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      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 #define LOG_TAG "Tuner"
     18 //#define LOG_NDEBUG 0
     19 
     20 #include <log/log.h>
     21 
     22 #include "BroadcastRadio.h"
     23 #include "Tuner.h"
     24 #include "Utils.h"
     25 #include <system/RadioMetadataWrapper.h>
     26 
     27 namespace android {
     28 namespace hardware {
     29 namespace broadcastradio {
     30 namespace V1_0 {
     31 namespace implementation {
     32 
     33 void Tuner::onCallback(radio_hal_event_t *halEvent)
     34 {
     35     BandConfig config;
     36     ProgramInfo info;
     37     hidl_vec<MetaData> metadata;
     38 
     39     if (mCallback != 0) {
     40         switch(halEvent->type) {
     41         case RADIO_EVENT_CONFIG:
     42             Utils::convertBandConfigFromHal(&config, &halEvent->config);
     43             mCallback->configChange(Utils::convertHalResult(halEvent->status), config);
     44             break;
     45         case RADIO_EVENT_ANTENNA:
     46             mCallback->antennaStateChange(halEvent->on);
     47             break;
     48         case RADIO_EVENT_TUNED:
     49             Utils::convertProgramInfoFromHal(&info, &halEvent->info);
     50             mCallback->tuneComplete(Utils::convertHalResult(halEvent->status), info);
     51             break;
     52         case RADIO_EVENT_METADATA: {
     53             uint32_t channel;
     54             uint32_t sub_channel;
     55             if (radio_metadata_get_channel(halEvent->metadata, &channel, &sub_channel) == 0) {
     56                 Utils::convertMetaDataFromHal(metadata, halEvent->metadata);
     57                 mCallback->newMetadata(channel, sub_channel, metadata);
     58             }
     59             } break;
     60         case RADIO_EVENT_TA:
     61             mCallback->trafficAnnouncement(halEvent->on);
     62             break;
     63         case RADIO_EVENT_AF_SWITCH:
     64             Utils::convertProgramInfoFromHal(&info, &halEvent->info);
     65             mCallback->afSwitch(info);
     66             break;
     67         case RADIO_EVENT_EA:
     68             mCallback->emergencyAnnouncement(halEvent->on);
     69             break;
     70         case RADIO_EVENT_HW_FAILURE:
     71         default:
     72             mCallback->hardwareFailure();
     73             break;
     74         }
     75     }
     76 }
     77 
     78 //static
     79 void Tuner::callback(radio_hal_event_t *halEvent, void *cookie)
     80 {
     81     wp<Tuner> weak(reinterpret_cast<Tuner*>(cookie));
     82     sp<Tuner> tuner = weak.promote();
     83     if (tuner == 0) return;
     84     tuner->onCallback(halEvent);
     85 }
     86 
     87 Tuner::Tuner(const sp<ITunerCallback>& callback, const wp<BroadcastRadio>& parentDevice)
     88     : mHalTuner(NULL), mCallback(callback), mParentDevice(parentDevice)
     89 {
     90     ALOGV("%s", __FUNCTION__);
     91 }
     92 
     93 
     94 Tuner::~Tuner()
     95 {
     96     ALOGV("%s", __FUNCTION__);
     97     const sp<BroadcastRadio> parentDevice = mParentDevice.promote();
     98     if (parentDevice != 0) {
     99         parentDevice->closeHalTuner(mHalTuner);
    100     }
    101 }
    102 
    103 // Methods from ::android::hardware::broadcastradio::V1_0::ITuner follow.
    104 Return<Result> Tuner::setConfiguration(const BandConfig& config)  {
    105     ALOGV("%s", __FUNCTION__);
    106     if (mHalTuner == NULL) {
    107         return Utils::convertHalResult(-ENODEV);
    108     }
    109     radio_hal_band_config_t halConfig;
    110     Utils::convertBandConfigToHal(&halConfig, &config);
    111     int rc = mHalTuner->set_configuration(mHalTuner, &halConfig);
    112     return Utils::convertHalResult(rc);
    113 }
    114 
    115 Return<void> Tuner::getConfiguration(getConfiguration_cb _hidl_cb)  {
    116     int rc;
    117     radio_hal_band_config_t halConfig;
    118     BandConfig config;
    119 
    120     ALOGV("%s", __FUNCTION__);
    121     if (mHalTuner == NULL) {
    122         rc = -ENODEV;
    123         goto exit;
    124     }
    125     rc = mHalTuner->get_configuration(mHalTuner, &halConfig);
    126     if (rc == 0) {
    127         Utils::convertBandConfigFromHal(&config, &halConfig);
    128     }
    129 
    130 exit:
    131     _hidl_cb(Utils::convertHalResult(rc), config);
    132     return Void();
    133 }
    134 
    135 Return<Result> Tuner::scan(Direction direction, bool skipSubChannel)  {
    136     if (mHalTuner == NULL) {
    137         return Utils::convertHalResult(-ENODEV);
    138     }
    139     int rc = mHalTuner->scan(mHalTuner, static_cast<radio_direction_t>(direction), skipSubChannel);
    140     return Utils::convertHalResult(rc);
    141 }
    142 
    143 Return<Result> Tuner::step(Direction direction, bool skipSubChannel)  {
    144     if (mHalTuner == NULL) {
    145         return Utils::convertHalResult(-ENODEV);
    146     }
    147     int rc = mHalTuner->step(mHalTuner, static_cast<radio_direction_t>(direction), skipSubChannel);
    148     return Utils::convertHalResult(rc);
    149 }
    150 
    151 Return<Result> Tuner::tune(uint32_t channel, uint32_t subChannel)  {
    152     if (mHalTuner == NULL) {
    153         return Utils::convertHalResult(-ENODEV);
    154     }
    155     int rc = mHalTuner->tune(mHalTuner, channel, subChannel);
    156     return Utils::convertHalResult(rc);
    157 }
    158 
    159 Return<Result> Tuner::cancel()  {
    160     if (mHalTuner == NULL) {
    161         return Utils::convertHalResult(-ENODEV);
    162     }
    163     int rc = mHalTuner->cancel(mHalTuner);
    164     return Utils::convertHalResult(rc);
    165 }
    166 
    167 Return<void> Tuner::getProgramInformation(getProgramInformation_cb _hidl_cb)  {
    168     int rc;
    169     radio_program_info_t halInfo;
    170     RadioMetadataWrapper metadataWrapper(&halInfo.metadata);
    171     ProgramInfo info;
    172 
    173     ALOGV("%s", __FUNCTION__);
    174     if (mHalTuner == NULL) {
    175         rc = -ENODEV;
    176         goto exit;
    177     }
    178 
    179     rc = mHalTuner->get_program_information(mHalTuner, &halInfo);
    180     if (rc == 0) {
    181         Utils::convertProgramInfoFromHal(&info, &halInfo);
    182     }
    183 
    184 exit:
    185     _hidl_cb(Utils::convertHalResult(rc), info);
    186     return Void();
    187 }
    188 
    189 } // namespace implementation
    190 }  // namespace V1_0
    191 }  // namespace broadcastradio
    192 }  // namespace hardware
    193 }  // namespace android
    194