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62 lines
1.5 KiB
62 lines
1.5 KiB
4 months ago
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/*
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* Copyright (C) 2010 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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#define LOG_TAG "MtpResponsePacket"
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#include <stdio.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include "IMtpHandle.h"
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#include "MtpResponsePacket.h"
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#include <usbhost/usbhost.h>
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namespace android {
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MtpResponsePacket::MtpResponsePacket()
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: MtpPacket(512)
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{
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}
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MtpResponsePacket::~MtpResponsePacket() {
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}
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#ifdef MTP_DEVICE
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int MtpResponsePacket::write(IMtpHandle *h) {
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putUInt32(MTP_CONTAINER_LENGTH_OFFSET, mPacketSize);
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putUInt16(MTP_CONTAINER_TYPE_OFFSET, MTP_CONTAINER_TYPE_RESPONSE);
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int ret = h->write(mBuffer, mPacketSize);
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return (ret < 0 ? ret : 0);
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}
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#endif
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#ifdef MTP_HOST
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int MtpResponsePacket::read(struct usb_request *request) {
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request->buffer = mBuffer;
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request->buffer_length = mBufferSize;
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int ret = transfer(request);
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if (ret >= 0)
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mPacketSize = ret;
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else
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mPacketSize = 0;
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return ret;
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}
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#endif
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} // namespace android
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