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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.nfc;
import android.util.proto.ProtoOutputStream;
/**
* Parameters for enabling NFC tag discovery and polling,
* and host card emulation.
*/
public final class NfcDiscoveryParameters {
public static class Builder {
private NfcDiscoveryParameters mParameters;
private Builder() {
mParameters = new NfcDiscoveryParameters();
}
public NfcDiscoveryParameters.Builder setTechMask(int techMask) {
mParameters.mTechMask = techMask;
return this;
}
public NfcDiscoveryParameters.Builder setEnableLowPowerDiscovery(boolean enable) {
mParameters.mEnableLowPowerDiscovery = enable;
return this;
}
public NfcDiscoveryParameters.Builder setEnableReaderMode(boolean enable) {
mParameters.mEnableReaderMode = enable;
if (enable) {
mParameters.mEnableLowPowerDiscovery = false;
}
return this;
}
public NfcDiscoveryParameters.Builder setEnableHostRouting(boolean enable) {
mParameters.mEnableHostRouting = enable;
return this;
}
public NfcDiscoveryParameters.Builder setEnableP2p(boolean enable) {
mParameters.mEnableP2p = enable;
return this;
}
public NfcDiscoveryParameters build() {
if (mParameters.mEnableReaderMode &&
(mParameters.mEnableLowPowerDiscovery || mParameters.mEnableP2p)) {
throw new IllegalStateException("Can't enable LPTD/P2P and reader mode " +
"simultaneously");
}
return mParameters;
}
}
static final int NFC_POLL_DEFAULT = -1;
// NOTE: when adding a new field, don't forget to update equals() and toString() below
private int mTechMask = 0;
private boolean mEnableLowPowerDiscovery = true;
private boolean mEnableReaderMode = false;
private boolean mEnableHostRouting = false;
private boolean mEnableP2p = false;
public NfcDiscoveryParameters() {}
public int getTechMask() {
return mTechMask;
}
public boolean shouldEnableLowPowerDiscovery() {
return mEnableLowPowerDiscovery;
}
public boolean shouldEnableReaderMode() {
return mEnableReaderMode;
}
public boolean shouldEnableHostRouting() {
return mEnableHostRouting;
}
public boolean shouldEnableDiscovery() {
return mTechMask != 0 || mEnableHostRouting;
}
public boolean shouldEnableP2p() {
return mEnableP2p;
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if ((obj == null) || (obj.getClass() != this.getClass())) {
return false;
}
NfcDiscoveryParameters params = (NfcDiscoveryParameters) obj;
return mTechMask == params.mTechMask &&
(mEnableLowPowerDiscovery == params.mEnableLowPowerDiscovery) &&
(mEnableReaderMode == params.mEnableReaderMode) &&
(mEnableHostRouting == params.mEnableHostRouting)
&& (mEnableP2p == params.mEnableP2p);
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
if (mTechMask == NFC_POLL_DEFAULT) {
sb.append("mTechMask: default\n");
} else {
sb.append("mTechMask: " + Integer.toString(mTechMask) + "\n");
}
sb.append("mEnableLPD: " + Boolean.toString(mEnableLowPowerDiscovery) + "\n");
sb.append("mEnableReader: " + Boolean.toString(mEnableReaderMode) + "\n");
sb.append("mEnableHostRouting: " + Boolean.toString(mEnableHostRouting) + "\n");
sb.append("mEnableP2p: " + Boolean.toString(mEnableP2p));
return sb.toString();
}
/** Dumps DiscoveryParamsProto for debugging. */
void dumpDebug(ProtoOutputStream proto) {
proto.write(DiscoveryParamsProto.TECH_MASK, mTechMask);
proto.write(DiscoveryParamsProto.ENABLE_LPD, mEnableLowPowerDiscovery);
proto.write(DiscoveryParamsProto.ENABLE_READER, mEnableReaderMode);
proto.write(DiscoveryParamsProto.ENABLE_HOST_ROUTING, mEnableHostRouting);
proto.write(DiscoveryParamsProto.ENABLE_P2P, mEnableP2p);
}
public static NfcDiscoveryParameters.Builder newBuilder() {
return new Builder();
}
public static NfcDiscoveryParameters getDefaultInstance() {
return new NfcDiscoveryParameters();
}
public static NfcDiscoveryParameters getNfcOffParameters() {
return new NfcDiscoveryParameters();
}
}
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