diff options
Diffstat (limited to 'media/mtp/MtpEventPacket.cpp')
-rw-r--r-- | media/mtp/MtpEventPacket.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/media/mtp/MtpEventPacket.cpp b/media/mtp/MtpEventPacket.cpp new file mode 100644 index 0000000..fc74542 --- /dev/null +++ b/media/mtp/MtpEventPacket.cpp @@ -0,0 +1,67 @@ +/* + * 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" + +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 + |