b239b68376
- MTP support for multiple storage units - Add storage_id column to media database for MTP storage ID - Add framework resource for defining mount points and user visible descriptions for multiple volumes - Clean up locking in MtpServer JNI code Change-Id: Iffb66ed156ef5bc80b14228af78fbacee7734360
90 lines
2.4 KiB
Java
90 lines
2.4 KiB
Java
/*
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* Copyright (C) 2011 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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package android.mtp;
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/**
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* This class represents a storage unit on an MTP device.
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* Used only for MTP support in USB responder mode.
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* MtpStorageInfo is used in MTP host mode
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*
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* @hide
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*/
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public class MtpStorage {
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private final int mStorageId;
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private final String mPath;
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private final String mDescription;
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private final long mReserveSpace;
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public MtpStorage(int id, String path, String description, long reserveSpace) {
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mStorageId = id;
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mPath = path;
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mDescription = description;
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mReserveSpace = reserveSpace;
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}
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/**
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* Returns the storage ID for the storage unit
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*
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* @return the storage ID
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*/
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public final int getStorageId() {
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return mStorageId;
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}
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/**
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* Generates a storage ID for storage of given index.
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* Index 0 is for primary external storage
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*
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* @return the storage ID
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*/
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public static int getStorageId(int index) {
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// storage ID is 0x00010001 for primary storage,
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// then 0x00020001, 0x00030001, etc. for secondary storages
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return ((index + 1) << 16) + 1;
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}
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/**
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* Returns the file path for the storage unit's storage in the file system
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*
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* @return the storage file path
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*/
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public final String getPath() {
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return mPath;
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}
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/**
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* Returns the description string for the storage unit
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*
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* @return the storage unit description
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*/
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public final String getDescription() {
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return mDescription;
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}
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/**
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* Returns the amount of space to reserve on the storage file system.
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* This can be set to a non-zero value to prevent MTP from filling up the entire storage.
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*
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* @return the storage unit description
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*/
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public final long getReserveSpace() {
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return mReserveSpace;
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}
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}
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