d21eac9c70
Uses a new "MTP objects" table in the media provider to support basic enumeration of the external storage file system. Support for accessing audio, video and image metadata in the existing media provider tables will be added in a later commit. The C++ MtpDatabase class is now abstract, to support a proxy subclass that calls through JNI to the Java MtpDatabase class in the media provider. Change-Id: I90f0db5f3acc5d35ae78c27a8507edff16d14305 Signed-off-by: Mike Lockwood <lockwood@android.com>
92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
/*
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* Copyright (C) 2010 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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#define LOG_TAG "mtp_usb"
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#include "MtpDebug.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include "MtpServer.h"
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#include "MtpSqliteDatabase.h"
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#include "MtpStorage.h"
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#include "f_mtp.h"
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#include "private/android_filesystem_config.h"
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using namespace android;
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static bool enable_usb_function(const char* name, bool enable) {
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char path[PATH_MAX];
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snprintf(path, sizeof(path), "/sys/class/usb_composite/%s/enable", name);
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int fd = open(path, O_RDWR);
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if (fd < 0) {
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fprintf(stderr, "could not open %s in enable_usb_function\n", path);
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return false;
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}
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write(fd, enable ? "1" : "0", 2);
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close(fd);
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return true;
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}
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int main(int argc, char* argv[]) {
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bool usePTP = false;
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const char* storagePath = "/sdcard";
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for (int i = 1; i < argc; i++) {
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const char* arg = argv[i];
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if (!strcmp(arg, "-p"))
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usePTP = true;
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else if (arg[0] == '/')
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storagePath = arg;
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}
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int fd = open("/dev/mtp_usb", O_RDWR);
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printf("open returned %d\n", fd);
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if (fd < 0) {
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fprintf(stderr, "could not open MTP driver\n");
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return -1;
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}
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if (usePTP) {
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// set driver mode to PTP
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int ret = ioctl(fd, MTP_SET_INTERFACE_MODE, MTP_INTERFACE_MODE_PTP);
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if (ret) {
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fprintf(stderr, "MTP_SET_INTERFACE_MODE failed\n");
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return -1;
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}
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}
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// disable UMS and enable MTP USB functions
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enable_usb_function("usb_mass_storage", false);
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enable_usb_function("mtp", true);
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MtpSqliteDatabase* database = new MtpSqliteDatabase();
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database->open("/data/data/mtp/mtp.db", true);
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MtpServer server(fd, database, AID_SDCARD_RW, 0664, 0775);
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server.addStorage(storagePath);
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server.scanStorage();
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server.run();
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close(fd);
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return 0;
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}
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