| /* |
| * Copyright (C) 2005 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. |
| */ |
| |
| #ifndef _RUNTIME_EVENT_HUB_H |
| #define _RUNTIME_EVENT_HUB_H |
| |
| #include <bitset> |
| #include <climits> |
| #include <unordered_map> |
| #include <vector> |
| |
| #include <ftl/Flags.h> |
| #include <filesystem> |
| |
| #include <batteryservice/BatteryService.h> |
| #include <input/Input.h> |
| #include <input/InputDevice.h> |
| #include <input/KeyCharacterMap.h> |
| #include <input/KeyLayoutMap.h> |
| #include <input/Keyboard.h> |
| #include <input/PropertyMap.h> |
| #include <input/VirtualKeyMap.h> |
| #include <linux/input.h> |
| #include <sys/epoll.h> |
| #include <utils/BitSet.h> |
| #include <utils/Errors.h> |
| #include <utils/KeyedVector.h> |
| #include <utils/List.h> |
| #include <utils/Log.h> |
| #include <utils/Mutex.h> |
| |
| #include "TouchVideoDevice.h" |
| #include "VibrationElement.h" |
| |
| namespace android { |
| |
| /* Number of colors : {red, green, blue} */ |
| static constexpr size_t COLOR_NUM = 3; |
| /* |
| * A raw event as retrieved from the EventHub. |
| */ |
| struct RawEvent { |
| // Time when the event happened |
| nsecs_t when; |
| // Time when the event was read by EventHub. Only populated for input events. |
| // For other events (device added/removed/etc), this value is undefined and should not be read. |
| nsecs_t readTime; |
| int32_t deviceId; |
| int32_t type; |
| int32_t code; |
| int32_t value; |
| }; |
| |
| /* Describes an absolute axis. */ |
| struct RawAbsoluteAxisInfo { |
| bool valid; // true if the information is valid, false otherwise |
| |
| int32_t minValue; // minimum value |
| int32_t maxValue; // maximum value |
| int32_t flat; // center flat position, eg. flat == 8 means center is between -8 and 8 |
| int32_t fuzz; // error tolerance, eg. fuzz == 4 means value is +/- 4 due to noise |
| int32_t resolution; // resolution in units per mm or radians per mm |
| |
| inline void clear() { |
| valid = false; |
| minValue = 0; |
| maxValue = 0; |
| flat = 0; |
| fuzz = 0; |
| resolution = 0; |
| } |
| }; |
| |
| /* |
| * Input device classes. |
| */ |
| enum class InputDeviceClass : uint32_t { |
| /* The input device is a keyboard or has buttons. */ |
| KEYBOARD = 0x00000001, |
| |
| /* The input device is an alpha-numeric keyboard (not just a dial pad). */ |
| ALPHAKEY = 0x00000002, |
| |
| /* The input device is a touchscreen or a touchpad (either single-touch or multi-touch). */ |
| TOUCH = 0x00000004, |
| |
| /* The input device is a cursor device such as a trackball or mouse. */ |
| CURSOR = 0x00000008, |
| |
| /* The input device is a multi-touch touchscreen. */ |
| TOUCH_MT = 0x00000010, |
| |
| /* The input device is a directional pad (implies keyboard, has DPAD keys). */ |
| DPAD = 0x00000020, |
| |
| /* The input device is a gamepad (implies keyboard, has BUTTON keys). */ |
| GAMEPAD = 0x00000040, |
| |
| /* The input device has switches. */ |
| SWITCH = 0x00000080, |
| |
| /* The input device is a joystick (implies gamepad, has joystick absolute axes). */ |
| JOYSTICK = 0x00000100, |
| |
| /* The input device has a vibrator (supports FF_RUMBLE). */ |
| VIBRATOR = 0x00000200, |
| |
| /* The input device has a microphone. */ |
| MIC = 0x00000400, |
| |
| /* The input device is an external stylus (has data we want to fuse with touch data). */ |
