212 lines
11 KiB
C++
212 lines
11 KiB
C++
/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <aidl/android/hardware/vibrator/BnVibrator.h>
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#include <android-base/unique_fd.h>
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#include <linux/input.h>
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#include <tinyalsa/asoundlib.h>
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#include <array>
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#include <fstream>
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#include <future>
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namespace aidl {
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namespace android {
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namespace hardware {
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namespace vibrator {
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class Vibrator : public BnVibrator {
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public:
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// APIs for interfacing with the kernel driver.
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class HwApi {
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public:
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virtual ~HwApi() = default;
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// Stores the LRA resonant frequency to be used for PWLE playback
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// and click compensation.
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virtual bool setF0(std::string value) = 0;
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// Stores the frequency offset for long vibrations.
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virtual bool setF0Offset(uint32_t value) = 0;
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// Stores the LRA series resistance to be used for click
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// compensation.
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virtual bool setRedc(std::string value) = 0;
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// Stores the LRA Q factor to be used for Q-dependent waveform
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// selection.
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virtual bool setQ(std::string value) = 0;
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// Reports the number of effect waveforms loaded in firmware.
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virtual bool getEffectCount(uint32_t *value) = 0;
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// Blocks until timeout or vibrator reaches desired state
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// (2 = ASP enabled, 1 = haptic enabled, 0 = disabled).
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virtual bool pollVibeState(uint32_t value, int32_t timeoutMs = -1) = 0;
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// Reports whether getOwtFreeSpace() is supported.
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virtual bool hasOwtFreeSpace() = 0;
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// Reports the available OWT bytes.
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virtual bool getOwtFreeSpace(uint32_t *value) = 0;
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// Enables/Disables F0 compensation enable status
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virtual bool setF0CompEnable(bool value) = 0;
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// Enables/Disables Redc compensation enable status
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virtual bool setRedcCompEnable(bool value) = 0;
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// Stores the minumun delay time between playback and stop effects.
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virtual bool setMinOnOffInterval(uint32_t value) = 0;
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// Indicates the number of 0.125-dB steps of attenuation to apply to
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// waveforms triggered in response to vibration calls from the
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// Android vibrator HAL.
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virtual bool setFFGain(int fd, uint16_t value) = 0;
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// Create/modify custom effects for all physical waveforms.
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virtual bool setFFEffect(int fd, struct ff_effect *effect, uint16_t timeoutMs) = 0;
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// Activates/deactivates the effect index after setFFGain() and setFFEffect().
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virtual bool setFFPlay(int fd, int8_t index, bool value) = 0;
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// Get the Alsa device for the audio coupled haptics effect
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virtual bool getHapticAlsaDevice(int *card, int *device) = 0;
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// Set haptics PCM amplifier before triggering audio haptics feature
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virtual bool setHapticPcmAmp(struct pcm **haptic_pcm, bool enable, int card,
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int device) = 0;
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// Set OWT waveform for compose or compose PWLE request
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virtual bool uploadOwtEffect(int fd, uint8_t *owtData, uint32_t numBytes,
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struct ff_effect *effect, uint32_t *outEffectIndex,
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int *status) = 0;
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// Erase OWT waveform
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virtual bool eraseOwtEffect(int fd, int8_t effectIndex, std::vector<ff_effect> *effect) = 0;
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// Emit diagnostic information to the given file.
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virtual void debug(int fd) = 0;
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};
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// APIs for obtaining calibration/configuration data from persistent memory.
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class HwCal {
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public:
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virtual ~HwCal() = default;
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// Obtain the calibration version
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virtual bool getVersion(uint32_t *value) = 0;
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// Obtains the LRA resonant frequency to be used for PWLE playback
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// and click compensation.
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virtual bool getF0(std::string *value) = 0;
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// Obtains the LRA series resistance to be used for click
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// compensation.
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virtual bool getRedc(std::string *value) = 0;
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// Obtains the LRA Q factor to be used for Q-dependent waveform
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// selection.
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virtual bool getQ(std::string *value) = 0;
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// Obtains frequency shift for long vibrations.
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virtual bool getLongFrequencyShift(int32_t *value) = 0;
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// Obtains the v0/v1(min/max) voltage levels to be applied for
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// tick/click/long in units of 1%.
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virtual bool getTickVolLevels(std::array<uint32_t, 2> *value) = 0;
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virtual bool getClickVolLevels(std::array<uint32_t, 2> *value) = 0;
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virtual bool getLongVolLevels(std::array<uint32_t, 2> *value) = 0;
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// Checks if the chirp feature is enabled.
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virtual bool isChirpEnabled() = 0;
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// Obtains the supported primitive effects.
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virtual bool getSupportedPrimitives(uint32_t *value) = 0;
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// Checks if the f0 compensation feature needs to be enabled.
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virtual bool isF0CompEnabled() = 0;
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// Checks if the redc compensation feature needs to be enabled.
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virtual bool isRedcCompEnabled() = 0;
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// Emit diagnostic information to the given file.
