1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <memory.h>
18
19#define LOG_TAG "Equalizer_HAL"
20#include <android/log.h>
21
22#include "EqualizerEffect.h"
23
24namespace android {
25namespace hardware {
26namespace audio {
27namespace effect {
28namespace V2_0 {
29namespace implementation {
30
31EqualizerEffect::EqualizerEffect(effect_handle_t handle)
32        : mEffect(new Effect(handle)) {
33}
34
35EqualizerEffect::~EqualizerEffect() {}
36
37void EqualizerEffect::propertiesFromHal(
38        const t_equalizer_settings& halProperties,
39        IEqualizerEffect::AllProperties* properties) {
40    properties->curPreset = halProperties.curPreset;
41    // t_equalizer_settings incorrectly defines bandLevels as uint16_t,
42    // whereas the actual type of values used by effects is int16_t.
43    const int16_t* signedBandLevels =
44            reinterpret_cast<const int16_t*>(&halProperties.bandLevels[0]);
45    properties->bandLevels.setToExternal(
46            const_cast<int16_t*>(signedBandLevels), halProperties.numBands);
47}
48
49std::vector<uint8_t> EqualizerEffect::propertiesToHal(
50        const IEqualizerEffect::AllProperties& properties,
51        t_equalizer_settings** halProperties) {
52    size_t bandsSize = properties.bandLevels.size() * sizeof(uint16_t);
53    std::vector<uint8_t> halBuffer(sizeof(t_equalizer_settings) + bandsSize, 0);
54    *halProperties = reinterpret_cast<t_equalizer_settings*>(&halBuffer[0]);
55    (*halProperties)->curPreset = properties.curPreset;
56    (*halProperties)->numBands = properties.bandLevels.size();
57    memcpy((*halProperties)->bandLevels, &properties.bandLevels[0], bandsSize);
58    return halBuffer;
59}
60
61// Methods from ::android::hardware::audio::effect::V2_0::IEffect follow.
62Return<Result> EqualizerEffect::init() {
63    return mEffect->init();
64}
65
66Return<Result> EqualizerEffect::setConfig(
67        const EffectConfig& config,
68        const sp<IEffectBufferProviderCallback>& inputBufferProvider,
69        const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
70    return mEffect->setConfig(config, inputBufferProvider, outputBufferProvider);
71}
72
73Return<Result> EqualizerEffect::reset() {
74    return mEffect->reset();
75}
76
77Return<Result> EqualizerEffect::enable() {
78    return mEffect->enable();
79}
80
81Return<Result> EqualizerEffect::disable() {
82    return mEffect->disable();
83}
84
85Return<Result> EqualizerEffect::setDevice(AudioDevice device) {
86    return mEffect->setDevice(device);
87}
88
89Return<void> EqualizerEffect::setAndGetVolume(
90        const hidl_vec<uint32_t>& volumes, setAndGetVolume_cb _hidl_cb) {
91    return mEffect->setAndGetVolume(volumes, _hidl_cb);
92}
93
94Return<Result> EqualizerEffect::volumeChangeNotification(
95        const hidl_vec<uint32_t>& volumes) {
96    return mEffect->volumeChangeNotification(volumes);
97}
98
99Return<Result> EqualizerEffect::setAudioMode(AudioMode mode) {
100    return mEffect->setAudioMode(mode);
101}
102
103Return<Result> EqualizerEffect::setConfigReverse(
104        const EffectConfig& config,
105        const sp<IEffectBufferProviderCallback>& inputBufferProvider,
106        const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
107    return mEffect->setConfigReverse(config, inputBufferProvider, outputBufferProvider);
108}
109