| EXTERNAL_STYLUS = 0x00000800, |
| |
| /* The input device has a rotary encoder */ |
| ROTARY_ENCODER = 0x00001000, |
| |
| /* The input device has a sensor like accelerometer, gyro, etc */ |
| SENSOR = 0x00002000, |
| |
| /* The input device has a battery */ |
| BATTERY = 0x00004000, |
| |
| /* The input device has sysfs controllable lights */ |
| LIGHT = 0x00008000, |
| |
| /* The input device is virtual (not a real device, not part of UI configuration). */ |
| VIRTUAL = 0x40000000, |
| |
| /* The input device is external (not built-in). */ |
| EXTERNAL = 0x80000000, |
| }; |
| |
| enum class SysfsClass : uint32_t { |
| POWER_SUPPLY = 0, |
| LEDS = 1, |
| |
| ftl_last = LEDS |
| }; |
| |
| enum class LightColor : uint32_t { |
| RED = 0, |
| GREEN = 1, |
| BLUE = 2, |
| }; |
| |
| enum class InputLightClass : uint32_t { |
| /* The input light has brightness node. */ |
| BRIGHTNESS = 0x00000001, |
| /* The input light has red name. */ |
| RED = 0x00000002, |
| /* The input light has green name. */ |
| GREEN = 0x00000004, |
| /* The input light has blue name. */ |
| BLUE = 0x00000008, |
| /* The input light has global name. */ |
| GLOBAL = 0x00000010, |
| /* The input light has multi index node. */ |
| MULTI_INDEX = 0x00000020, |
| /* The input light has multi intensity node. */ |
| MULTI_INTENSITY = 0x00000040, |
| /* The input light has max brightness node. */ |
| MAX_BRIGHTNESS = 0x00000080, |
| }; |
| |
| enum class InputBatteryClass : uint32_t { |
| /* The input device battery has capacity node. */ |
| CAPACITY = 0x00000001, |
| /* The input device battery has capacity_level node. */ |
| CAPACITY_LEVEL = 0x00000002, |
| /* The input device battery has status node. */ |
| STATUS = 0x00000004, |
| }; |
| |
| /* Describes a raw light. */ |
| struct RawLightInfo { |
| int32_t id; |
| std::string name; |
| std::optional<int32_t> maxBrightness; |
| Flags<InputLightClass> flags; |
| std::array<int32_t, COLOR_NUM> rgbIndex; |
| std::filesystem::path path; |
| }; |
| |
| /* Describes a raw battery. */ |
| struct RawBatteryInfo { |
| int32_t id; |
| std::string name; |
| Flags<InputBatteryClass> flags; |
| std::filesystem::path path; |
| }; |
| |
| /* |
| * Gets the class that owns an axis, in cases where multiple classes might claim |
| * the same axis for different purposes. |
| */ |
| extern Flags<InputDeviceClass> getAbsAxisUsage(int32_t axis, Flags<InputDeviceClass> deviceClasses); |
| |
| /* |
| * Grand Central Station for events. |
| * |
| * The event hub aggregates input events received across all known input |
| * devices on the system, including devices that may be emulated by the simulator |
| * environment. In addition, the event hub generates fake input events to indicate |
| * when devices are added or removed. |
| * |
| * The event hub provides a stream of input events (via the getEvent function). |
| * It also supports querying the current actual state of input devices such as identifying |
| * which keys are currently down. Finally, the event hub keeps track of the capabilities of |
| * individual input devices, such as their class and the set of key codes that they support. |
| */ |
| class EventHubInterface { |
| public: |
| EventHubInterface() {} |
| virtual ~EventHubInterface() {} |
| |
| // Synthetic raw event type codes produced when devices are added or removed. |
| enum { |
| // Sent when a device is added. |
