diff options
Diffstat (limited to 'include/ui/EventHub.h')
| -rw-r--r-- | include/ui/EventHub.h | 76 |
1 files changed, 47 insertions, 29 deletions
diff --git a/include/ui/EventHub.h b/include/ui/EventHub.h index 5be17d3..dab35b3 100644 --- a/include/ui/EventHub.h +++ b/include/ui/EventHub.h @@ -60,6 +60,31 @@ namespace android { class KeyLayoutMap; /* + * A raw event as retrieved from the EventHub. + */ +struct RawEvent { + nsecs_t when; + int32_t deviceId; + int32_t type; + int32_t scanCode; + int32_t keyCode; + int32_t value; + uint32_t flags; +}; + +/* 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 + + inline int32_t getRange() { return maxValue - minValue; } +}; + +/* * Input device classes. */ enum { @@ -82,7 +107,10 @@ enum { INPUT_DEVICE_CLASS_DPAD = 0x00000020, /* The input device is a gamepad (implies keyboard). */ - INPUT_DEVICE_CLASS_GAMEPAD = 0x00000040 + INPUT_DEVICE_CLASS_GAMEPAD = 0x00000040, + + /* The input device has switches. */ + INPUT_DEVICE_CLASS_SWITCH = 0x00000080, }; /* @@ -114,8 +142,8 @@ public: virtual String8 getDeviceName(int32_t deviceId) const = 0; - virtual int getAbsoluteInfo(int32_t deviceId, int axis, int *outMinValue, - int* outMaxValue, int* outFlat, int* outFuzz) const = 0; + virtual status_t getAbsoluteAxisInfo(int32_t deviceId, int axis, + RawAbsoluteAxisInfo* outAxisInfo) const = 0; virtual status_t scancodeToKeycode(int32_t deviceId, int scancode, int32_t* outKeycode, uint32_t* outFlags) const = 0; @@ -131,26 +159,19 @@ public: * 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). */ - virtual bool getEvent(int32_t* outDeviceId, int32_t* outType, - int32_t* outScancode, int32_t* outKeycode, uint32_t *outFlags, - int32_t* outValue, nsecs_t* outWhen) = 0; + virtual bool getEvent(RawEvent* outEvent) = 0; /* * Query current input state. - * deviceId may be -1 to search for the device automatically, filtered by class. - * deviceClasses may be -1 to ignore device class while searching. */ - virtual int32_t getScanCodeState(int32_t deviceId, int32_t deviceClasses, - int32_t scanCode) const = 0; - virtual int32_t getKeyCodeState(int32_t deviceId, int32_t deviceClasses, - int32_t keyCode) const = 0; - virtual int32_t getSwitchState(int32_t deviceId, int32_t deviceClasses, - int32_t sw) const = 0; + 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; /* * Examine key input devices for specific framework keycode support */ - virtual bool hasKeys(size_t numCodes, const int32_t* keyCodes, + virtual bool markSupportedKeyCodes(int32_t deviceId, size_t numCodes, const int32_t* keyCodes, uint8_t* outFlags) const = 0; }; @@ -165,33 +186,28 @@ public: virtual String8 getDeviceName(int32_t deviceId) const; - virtual int getAbsoluteInfo(int32_t deviceId, int axis, int *outMinValue, - int* outMaxValue, int* outFlat, int* outFuzz) const; - + virtual status_t getAbsoluteAxisInfo(int32_t deviceId, int axis, + RawAbsoluteAxisInfo* outAxisInfo) const; + virtual status_t scancodeToKeycode(int32_t deviceId, int scancode, int32_t* outKeycode, uint32_t* outFlags) const; virtual void addExcludedDevice(const char* deviceName); - virtual int32_t getScanCodeState(int32_t deviceId, int32_t deviceClasses, - int32_t scanCode) const; - virtual int32_t getKeyCodeState(int32_t deviceId, int32_t deviceClasses, - int32_t keyCode) const; - virtual int32_t getSwitchState(int32_t deviceId, int32_t deviceClasses, - int32_t sw) const; + virtual int32_t getScanCodeState(int32_t deviceId, int32_t scanCode) const; + virtual int32_t getKeyCodeState(int32_t deviceId, int32_t keyCode) const; + virtual int32_t getSwitchState(int32_t deviceId, int32_t sw) const; - virtual bool hasKeys(size_t numCodes, const int32_t* keyCodes, uint8_t* outFlags) const; + virtual bool markSupportedKeyCodes(int32_t deviceId, size_t numCodes, + const int32_t* keyCodes, uint8_t* outFlags) const; - virtual bool getEvent(int32_t* outDeviceId, int32_t* outType, - int32_t* outScancode, int32_t* outKeycode, uint32_t *outFlags, - int32_t* outValue, nsecs_t* outWhen); + virtual bool getEvent(RawEvent* outEvent); protected: virtual ~EventHub(); private: bool openPlatformInput(void); - int32_t convertDeviceKey_TI_P2(int code); int open_device(const char *device); int close_device(const char *device); @@ -220,6 +236,8 @@ private: int32_t getScanCodeStateLocked(device_t* device, int32_t scanCode) const; int32_t getKeyCodeStateLocked(device_t* device, int32_t keyCode) const; int32_t getSwitchStateLocked(device_t* device, int32_t sw) const; + bool markSupportedKeyCodesLocked(device_t* device, size_t numCodes, + const int32_t* keyCodes, uint8_t* outFlags) const; // Protect all internal state. mutable Mutex mLock; |