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virtual void debug(int fd) = 0;
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};
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public:
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Vibrator(std::unique_ptr<HwApi> hwapi, std::unique_ptr<HwCal> hwcal);
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ndk::ScopedAStatus getCapabilities(int32_t *_aidl_return) override;
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ndk::ScopedAStatus off() override;
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ndk::ScopedAStatus on(int32_t timeoutMs,
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const std::shared_ptr<IVibratorCallback> &callback) override;
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ndk::ScopedAStatus perform(Effect effect, EffectStrength strength,
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const std::shared_ptr<IVibratorCallback> &callback,
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int32_t *_aidl_return) override;
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ndk::ScopedAStatus getSupportedEffects(std::vector<Effect> *_aidl_return) override;
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ndk::ScopedAStatus setAmplitude(float amplitude) override;
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ndk::ScopedAStatus setExternalControl(bool enabled) override;
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ndk::ScopedAStatus getCompositionDelayMax(int32_t *maxDelayMs);
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ndk::ScopedAStatus getCompositionSizeMax(int32_t *maxSize);
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ndk::ScopedAStatus getSupportedPrimitives(std::vector<CompositePrimitive> *supported) override;
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ndk::ScopedAStatus getPrimitiveDuration(CompositePrimitive primitive,
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int32_t *durationMs) override;
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ndk::ScopedAStatus compose(const std::vector<CompositeEffect> &composite,
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const std::shared_ptr<IVibratorCallback> &callback) override;
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ndk::ScopedAStatus getSupportedAlwaysOnEffects(std::vector<Effect> *_aidl_return) override;
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ndk::ScopedAStatus alwaysOnEnable(int32_t id, Effect effect, EffectStrength strength) override;
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ndk::ScopedAStatus alwaysOnDisable(int32_t id) override;
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ndk::ScopedAStatus getResonantFrequency(float *resonantFreqHz) override;
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ndk::ScopedAStatus getQFactor(float *qFactor) override;
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ndk::ScopedAStatus getFrequencyResolution(float *freqResolutionHz) override;
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ndk::ScopedAStatus getFrequencyMinimum(float *freqMinimumHz) override;
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ndk::ScopedAStatus getBandwidthAmplitudeMap(std::vector<float> *_aidl_return) override;
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ndk::ScopedAStatus getPwlePrimitiveDurationMax(int32_t *durationMs) override;
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ndk::ScopedAStatus getPwleCompositionSizeMax(int32_t *maxSize) override;
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ndk::ScopedAStatus getSupportedBraking(std::vector<Braking> *supported) override;
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ndk::ScopedAStatus composePwle(const std::vector<PrimitivePwle> &composite,
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const std::shared_ptr<IVibratorCallback> &callback) override;
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binder_status_t dump(int fd, const char **args, uint32_t numArgs) override;
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private:
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ndk::ScopedAStatus on(uint32_t timeoutMs, uint32_t effectIndex, struct dspmem_chunk *ch,
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const std::shared_ptr<IVibratorCallback> &callback);
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// set 'amplitude' based on an arbitrary scale determined by 'maximum'
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ndk::ScopedAStatus setEffectAmplitude(float amplitude, float maximum);
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ndk::ScopedAStatus setGlobalAmplitude(bool set);
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// 'simple' effects are those precompiled and loaded into the controller
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ndk::ScopedAStatus getSimpleDetails(Effect effect, EffectStrength strength,
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uint32_t *outEffectIndex, uint32_t *outTimeMs,
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uint32_t *outVolLevel);
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// 'compound' effects are those composed by stringing multiple 'simple' effects
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ndk::ScopedAStatus getCompoundDetails(Effect effect, EffectStrength strength,
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uint32_t *outTimeMs, struct dspmem_chunk *outCh);
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ndk::ScopedAStatus getPrimitiveDetails(CompositePrimitive primitive, uint32_t *outEffectIndex);
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ndk::ScopedAStatus performEffect(Effect effect, EffectStrength strength,
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const std::shared_ptr<IVibratorCallback> &callback,
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int32_t *outTimeMs);
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ndk::ScopedAStatus performEffect(uint32_t effectIndex, uint32_t volLevel,
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struct dspmem_chunk *ch,
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const std::shared_ptr<IVibratorCallback> &callback);
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ndk::ScopedAStatus setPwle(const std::string &pwleQueue);
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bool isUnderExternalControl();
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void waitForComplete(std::shared_ptr<IVibratorCallback> &&callback);
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uint32_t intensityToVolLevel(float intensity, uint32_t effectIndex);
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bool findHapticAlsaDevice(int *card, int *device);
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bool hasHapticAlsaDevice();
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bool enableHapticPcmAmp(struct pcm **haptic_pcm, bool enable, int card, int device);
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std::unique_ptr<HwApi> mHwApi;
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std::unique_ptr<HwCal> mHwCal;
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uint32_t mF0Offset;
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std::array<uint32_t, 2> mTickEffectVol;
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std::array<uint32_t, 2> mClickEffectVol;
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std::array<uint32_t, 2> mLongEffectVol;
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std::vector<ff_effect> mFfEffects;
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std::vector<uint32_t> mEffectDurations;
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std::future<void> mAsyncHandle;
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::android::base::unique_fd mInputFd;
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int8_t mActiveId{-1};
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struct pcm *mHapticPcm;
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int mCard;
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int mDevice;
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bool mHasHapticAlsaDevice{false};
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bool mIsUnderExternalControl;
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float mLongEffectScale = 1.0;
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bool mIsChirpEnabled;
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uint32_t mSupportedPrimitivesBits = 0x0;
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std::vector<CompositePrimitive> mSupportedPrimitives;
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bool mConfigHapticAlsaDeviceDone{false};
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};
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} // namespace vibrator
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} // namespace hardware
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} // namespace android
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} // namespace aidl
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