| DEVICE_ADDED = 0x10000000, |
| // Sent when a device is removed. |
| DEVICE_REMOVED = 0x20000000, |
| // Sent when all added/removed devices from the most recent scan have been reported. |
| // This event is always sent at least once. |
| FINISHED_DEVICE_SCAN = 0x30000000, |
| |
| FIRST_SYNTHETIC_EVENT = DEVICE_ADDED, |
| }; |
| |
| virtual Flags<InputDeviceClass> getDeviceClasses(int32_t deviceId) const = 0; |
| |
| virtual InputDeviceIdentifier getDeviceIdentifier(int32_t deviceId) const = 0; |
| |
| virtual int32_t getDeviceControllerNumber(int32_t deviceId) const = 0; |
| |
| virtual void getConfiguration(int32_t deviceId, PropertyMap* outConfiguration) const = 0; |
| |
| virtual status_t getAbsoluteAxisInfo(int32_t deviceId, int axis, |
| RawAbsoluteAxisInfo* outAxisInfo) const = 0; |
| |
| virtual bool hasRelativeAxis(int32_t deviceId, int axis) const = 0; |
| |
| virtual bool hasInputProperty(int32_t deviceId, int property) const = 0; |
| |
| virtual bool hasMscEvent(int32_t deviceId, int mscEvent) const = 0; |
| |
| virtual 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 = 0; |
| |
| virtual status_t mapAxis(int32_t deviceId, int32_t scanCode, AxisInfo* outAxisInfo) const = 0; |
| |
| // Sets devices that are excluded from opening. |
| // This can be used to ignore input devices for sensors. |
| virtual void setExcludedDevices(const std::vector<std::string>& devices) = 0; |
| |
| /* |
| * Wait for events to become available and returns them. |
| * After returning, the EventHub holds onto a wake lock until the next call to getEvent. |
| * This ensures that the device will not go to sleep while the event is being processed. |
| * If the device needs to remain awake longer than that, then the caller is responsible |
| * for taking care of it (say, by poking the power manager user activity timer). |
| * |
| * The timeout is advisory only. If the device is asleep, it will not wake just to |
| * service the timeout. |
| * |
| * Returns the number of events obtained, or 0 if the timeout expired. |
| */ |
| virtual size_t getEvents(int timeoutMillis, RawEvent* buffer, size_t bufferSize) = 0; |
| virtual std::vector<TouchVideoFrame> getVideoFrames(int32_t deviceId) = 0; |
| virtual base::Result<std::pair<InputDeviceSensorType, int32_t>> mapSensor(int32_t deviceId, |
| int32_t absCode) = 0; |
| // Raw batteries are sysfs power_supply nodes we found from the EventHub device sysfs node, |
| // containing the raw info of the sysfs node structure. |
| virtual const std::vector<int32_t> getRawBatteryIds(int32_t deviceId) = 0; |
| virtual std::optional<RawBatteryInfo> getRawBatteryInfo(int32_t deviceId, |
| int32_t BatteryId) = 0; |
| |
| // Raw lights are sysfs led light nodes we found from the EventHub device sysfs node, |
| // containing the raw info of the sysfs node structure. |
| virtual const std::vector<int32_t> getRawLightIds(int32_t deviceId) = 0; |
| virtual std::optional<RawLightInfo> getRawLightInfo(int32_t deviceId, int32_t lightId) = 0; |
| virtual std::optional<int32_t> getLightBrightness(int32_t deviceId, int32_t lightId) = 0; |
| virtual void setLightBrightness(int32_t deviceId, int32_t lightId, int32_t brightness) = 0; |
| virtual std::optional<std::unordered_map<LightColor, int32_t>> getLightIntensities( |
| int32_t deviceId, int32_t lightId) = 0; |
