32_t flags;
};
struct SensorInfo {
InputDeviceSensorType sensorType;
int32_t sensorDataIndex;
};
struct Device {
InputDeviceIdentifier identifier;
ftl::Flags<InputDeviceClass> classes;
PropertyMap configuration;
KeyedVector<int, RawAbsoluteAxisInfo> absoluteAxes;
KeyedVector<int, bool> relativeAxes;
KeyedVector<int32_t, int32_t> keyCodeStates;
KeyedVector<int32_t, int32_t> scanCodeStates;
KeyedVector<int32_t, int32_t> switchStates;
KeyedVector<int32_t, int32_t> absoluteAxisValue;
KeyedVector<int32_t, KeyInfo> keysByScanCode;
KeyedVector<int32_t, KeyInfo> keysByUsageCode;
std::map<int32_t, int32_t> keyRemapping;
KeyedVector<int32_t, bool> leds;
// fake mapping which would normally come from keyCharacterMap
std::unordered_map<int32_t, int32_t> keyCodeMapping;
std::unordered_map<int32_t, SensorInfo> sensorsByAbsCode;
BitArray<MSC_MAX> mscBitmask;
std::vector<VirtualKeyDefinition> virtualKeys;
bool enabled;
std::optional<RawLayoutInfo> layoutInfo;
std::string sysfsRootPath;
std::unordered_map<int32_t, std::vector<int32_t>> mtSlotValues;
status_t enable() {
enabled = true;
return OK;
}
status_t disable() {
enabled = false;
return OK;
}
explicit Device(ftl::Flags<InputDeviceClass> classes) : classes(classes), enabled(true) {}
};
std::mutex mLock;
std::condition_variable mEventsCondition;
KeyedVector<int32_t, Device*> mDevices;
std::vector<std::string> mExcludedDevices;
std::vector<RawEvent> mEvents GUARDED_BY(mLock);
std::unordered_map<int32_t /*deviceId*/, std::vector<TouchVideoFrame>> mVideoFrames;
std::vector<int32_t> mVibrators = {0, 1};
std::unordered_map<int32_t, RawLightInfo> mRawLightInfos;
// Simulates a device light brightness, from light id to light brightness.
std::unordered_map<int32_t /* lightId */, int32_t /* brightness*/> mLightBrightness;
// Simulates a device light intensities, from light id to light intensities map.
std::unordered_map<int32_t /* lightId */, std::unordered_map<LightColor, int32_t>>
mLightIntensities;
// fake sysfs node path and value.
std::unordered_map<int32_t /*deviceId*/, bool /* wakeupNode*/> mKernelWakeup;
public:
static constexpr int32_t DEFAULT_BATTERY = 1;
static constexpr int32_t BATTERY_STATUS = 4;
static constexpr int32_t BATTERY_CAPACITY = 66;
static const std::string BATTERY_DEVPATH;
virtual ~FakeEventHub();
FakeEventHub() {}
void addDevice(int32_t deviceId, const std::string& name, ftl::Flags<InputDeviceClass> classes,
int bus = 0);
void removeDevice(int32_t deviceId);
bool isDeviceEnabled(int32_t deviceId) const override;
status_t enableDevice(int32_t deviceId) override;
status_t disableDevice(int32_t deviceId) override;
void addConfigurationProperty(int32_t deviceId, const char* key, const char* value);
void addConfigurationMap(int32_t deviceId, const PropertyMap* configuration);
void addAbsoluteAxis(int32_t deviceId, int axis, int32_t minValue, int32_t maxValue, int flat,
int fuzz, int resolution = 0);
void addRelativeAxis(int32_t deviceId, int32_t axis);
void setAbsoluteAxisValue(int32_t deviceId, int32_t axis, int32_t value);
void setRawLayoutInfo(int32_t deviceId, RawLayoutInfo info);
void setKeyCodeState(int32_t deviceId, int32_t keyCode, int32_t state);
void setScanCodeState(int32_t deviceId, int32_t scanCode, int32_t state);
void setSwitchState(int32_t deviceId, int32_t switchCode, int32_t state);
void addKey(int32_t deviceId, int32_t scanCode, int32_t usageCode, int32_t keyCode,
uint32_t flags);
void addKeyCodeMapping(int32_t deviceId, int32_t fromKeyCode, int32_t toKeyCode);
void setKeyRemapping(int32_t deviceId, const std::map<int32_t, int32_t>& keyRemapping) const;
void addVirtualKeyDefinition(int32_t deviceId, const VirtualKeyDefinition& definition);
void addSensorAxis(int32_t deviceId, int32_t absCode, InputDeviceSensorType sensorType,
int32_t sensorDataIndex);
void setMscEvent(int32_t deviceId, int32_t mscEvent);
void addLed(int32_t deviceId, int32_t led, bool initialState);
void addRawLightInfo(int32_t rawId, RawLightInfo&& info);
void fakeLightBrightness(int32_t rawId, int32_t brightness);
void fakeLightIntensities(int32_t rawId,
const std::unordered_map<LightColor, int32_t> intensities);
bool getLedState(int32_t deviceId, int32_t led);
std::vector<std::string>& getExcludedDevices();
void setVideoFrames(
std::unordered_map<int32_t /*deviceId*/, std::vector<TouchVideoFrame>> videoFrames);
void enqueueEvent(nsecs_t when, nsecs_t readTime, int32_t deviceId, int32_t type, int32_t code,
int32_t value);
