| /* |
| * Copyright (C) 2010 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. |
| */ |
| |
| #define LOG_TAG "MtpEventPacket" |
| |
| #include <stdio.h> |
| #include <sys/types.h> |
| #include <fcntl.h> |
| #include <sys/ioctl.h> |
| |
| #include <linux/usb/f_mtp.h> |
| |
| #include "MtpEventPacket.h" |
| |
| namespace android { |
| |
| MtpEventPacket::MtpEventPacket() |
| : MtpPacket(512) |
| { |
| } |
| |
| MtpEventPacket::~MtpEventPacket() { |
| } |
| |
| #ifdef MTP_DEVICE |
| int MtpEventPacket::write(int fd) { |
| struct mtp_event event; |
| |
| putUInt32(MTP_CONTAINER_LENGTH_OFFSET, mPacketSize); |
| putUInt16(MTP_CONTAINER_TYPE_OFFSET, MTP_CONTAINER_TYPE_EVENT); |
| |
| event.data = mBuffer; |
| event.length = mPacketSize; |
| int ret = ::ioctl(fd, MTP_SEND_EVENT, (unsigned long)&event); |
| return (ret < 0 ? ret : 0); |
| } |
| #endif |
| |
| #ifdef MTP_HOST |
| // read our buffer from the given endpoint |
| int MtpEventPacket::read(struct usb_endpoint *ep) { |
| int ret = transfer(ep, mBuffer, mBufferSize); |
| if (ret >= 0) |
| mPacketSize = ret; |
| else |
| mPacketSize = 0; |
| return ret; |
| } |
| #endif |
| |
| } // namespace android |
| |