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74 lines
1.9 KiB
74 lines
1.9 KiB
/*
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* Copyright (C) 2016 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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#include <android-base/logging.h>
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#include <cutils/properties.h>
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <linux/usb/ch9.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/endian.h>
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#include <unistd.h>
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#include "MtpDevHandle.h"
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namespace android {
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constexpr char mtp_dev_path[] = "/dev/mtp_usb";
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MtpDevHandle::MtpDevHandle()
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: mFd(-1) {};
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MtpDevHandle::~MtpDevHandle() {}
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int MtpDevHandle::read(void *data, size_t len) {
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return ::read(mFd, data, len);
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}
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int MtpDevHandle::write(const void *data, size_t len) {
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return ::write(mFd, data, len);
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}
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int MtpDevHandle::receiveFile(mtp_file_range mfr, bool) {
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return ioctl(mFd, MTP_RECEIVE_FILE, reinterpret_cast<unsigned long>(&mfr));
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}
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int MtpDevHandle::sendFile(mtp_file_range mfr) {
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return ioctl(mFd, MTP_SEND_FILE_WITH_HEADER, reinterpret_cast<unsigned long>(&mfr));
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}
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int MtpDevHandle::sendEvent(mtp_event me) {
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return ioctl(mFd, MTP_SEND_EVENT, reinterpret_cast<unsigned long>(&me));
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}
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int MtpDevHandle::start(bool /* ptp */) {
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mFd.reset(TEMP_FAILURE_RETRY(open(mtp_dev_path, O_RDWR)));
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if (mFd == -1) return -1;
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return 0;
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}
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void MtpDevHandle::close() {
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mFd.reset();
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}
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} // namespace android
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