| /* |
| * 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> |
| |
| #ifdef MTP_DEVICE |
| #include <linux/usb/f_mtp.h> |
| #endif |
| |
| #include "MtpEventPacket.h" |
| |
| #include <usbhost/usbhost.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 |
| int MtpEventPacket::sendRequest(struct usb_request *request) { |
| request->buffer = mBuffer; |
| request->buffer_length = mBufferSize; |
| mPacketSize = 0; |
| if (usb_request_queue(request)) { |
| ALOGE("usb_endpoint_queue failed, errno: %d", errno); |
| return -1; |
| } |
| return 0; |
| } |
| |
| int MtpEventPacket::readResponse(struct usb_device *device) { |
| struct usb_request* const req = usb_request_wait(device); |
| if (req) { |
| mPacketSize = req->actual_length; |
| return req->actual_length; |
| } else { |
| return -1; |
| } |
| } |
| #endif |
| |
| } // namespace android |