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/*
* 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 "mtp_usb"
#include "cutils/log.h"
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include "MtpServer.h"
#include "MtpStorage.h"
#include "f_mtp.h"
using namespace android;
static bool enable_usb_function(const char* name, bool enable) {
char path[PATH_MAX];
snprintf(path, sizeof(path), "/sys/class/usb_composite/%s/enable", name);
int fd = open(path, O_RDWR);
if (fd < 0) {
fprintf(stderr, "could not open %s in enable_usb_function\n", path);
return false;
}
write(fd, enable ? "1" : "0", 2);
close(fd);
return true;
}
int main(int argc, char* argv[]) {
bool usePTP = false;
const char* storagePath = "/sdcard";
for (int i = 1; i < argc; i++) {
const char* arg = argv[i];
if (!strcmp(arg, "-p"))
usePTP = true;
else if (arg[0] == '/')
storagePath = arg;
}
int fd = open("/dev/mtp_usb", O_RDWR);
printf("open returned %d\n", fd);
if (fd < 0) {
fprintf(stderr, "could not open MTP driver\n");
return -1;
}
if (usePTP) {
// set driver mode to PTP
int ret = ioctl(fd, MTP_SET_INTERFACE_MODE, MTP_INTERFACE_MODE_PTP);
if (ret) {
fprintf(stderr, "MTP_SET_INTERFACE_MODE failed\n");
return -1;
}
}
// disable UMS and enable MTP USB functions
enable_usb_function("usb_mass_storage", false);
enable_usb_function("mtp", true);
MtpServer server(fd, "/data/data/mtp/mtp.db");
server.addStorage(storagePath);
server.scanStorage();
server.run();
close(fd);
return 0;
}
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