| virtual void setLightIntensities(int32_t deviceId, int32_t lightId, |
| std::unordered_map<LightColor, int32_t> intensities) = 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; |
| virtual status_t getAbsoluteAxisValue(int32_t deviceId, int32_t axis, |
| int32_t* outValue) const = 0; |
| virtual int32_t getKeyCodeForKeyLocation(int32_t deviceId, int32_t locationKeyCode) const = 0; |
| |
| /* |
| * Examine key input devices for specific framework keycode support |
| */ |
| virtual bool markSupportedKeyCodes(int32_t deviceId, size_t numCodes, const int32_t* keyCodes, |
| uint8_t* outFlags) const = 0; |
| |
| virtual bool hasScanCode(int32_t deviceId, int32_t scanCode) const = 0; |
| virtual bool hasKeyCode(int32_t deviceId, int32_t keyCode) const = 0; |
| |
| /* LED related functions expect Android LED constants, not scan codes or HID usages */ |
| virtual bool hasLed(int32_t deviceId, int32_t led) const = 0; |
| virtual void setLedState(int32_t deviceId, int32_t led, bool on) = 0; |
| |
| virtual void getVirtualKeyDefinitions( |
| int32_t deviceId, std::vector<VirtualKeyDefinition>& outVirtualKeys) const = 0; |
| |
| virtual const std::shared_ptr<KeyCharacterMap> getKeyCharacterMap(int32_t deviceId) const = 0; |
| virtual bool setKeyboardLayoutOverlay(int32_t deviceId, |
| std::shared_ptr<KeyCharacterMap> map) = 0; |
| |
| /* Control the vibrator. */ |
| virtual void vibrate(int32_t deviceId, const VibrationElement& effect) = 0; |
| virtual void cancelVibrate(int32_t deviceId) = 0; |
| virtual std::vector<int32_t> getVibratorIds(int32_t deviceId) = 0; |
| |
| /* Query battery level. */ |
| virtual std::optional<int32_t> getBatteryCapacity(int32_t deviceId, |
| int32_t batteryId) const = 0; |
| |
| /* Query battery status. */ |
| virtual std::optional<int32_t> getBatteryStatus(int32_t deviceId, int32_t batteryId) const = 0; |
| |
| /* Requests the EventHub to reopen all input devices on the next call to getEvents(). */ |
| virtual void requestReopenDevices() = 0; |
| |
| /* Wakes up getEvents() if it is blocked on a read. */ |
| virtual void wake() = 0; |
| |
| /* Dump EventHub state to a string. */ |
| virtual void dump(std::string& dump) = 0; |
| |
| /* Called by the heatbeat to ensures that the reader has not deadlocked. */ |
| virtual void monitor() = 0; |
| |
| /* Return true if the device is enabled. */ |
| virtual bool isDeviceEnabled(int32_t deviceId) = 0; |
| |
| /* Enable an input device */ |
| virtual status_t enableDevice(int32_t deviceId) = 0; |
| |
| /* Disable an input device. Closes file descriptor to that device. */ |
| virtual status_t disableDevice(int32_t deviceId) = 0; |
| }; |
| |
| template <std::size_t BITS> |
| class BitArray { |
| /* Array element type and vector of element type. */ |
| using Element = std::uint32_t; |
| /* Number of bits in each BitArray element. */ |
| static constexpr size_t WIDTH = sizeof(Element) * CHAR_BIT; |
| /* Number of elements to represent a bit array of the specified size of bits. */ |
| static constexpr size_t COUNT = (BITS + WIDTH - 1) / WIDTH; |
| |
| public: |
| /* BUFFER type declaration for BitArray */ |
| using Buffer = std::array<Element, COUNT>; |
| /* To tell if a bit is set in array, it selects an element from the array, and test |
| * if the relevant bit set. |
| * Note the parameter "bit" is an index to the bit, 0 <= bit < BITS. |
| */ |
