f9f3a358c4
Signed-off-by: Deokgyu Yang <secugyu@gmail.com> Change-Id: I08c0797b3b2158d342ceb1d138d0f46da70b4145
215 lines
7.3 KiB
C++
215 lines
7.3 KiB
C++
/*
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* Copyright (C) 2018 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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#include "core/default/ParametersUtil.h"
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#include "core/default/Conversions.h"
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#include "core/default/Util.h"
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#include <system/audio.h>
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#include <tinyalsa/asoundlib.h>
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namespace android {
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namespace hardware {
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namespace audio {
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namespace CPP_VERSION {
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namespace implementation {
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constexpr int SLOT_POSITIONS_0[] = { 0, 1, 0, 1 };
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constexpr int SLOT_POSITIONS_90[] = { 1, 1, 0, 0 };
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constexpr int SLOT_POSITIONS_180[] = { 1, 0, 1, 0 };
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constexpr int SLOT_POSITIONS_270[] = { 0, 0, 1, 1 };
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void setMixerValueByName(mixer *mixer, const char *name, int value) {
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const auto ctl = mixer_get_ctl_by_name(mixer, name);
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if (ctl == nullptr) {
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ALOGE("Failed to find mixer ctl for %s", name);
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return;
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}
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if (mixer_ctl_set_value(ctl, 0, value) < 0) {
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ALOGE("Failed to set ctl value %d for %s", value, name);
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return;
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}
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}
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void setSlotPositions(const int *values) {
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const auto mixer = mixer_open(0);
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if (mixer == nullptr) {
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ALOGE("Failed to open mixer");
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return;
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}
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setMixerValueByName(mixer, "FL ASPRX1 Slot Position", values[0]);
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setMixerValueByName(mixer, "FR ASPRX1 Slot Position", values[1]);
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setMixerValueByName(mixer, "RL ASPRX1 Slot Position", values[2]);
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setMixerValueByName(mixer, "RR ASPRX1 Slot Position", values[3]);
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mixer_close(mixer);
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};
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/** Converts a status_t in Result according to the rules of AudioParameter::get*
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* Note: Static method and not private method to avoid leaking status_t dependency
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*/
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static Result getHalStatusToResult(status_t status) {
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switch (status) {
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case OK:
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return Result::OK;
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case BAD_VALUE: // Nothing was returned, probably because the HAL does
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// not handle it
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return Result::NOT_SUPPORTED;
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case INVALID_OPERATION: // Conversion from string to the requested type
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// failed
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return Result::INVALID_ARGUMENTS;
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default: // Should not happen
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ALOGW("Unexpected status returned by getParam: %u", status);
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return Result::INVALID_ARGUMENTS;
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}
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}
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Result ParametersUtil::getParam(const char* name, bool* value) {
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String8 halValue;
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Result retval = getParam(name, &halValue);
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*value = false;
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if (retval == Result::OK) {
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if (halValue.empty()) {
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return Result::NOT_SUPPORTED;
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}
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*value = !(halValue == AudioParameter::valueOff);
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}
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return retval;
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}
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Result ParametersUtil::getParam(const char* name, int* value) {
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const String8 halName(name);
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AudioParameter keys;
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keys.addKey(halName);
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std::unique_ptr<AudioParameter> params = getParams(keys);
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return getHalStatusToResult(params->getInt(halName, *value));
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}
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Result ParametersUtil::getParam(const char* name, String8* value, AudioParameter context) {
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const String8 halName(name);
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context.addKey(halName);
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std::unique_ptr<AudioParameter> params = getParams(context);
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return getHalStatusToResult(params->get(halName, *value));
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}
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void ParametersUtil::getParametersImpl(
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const hidl_vec<ParameterValue>& context, const hidl_vec<hidl_string>& keys,
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std::function<void(Result retval, const hidl_vec<ParameterValue>& parameters)> cb) {
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AudioParameter halKeys;
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for (auto& pair : context) {
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halKeys.add(String8(pair.key.c_str()), String8(pair.value.c_str()));
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}
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for (size_t i = 0; i < keys.size(); ++i) {
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halKeys.addKey(String8(keys[i].c_str()));
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}
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std::unique_ptr<AudioParameter> halValues = getParams(halKeys);
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Result retval =
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(keys.size() == 0 || halValues->size() != 0) ? Result::OK : Result::NOT_SUPPORTED;
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hidl_vec<ParameterValue> result;
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result.resize(halValues->size());
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String8 halKey, halValue;
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for (size_t i = 0; i < halValues->size(); ++i) {
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status_t status = halValues->getAt(i, halKey, halValue);
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if (status != OK) {
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result.resize(0);
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retval = getHalStatusToResult(status);
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break;
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}
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result[i].key = halKey.string();
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result[i].value = halValue.string();
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}
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cb(retval, result);
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}
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std::unique_ptr<AudioParameter> ParametersUtil::getParams(const AudioParameter& keys) {
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String8 paramsAndValues;
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char* halValues = halGetParameters(keys.keysToString().string());
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if (halValues != NULL) {
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paramsAndValues.setTo(halValues);
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free(halValues);
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} else {
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paramsAndValues.clear();
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}
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return std::unique_ptr<AudioParameter>(new AudioParameter(paramsAndValues));
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}
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Result ParametersUtil::setParam(const char* name, const char* value) {
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AudioParameter param;
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param.add(String8(name), String8(value));
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return setParams(param);
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}
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Result ParametersUtil::setParam(const char* name, bool value) {
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AudioParameter param;
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param.add(String8(name), String8(value ? AudioParameter::valueOn : AudioParameter::valueOff));
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return setParams(param);
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}
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Result ParametersUtil::setParam(const char* name, int value) {
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AudioParameter param;
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param.addInt(String8(name), value);
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return setParams(param);
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}
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Result ParametersUtil::setParam(const char* name, float value) {
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AudioParameter param;
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param.addFloat(String8(name), value);
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return setParams(param);
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}
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Result ParametersUtil::setParametersImpl(const hidl_vec<ParameterValue>& context,
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const hidl_vec<ParameterValue>& parameters) {
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AudioParameter params;
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for (auto& pair : context) {
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params.add(String8(pair.key.c_str()), String8(pair.value.c_str()));
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}
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for (size_t i = 0; i < parameters.size(); ++i) {
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if (parameters[i].key == "rotation") {
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if (parameters[i].value == "0") {
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setSlotPositions(SLOT_POSITIONS_0);
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} else if (parameters[i].value == "90") {
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setSlotPositions(SLOT_POSITIONS_90);
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} else if (parameters[i].value == "180") {
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setSlotPositions(SLOT_POSITIONS_180);
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} else if (parameters[i].value == "270") {
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setSlotPositions(SLOT_POSITIONS_270);
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}
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continue;
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}
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params.add(String8(parameters[i].key.c_str()), String8(parameters[i].value.c_str()));
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}
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return setParams(params);
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}
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Result ParametersUtil::setParam(const char* name, const DeviceAddress& address) {
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AudioParameter params(String8(deviceAddressToHal(address).c_str()));
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params.addInt(String8(name), int(address.device));
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return setParams(params);
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}
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Result ParametersUtil::setParams(const AudioParameter& param) {
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int halStatus = halSetParameters(param.toString().string());
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return util::analyzeStatus(halStatus);
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}
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} // namespace implementation
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} // namespace CPP_VERSION
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} // namespace audio
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} // namespace hardware
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} // namespace android
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