1 /** 2 * Copyright 2021, 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 package android.media.tv.tuner; 18 19 import android.hardware.tv.tuner.FrontendScanType; 20 import android.hardware.tv.tuner.FrontendSettings; 21 import android.hardware.tv.tuner.FrontendStatus; 22 import android.hardware.tv.tuner.FrontendStatusReadiness; 23 import android.hardware.tv.tuner.FrontendStatusType; 24 import android.media.tv.tuner.ITunerFrontendCallback; 25 import android.media.tv.tuner.ITunerLnb; 26 27 /** 28 * Tuner Frontend interface handles frontend related operations. 29 * 30 * {@hide} 31 */ 32 interface ITunerFrontend { 33 /** 34 * Set the frontend callback. 35 * 36 * @param tunerFrontendCallback the callback to receive frontend related info. 37 */ setCallback(in ITunerFrontendCallback tunerFrontendCallback)38 void setCallback(in ITunerFrontendCallback tunerFrontendCallback); 39 40 /** 41 * Tunes the frontend to using the settings given. 42 * 43 * @param settings the settings to tune with. 44 */ tune(in FrontendSettings settings)45 void tune(in FrontendSettings settings); 46 47 /** 48 * Stop the previous tuning. 49 */ stopTune()50 void stopTune(); 51 52 /** 53 * Scan the frontend to use the settings given. 54 * 55 * @param settings the settings to scan with. 56 * @param frontendScanType scan with given type. 57 */ scan(in FrontendSettings settings, in FrontendScanType frontendScanType)58 void scan(in FrontendSettings settings, in FrontendScanType frontendScanType); 59 60 /** 61 * Stop the previous scanning. 62 */ stopScan()63 void stopScan(); 64 65 /** 66 * Sets Low-Noise Block downconverter (LNB) for satellite frontend. 67 * 68 * @param tuner lnb interface. 69 */ setLnb(in ITunerLnb lnb)70 void setLnb(in ITunerLnb lnb); 71 72 /** 73 * Link Frontend to the cicam with given id. 74 * 75 * @return lts id 76 */ linkCiCamToFrontend(in int ciCamId)77 int linkCiCamToFrontend(in int ciCamId); 78 79 /** 80 * Unink Frontend to the cicam with given id. 81 */ unlinkCiCamToFrontend(in int ciCamId)82 void unlinkCiCamToFrontend(in int ciCamId); 83 84 /** 85 * Releases the ITunerFrontend instance. 86 */ close()87 void close(); 88 89 /** 90 * Gets the statuses of the frontend. 91 */ getStatus(in FrontendStatusType[] statusTypes)92 FrontendStatus[] getStatus(in FrontendStatusType[] statusTypes); 93 94 /** 95 * Gets the id of the frontend. 96 */ getFrontendId()97 int getFrontendId(); 98 99 /** 100 * Request hardware information about the frontend. 101 */ getHardwareInfo()102 String getHardwareInfo(); 103 104 /** 105 * Filter out unnecessary PID from frontend output. 106 */ removeOutputPid(int pid)107 void removeOutputPid(int pid); 108 109 /** 110 * Gets FrontendStatus’ readiness statuses for given status types. 111 */ getFrontendStatusReadiness(in FrontendStatusType[] statusTypes)112 FrontendStatusReadiness[] getFrontendStatusReadiness(in FrontendStatusType[] statusTypes); 113 } 114