| inline bool test(size_t bit) const { |
| return (bit < BITS) ? mData[bit / WIDTH].test(bit % WIDTH) : false; |
| } |
| /* Returns total number of bytes needed for the array */ |
| inline size_t bytes() { return (BITS + CHAR_BIT - 1) / CHAR_BIT; } |
| /* Returns true if array contains any non-zero bit from the range defined by start and end |
| * bit index [startIndex, endIndex). |
| */ |
| bool any(size_t startIndex, size_t endIndex) { |
| if (startIndex >= endIndex || startIndex > BITS || endIndex > BITS + 1) { |
| ALOGE("Invalid start/end index. start = %zu, end = %zu, total bits = %zu", startIndex, |
| endIndex, BITS); |
| return false; |
| } |
| size_t se = startIndex / WIDTH; // Start of element |
| size_t ee = endIndex / WIDTH; // End of element |
| size_t si = startIndex % WIDTH; // Start index in start element |
| size_t ei = endIndex % WIDTH; // End index in end element |
| // Need to check first unaligned bitset for any non zero bit |
| if (si > 0) { |
| size_t nBits = se == ee ? ei - si : WIDTH - si; |
| // Generate the mask of interested bit range |
| Element mask = ((1 << nBits) - 1) << si; |
| if (mData[se++].to_ulong() & mask) { |
| return true; |
| } |
| } |
| // Check whole bitset for any bit set |
| for (; se < ee; se++) { |
| if (mData[se].any()) { |
| return true; |
| } |
| } |
| // Need to check last unaligned bitset for any non zero bit |
| if (ei > 0 && se <= ee) { |
| // Generate the mask of interested bit range |
| Element mask = (1 << ei) - 1; |
| if (mData[se].to_ulong() & mask) { |
| return true; |
| } |
| } |
| return false; |
| } |
| /* Load bit array values from buffer */ |
| void loadFromBuffer(const Buffer& buffer) { |
| for (size_t i = 0; i < COUNT; i++) { |
| mData[i] = std::bitset<WIDTH>(buffer[i]); |
| } |
| } |
| |
| private: |
| std::array<std::bitset<WIDTH>, COUNT> mData; |
| }; |
| |
| class EventHub : public EventHubInterface { |
| public: |
| EventHub(); |
| |
| Flags<InputDeviceClass> getDeviceClasses(int32_t deviceId) const override final; |
| |
| InputDeviceIdentifier getDeviceIdentifier(int32_t deviceId) const override final; |
| |
| int32_t getDeviceControllerNumber(int32_t deviceId) const override final; |
| |
| void getConfiguration(int32_t deviceId, PropertyMap* outConfiguration) const override final; |
| |
| status_t getAbsoluteAxisInfo(int32_t deviceId, int axis, |
| RawAbsoluteAxisInfo* outAxisInfo) const override final; |
| |
| bool hasRelativeAxis(int32_t deviceId, int axis) const override final; |
| |
| bool hasInputProperty(int32_t deviceId, int property) const override final; |
| |
| 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 final; |
| |
| status_t mapAxis(int32_t deviceId, int32_t scanCode, |
| AxisInfo* outAxisInfo) const override final; |
| |
| base::Result<std::pair<InputDeviceSensorType, int32_t>> mapSensor( |
| int32_t deviceId, int32_t absCode) override final; |
| |
| const std::vector<int32_t> getRawBatteryIds(int32_t deviceId) override final; |
| std::optional<RawBatteryInfo> getRawBatteryInfo(int32_t deviceId, |
| int32_t BatteryId) override final; |
| |
| const std::vector<int32_t> getRawLightIds(int32_t deviceId) override final; |
| |
| std::optional<RawLightInfo> getRawLightInfo(int32_t deviceId, int32_t lightId) override final; |
| |
| std::optional<int32_t> getLightBrightness(int32_t deviceId, int32_t lightId) override final; |