110Return<Result> EqualizerEffect::setInputDevice(AudioDevice device) {
111    return mEffect->setInputDevice(device);
112}
113
114Return<void> EqualizerEffect::getConfig(getConfig_cb _hidl_cb) {
115    return mEffect->getConfig(_hidl_cb);
116}
117
118Return<void> EqualizerEffect::getConfigReverse(getConfigReverse_cb _hidl_cb) {
119    return mEffect->getConfigReverse(_hidl_cb);
120}
121
122Return<void> EqualizerEffect::getSupportedAuxChannelsConfigs(
123        uint32_t maxConfigs, getSupportedAuxChannelsConfigs_cb _hidl_cb) {
124    return mEffect->getSupportedAuxChannelsConfigs(maxConfigs, _hidl_cb);
125}
126
127Return<void> EqualizerEffect::getAuxChannelsConfig(getAuxChannelsConfig_cb _hidl_cb) {
128    return mEffect->getAuxChannelsConfig(_hidl_cb);
129}
130
131Return<Result> EqualizerEffect::setAuxChannelsConfig(
132        const EffectAuxChannelsConfig& config) {
133    return mEffect->setAuxChannelsConfig(config);
134}
135
136Return<Result> EqualizerEffect::setAudioSource(AudioSource source) {
137    return mEffect->setAudioSource(source);
138}
139
140Return<Result> EqualizerEffect::offload(const EffectOffloadParameter& param) {
141    return mEffect->offload(param);
142}
143
144Return<void> EqualizerEffect::getDescriptor(getDescriptor_cb _hidl_cb) {
145    return mEffect->getDescriptor(_hidl_cb);
146}
147
148Return<void> EqualizerEffect::prepareForProcessing(
149        prepareForProcessing_cb _hidl_cb) {
150    return mEffect->prepareForProcessing(_hidl_cb);
151}
152
153Return<Result> EqualizerEffect::setProcessBuffers(
154        const AudioBuffer& inBuffer, const AudioBuffer& outBuffer) {
155    return mEffect->setProcessBuffers(inBuffer, outBuffer);
156}
157
158Return<void> EqualizerEffect::command(
159        uint32_t commandId,
160        const hidl_vec<uint8_t>& data,
161        uint32_t resultMaxSize,
162        command_cb _hidl_cb) {
163    return mEffect->command(commandId, data, resultMaxSize, _hidl_cb);
164}
165
166Return<Result> EqualizerEffect::setParameter(
167        const hidl_vec<uint8_t>& parameter, const hidl_vec<uint8_t>& value) {
168    return mEffect->setParameter(parameter, value);
169}
170
171Return<void> EqualizerEffect::getParameter(
172        const hidl_vec<uint8_t>& parameter,
173        uint32_t valueMaxSize,
174        getParameter_cb _hidl_cb) {
175    return mEffect->getParameter(parameter, valueMaxSize, _hidl_cb);
176}
177
178Return<void> EqualizerEffect::getSupportedConfigsForFeature(
179        uint32_t featureId,
180        uint32_t maxConfigs,
181        uint32_t configSize,
182        getSupportedConfigsForFeature_cb _hidl_cb) {
183    return mEffect->getSupportedConfigsForFeature(featureId, maxConfigs, configSize, _hidl_cb);
184}
185
186Return<void> EqualizerEffect::getCurrentConfigForFeature(
187        uint32_t featureId,
188        uint32_t configSize,
189        getCurrentConfigForFeature_cb _hidl_cb) {
190    return mEffect->getCurrentConfigForFeature(featureId, configSize, _hidl_cb);
191}
192
193Return<Result> EqualizerEffect::setCurrentConfigForFeature(
194        uint32_t featureId, const hidl_vec<uint8_t>& configData) {
195    return mEffect->setCurrentConfigForFeature(featureId, configData);
196}
197
198Return<Result> EqualizerEffect::close() {
199    return mEffect->close();
200}
201
202// Methods from ::android::hardware::audio::effect::V2_0::IEqualizerEffect follow.