void assertQueueIsEmpty();
void setSysfsRootPath(int32_t deviceId, std::string sysfsRootPath) const;
// Populate fake slot values to be returned by the getter, size of the values should be equal to
// the slot count
void setMtSlotValues(int32_t deviceId, int32_t axis, const std::vector<int32_t>& values);
base::Result<std::vector<int32_t>> getMtSlotValues(int32_t deviceId, int32_t axis,
size_t slotCount) const override;
bool setKernelWakeEnabled(int32_t deviceId, bool enabled) override;
bool fakeReadKernelWakeup(int32_t deviceId) const;
private:
Device* getDevice(int32_t deviceId) const;
ftl::Flags<InputDeviceClass> getDeviceClasses(int32_t deviceId) const override;
InputDeviceIdentifier getDeviceIdentifier(int32_t deviceId) const override;
int32_t getDeviceControllerNumber(int32_t) const override;
std::optional<PropertyMap> getConfiguration(int32_t deviceId) const override;
std::optional<RawAbsoluteAxisInfo> getAbsoluteAxisInfo(int32_t deviceId,
int axis) const override;
bool hasRelativeAxis(int32_t deviceId, int axis) const override;
bool hasInputProperty(int32_t, int) const override;
bool hasMscEvent(int32_t deviceId, int mscEvent) const override final;
status_t mapKey(int32_t deviceId, int32_t scanCode, int32_t usageCode, int32_t metaState,
int32_t* outKeycode, int32_t* outMetaState, uint32_t* outFlags) const override;
const KeyInfo* getKey(Device* device, int32_t scanCode, int32_t usageCode) const;
status_t mapAxis(int32_t, int32_t, AxisInfo*) const override;
base::Result<std::pair<InputDeviceSensorType, int32_t>> mapSensor(
int32_t deviceId, int32_t absCode) const override;
void setExcludedDevices(const std::vector<std::string>& devices) override;
std::vector<RawEvent> getEvents(int) override;
std::vector<TouchVideoFrame> getVideoFrames(int32_t deviceId) override;
int32_t getScanCodeState(int32_t deviceId, int32_t scanCode) const override;
std::optional<RawLayoutInfo> getRawLayoutInfo(int32_t deviceId) const override;
int32_t getKeyCodeState(int32_t deviceId, int32_t keyCode) const override;
int32_t getSwitchState(int32_t deviceId, int32_t sw) const override;
std::optional<int32_t> getAbsoluteAxisValue(int32_t deviceId, int32_t axis) const override;
int32_t getKeyCodeForKeyLocation(int32_t deviceId, int32_t locationKeyCode) const override;
// Return true if the device has non-empty key layout.
bool markSupportedKeyCodes(int32_t deviceId, const std::vector<int32_t>& keyCodes,
uint8_t* outFlags) const override;
bool hasScanCode(int32_t deviceId, int32_t scanCode) const override;
bool hasKeyCode(int32_t deviceId, int32_t keyCode) const override;
bool hasLed(int32_t deviceId, int32_t led) const override;
void setLedState(int32_t deviceId, int32_t led, bool on) override;
void getVirtualKeyDefinitions(int32_t deviceId,
std::vector<VirtualKeyDefinition>& outVirtualKeys) const override;
const std::shared_ptr<KeyCharacterMap> getKeyCharacterMap(int32_t) const override;
bool setKeyboardLayoutOverlay(int32_t, std::shared_ptr<KeyCharacterMap>) override;
void vibrate(int32_t, const VibrationElement&) override {}
void cancelVibrate(int32_t) override {}
std::vector<int32_t> getVibratorIds(int32_t deviceId) const override;
std::optional<int32_t> getBatteryCapacity(int32_t, int32_t) const override;
std::optional<int32_t> getBatteryStatus(int32_t, int32_t) const override;
std::vector<int32_t> getRawBatteryIds(int32_t deviceId) const override;
std::optional<RawBatteryInfo> getRawBatteryInfo(int32_t deviceId,
int32_t batteryId) const override;
std::vector<int32_t> getRawLightIds(int32_t deviceId) const override;
std::optional<RawLightInfo> getRawLightInfo(int32_t deviceId, int32_t lightId) const override;
void setLightBrightness(int32_t deviceId, int32_t lightId, int32_t brightness) override;
void setLightIntensities(int32_t deviceId, int32_t lightId,
std::unordered_map<LightColor, int32_t> intensities) override;
std::optional<int32_t> getLightBrightness(int32_t deviceId, int32_t lightId) const override;
std::optional<std::unordered_map<LightColor, int32_t>> getLightIntensities(
int32_t deviceId, int32_t lightId) const override;
std::filesystem::path getSysfsRootPath(int32_t deviceId) const override;
void sysfsNodeChanged(const std::string& sysfsNodePath) override;
void dump(std::string&) const override {}
void monitor() const override {}
void requestReopenDevices() override {}
void wake() override {}
};
} // namespace android
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