| void setLightBrightness(int32_t deviceId, int32_t lightId, int32_t brightness) override final; |
| std::optional<std::unordered_map<LightColor, int32_t>> getLightIntensities( |
| int32_t deviceId, int32_t lightId) override final; |
| void setLightIntensities(int32_t deviceId, int32_t lightId, |
| std::unordered_map<LightColor, int32_t> intensities) override final; |
| |
| void setExcludedDevices(const std::vector<std::string>& devices) override final; |
| |
| int32_t getScanCodeState(int32_t deviceId, int32_t scanCode) const override final; |
| int32_t getKeyCodeState(int32_t deviceId, int32_t keyCode) const override final; |
| int32_t getSwitchState(int32_t deviceId, int32_t sw) const override final; |
| int32_t getKeyCodeForKeyLocation(int32_t deviceId, |
| int32_t locationKeyCode) const override final; |
| status_t getAbsoluteAxisValue(int32_t deviceId, int32_t axis, |
| int32_t* outValue) const override final; |
| |
| bool markSupportedKeyCodes(int32_t deviceId, size_t numCodes, const int32_t* keyCodes, |
| uint8_t* outFlags) const override final; |
| |
| size_t getEvents(int timeoutMillis, RawEvent* buffer, size_t bufferSize) override final; |
| std::vector<TouchVideoFrame> getVideoFrames(int32_t deviceId) override final; |
| |
| bool hasScanCode(int32_t deviceId, int32_t scanCode) const override final; |
| bool hasKeyCode(int32_t deviceId, int32_t keyCode) const override final; |
| bool hasLed(int32_t deviceId, int32_t led) const override final; |
| void setLedState(int32_t deviceId, int32_t led, bool on) override final; |
| |
| void getVirtualKeyDefinitions( |
| int32_t deviceId, |
| std::vector<VirtualKeyDefinition>& outVirtualKeys) const override final; |
| |
| const std::shared_ptr<KeyCharacterMap> getKeyCharacterMap( |
| int32_t deviceId) const override final; |
| bool setKeyboardLayoutOverlay(int32_t deviceId, |
| std::shared_ptr<KeyCharacterMap> map) override final; |
| |
| void vibrate(int32_t deviceId, const VibrationElement& effect) override final; |
| void cancelVibrate(int32_t deviceId) override final; |
| std::vector<int32_t> getVibratorIds(int32_t deviceId) override final; |
| |
| void requestReopenDevices() override final; |
| |
| void wake() override final; |
| |
| void dump(std::string& dump) override final; |
| |
| void monitor() override final; |
| |
| std::optional<int32_t> getBatteryCapacity(int32_t deviceId, |
| int32_t batteryId) const override final; |
| |
| std::optional<int32_t> getBatteryStatus(int32_t deviceId, |
| int32_t batteryId) const override final; |
| |
| bool isDeviceEnabled(int32_t deviceId) override final; |
| |
| status_t enableDevice(int32_t deviceId) override final; |
| |
| status_t disableDevice(int32_t deviceId) override final; |
| |
| ~EventHub() override; |
| |
| private: |
| struct AssociatedDevice { |
| // The device descriptor from evdev device the misc device associated with. |
| std::string descriptor; |
| // The sysfs root path of the misc device. |
| std::filesystem::path sysfsRootPath; |
| |
| int32_t nextBatteryId; |
| int32_t nextLightId; |
| std::unordered_map<int32_t, RawBatteryInfo> batteryInfos; |
| std::unordered_map<int32_t, RawLightInfo> lightInfos; |
| explicit AssociatedDevice(std::filesystem::path sysfsRootPath) |
| : sysfsRootPath(sysfsRootPath), nextBatteryId(0), nextLightId(0) {} |
| bool configureBatteryLocked(); |
| bool configureLightsLocked(); |