203Return<void> EqualizerEffect::getNumBands(getNumBands_cb _hidl_cb)  {
204    return mEffect->getIntegerParam(EQ_PARAM_NUM_BANDS, _hidl_cb);
205}
206
207Return<void> EqualizerEffect::getLevelRange(getLevelRange_cb _hidl_cb)  {
208    int16_t halLevels[2] = { 0, 0 };
209    Result retval = mEffect->getParam(EQ_PARAM_LEVEL_RANGE, halLevels);
210    _hidl_cb(retval, halLevels[0], halLevels[1]);
211    return Void();
212}
213
214Return<Result> EqualizerEffect::setBandLevel(uint16_t band, int16_t level)  {
215    return mEffect->setParam(EQ_PARAM_BAND_LEVEL, band, level);
216}
217
218Return<void> EqualizerEffect::getBandLevel(uint16_t band, getBandLevel_cb _hidl_cb)  {
219    int16_t halLevel = 0;
220    Result retval = mEffect->getParam(EQ_PARAM_BAND_LEVEL, band, halLevel);
221    _hidl_cb(retval, halLevel);
222    return Void();
223}
224
225Return<void> EqualizerEffect::getBandCenterFrequency(
226        uint16_t band, getBandCenterFrequency_cb _hidl_cb)  {
227    uint32_t halFreq = 0;
228    Result retval = mEffect->getParam(EQ_PARAM_CENTER_FREQ, band, halFreq);
229    _hidl_cb(retval, halFreq);
230    return Void();
231}
232
233Return<void> EqualizerEffect::getBandFrequencyRange(
234        uint16_t band, getBandFrequencyRange_cb _hidl_cb)  {
235    uint32_t halFreqs[2] = { 0, 0 };
236    Result retval = mEffect->getParam(EQ_PARAM_BAND_FREQ_RANGE, band, halFreqs);
237    _hidl_cb(retval, halFreqs[0], halFreqs[1]);
238    return Void();
239}
240
241Return<void> EqualizerEffect::getBandForFrequency(uint32_t freq, getBandForFrequency_cb _hidl_cb)  {
242    uint16_t halBand = 0;
243    Result retval = mEffect->getParam(EQ_PARAM_GET_BAND, freq, halBand);
244    _hidl_cb(retval, halBand);
245    return Void();
246}
247
248Return<void> EqualizerEffect::getPresetNames(getPresetNames_cb _hidl_cb)  {
249    uint16_t halPresetCount = 0;
250    Result retval = mEffect->getParam(EQ_PARAM_GET_NUM_OF_PRESETS, halPresetCount);
251    hidl_vec<hidl_string> presetNames;
252    if (retval == Result::OK) {
253        presetNames.resize(halPresetCount);
254        for (uint16_t i = 0; i < halPresetCount; ++i) {
255            char halPresetName[EFFECT_STRING_LEN_MAX];
256            retval = mEffect->getParam(EQ_PARAM_GET_PRESET_NAME, i, halPresetName);
257            if (retval == Result::OK) {
258                presetNames[i] = halPresetName;
259            } else {
260                presetNames.resize(i);
261            }
262        }
263    }
264    _hidl_cb(retval, presetNames);
265    return Void();
266}
267
268Return<Result> EqualizerEffect::setCurrentPreset(uint16_t preset)  {
269    return mEffect->setParam(EQ_PARAM_CUR_PRESET, preset);
270}
271
272Return<void> EqualizerEffect::getCurrentPreset(getCurrentPreset_cb _hidl_cb)  {
273    return mEffect->getIntegerParam(EQ_PARAM_CUR_PRESET, _hidl_cb);
274}
275
276Return<Result> EqualizerEffect::setAllProperties(
277        const IEqualizerEffect::AllProperties& properties)  {
278    t_equalizer_settings *halPropertiesPtr = nullptr;
279    std::vector<uint8_t> halBuffer = propertiesToHal(properties, &halPropertiesPtr);
280    uint32_t paramId = EQ_PARAM_PROPERTIES;
281    return mEffect->setParameterImpl(
282            sizeof(paramId), &paramId, halBuffer.size(), halPropertiesPtr);
283}
284
285Return<void> EqualizerEffect::getAllProperties(getAllProperties_cb _hidl_cb)  {
286    uint16_t numBands = 0;
287    Result retval = mEffect->getParam(EQ_PARAM_NUM_BANDS, numBands);
288    AllProperties properties;
289    if (retval != Result::OK) {
290        _hidl_cb(retval, properties);
291        return Void();
292    }
293    size_t valueSize = sizeof(t_equalizer_settings) + sizeof(int16_t) * numBands;
294    uint32_t paramId = EQ_PARAM_PROPERTIES;
295    retval = mEffect->getParameterImpl(
296            sizeof(paramId), &paramId, valueSize,
297            [&] (uint32_t, const void* valueData) {
298                const t_equalizer_settings* halProperties =
299                        reinterpret_cast<const t_equalizer_settings*>(valueData);
300                propertiesFromHal(*halProperties, &properties);
301            });
302    _hidl_cb(retval, properties);
303    return Void();
304}
305
306} // namespace implementation
307}  // namespace V2_0
308}  // namespace effect
309}  // namespace audio
310}  // namespace hardware
311}  // namespace android
312