| }; |
| |
| struct Device { |
| int fd; // may be -1 if device is closed |
| const int32_t id; |
| const std::string path; |
| const InputDeviceIdentifier identifier; |
| |
| std::unique_ptr<TouchVideoDevice> videoDevice; |
| |
| Flags<InputDeviceClass> classes; |
| |
| BitArray<KEY_MAX> keyBitmask; |
| BitArray<KEY_MAX> keyState; |
| BitArray<ABS_MAX> absBitmask; |
| BitArray<REL_MAX> relBitmask; |
| BitArray<SW_MAX> swBitmask; |
| BitArray<SW_MAX> swState; |
| BitArray<LED_MAX> ledBitmask; |
| BitArray<FF_MAX> ffBitmask; |
| BitArray<INPUT_PROP_MAX> propBitmask; |
| BitArray<MSC_MAX> mscBitmask; |
| |
| std::string configurationFile; |
| std::unique_ptr<PropertyMap> configuration; |
| std::unique_ptr<VirtualKeyMap> virtualKeyMap; |
| KeyMap keyMap; |
| |
| bool ffEffectPlaying; |
| int16_t ffEffectId; // initially -1 |
| |
| // A shared_ptr of a device associated with the input device. |
| // The input devices with same descriptor has the same associated device. |
| std::shared_ptr<AssociatedDevice> associatedDevice; |
| |
| int32_t controllerNumber; |
| |
| Device(int fd, int32_t id, const std::string& path, |
| const InputDeviceIdentifier& identifier); |
| ~Device(); |
| |
| void close(); |
| |
| bool enabled; // initially true |
| status_t enable(); |
| status_t disable(); |
| bool hasValidFd() const; |
| const bool isVirtual; // set if fd < 0 is passed to constructor |
| |
| const std::shared_ptr<KeyCharacterMap> getKeyCharacterMap() const; |
| |
| template <std::size_t N> |
| status_t readDeviceBitMask(unsigned long ioctlCode, BitArray<N>& bitArray); |
| |
| void configureFd(); |
| bool hasKeycodeLocked(int keycode) const; |
| void loadConfigurationLocked(); |
| bool loadVirtualKeyMapLocked(); |
| status_t loadKeyMapLocked(); |
| bool isExternalDeviceLocked(); |
| bool deviceHasMicLocked(); |
| void setLedForControllerLocked(); |
| status_t mapLed(int32_t led, int32_t* outScanCode) const; |
| void setLedStateLocked(int32_t led, bool on); |
| }; |
| |
| /** |
| * Create a new device for the provided path. |
| */ |
| void openDeviceLocked(const std::string& devicePath) REQUIRES(mLock); |
| void openVideoDeviceLocked(const std::string& devicePath) REQUIRES(mLock); |
| /** |
| * Try to associate a video device with an input device. If the association succeeds, |
| * the videoDevice is moved into the input device. 'videoDevice' will become null if this |
| * happens. |
| * Return true if the association succeeds. |
| * Return false otherwise. |
| */ |
| bool tryAddVideoDeviceLocked(Device& device, std::unique_ptr<TouchVideoDevice>& videoDevice) |
| REQUIRES(mLock); |
| void createVirtualKeyboardLocked() REQUIRES(mLock); |
| void addDeviceLocked(std::unique_ptr<Device> device) REQUIRES(mLock); |
| void assignDescriptorLocked(InputDeviceIdentifier& identifier) REQUIRES(mLock); |
| |
| void closeDeviceByPathLocked(const std::string& devicePath) REQUIRES(mLock); |
| void closeVideoDeviceByPathLocked(const std::string& devicePath) REQUIRES(mLock); |
| void closeDeviceLocked(Device& device) REQUIRES(mLock); |
| void closeAllDevicesLocked() REQUIRES(mLock); |
| |
| status_t registerFdForEpoll(int fd); |
| status_t unregisterFdFromEpoll(int fd); |
| status_t registerDeviceForEpollLocked(Device& device) REQUIRES(mLock); |
| void registerVideoDeviceForEpollLocked(const TouchVideoDevice& videoDevice) REQUIRES(mLock); |
| status_t unregisterDeviceFromEpollLocked(Device& device) REQUIRES(mLock); |
| void unregisterVideoDeviceFromEpollLocked(const TouchVideoDevice& videoDevice) REQUIRES(mLock); |
| |
| status_t scanDirLocked(const std::string& dirname) REQUIRES(mLock); |
| status_t scanVideoDirLocked(const std::string& dirname) REQUIRES(mLock); |
| void scanDevicesLocked() REQUIRES(mLock); |
| status_t readNotifyLocked() REQUIRES(mLock); |
| |
| Device* getDeviceByDescriptorLocked(const std::string& descriptor) const REQUIRES(mLock); |
| Device* getDeviceLocked(int32_t deviceId) const REQUIRES(mLock); |
| Device* getDeviceByPathLocked(const std::string& devicePath) const REQUIRES(mLock); |
| /** |
| * Look through all available fd's (both for input devices and for video devices), |
| * and return the device pointer. |
| */ |
| Device* getDeviceByFdLocked(int fd) const REQUIRES(mLock); |
| |
| int32_t getNextControllerNumberLocked(const std::string& name) REQUIRES(mLock); |
| void releaseControllerNumberLocked(int32_t num) REQUIRES(mLock); |
| void reportDeviceAddedForStatisticsLocked(const InputDeviceIdentifier& identifier, |
| Flags<InputDeviceClass> classes) REQUIRES(mLock); |
| |
| const std::unordered_map<int32_t, RawBatteryInfo>& getBatteryInfoLocked(int32_t deviceId) const |
| REQUIRES(mLock); |
| |
| const std::unordered_map<int32_t, RawLightInfo>& getLightInfoLocked(int32_t deviceId) const |
| REQUIRES(mLock); |
| |
| void addDeviceInputInotify(); |
| void addDeviceInotify(); |
| |
| // Protect all internal state. |
| mutable std::mutex mLock; |
| |
| // The actual id of the built-in keyboard, or NO_BUILT_IN_KEYBOARD if none. |
| // EventHub remaps the built-in keyboard to id 0 externally as required by the API. |
| enum { |
| // Must not conflict with any other assigned device ids, including |
| // the virtual keyboard id (-1). |
| NO_BUILT_IN_KEYBOARD = -2, |
| }; |
| int32_t mBuiltInKeyboardId; |
| |
| int32_t mNextDeviceId; |
| |
| BitSet32 mControllerNumbers; |
| |
| std::unordered_map<int32_t, std::unique_ptr<Device>> mDevices; |
| /** |
| * Video devices that report touchscreen heatmap, but have not (yet) been paired |
| * with a specific input device. Video device discovery is independent from input device |
| * discovery, so the two types of devices could be found in any order. |
| * Ideally, video devices in this queue do not have an open fd, or at least aren't |
| * actively streaming. |
| */ |
| std::vector<std::unique_ptr<TouchVideoDevice>> mUnattachedVideoDevices; |
| |
| std::vector<std::unique_ptr<Device>> mOpeningDevices; |
| std::vector<std::unique_ptr<Device>> mClosingDevices; |
| |
| bool mNeedToSendFinishedDeviceScan; |
| bool mNeedToReopenDevices; |
| bool mNeedToScanDevices; |
| std::vector<std::string> mExcludedDevices; |
| |
| int mEpollFd; |
| int mINotifyFd; |
| int mWakeReadPipeFd; |
| int mWakeWritePipeFd; |
| |
| int mDeviceInputWd; |
| int mDeviceWd = -1; |
| |
| // Maximum number of signalled FDs to handle at a time. |
| static const int EPOLL_MAX_EVENTS = 16; |
| |
| // The array of pending epoll events and the index of the next event to be handled. |
| struct epoll_event mPendingEventItems[EPOLL_MAX_EVENTS]; |
| size_t mPendingEventCount; |
| size_t mPendingEventIndex; |
| bool mPendingINotify; |
| }; |
| |
| }; // namespace android |
| |
| #endif // _RUNTIME_EVENT_HUB_H |
