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/*
* Copyright (C) 2008 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.
*/
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#define LOG_TAG "UsbController"
#include <cutils/log.h>
#include <cutils/properties.h>
#include <string.h>
#include "UsbController.h"
UsbController::UsbController() {
}
UsbController::~UsbController() {
}
int UsbController::startRNDIS() {
LOGD("Usb RNDIS start");
return enableRNDIS(true);
}
int UsbController::stopRNDIS() {
LOGD("Usb RNDIS stop");
return enableRNDIS(false);
}
int UsbController::enableRNDIS(bool enable) {
char ums;
int fdums = open("/sys/devices/platform/msm_hsusb/gadget/lun0/file", O_RDWR);
read(fdums, &ums, 1);
close(fdums);
if (ums == '/')
return 0;
char value[20];
int fd = open("/sys/module/g_android/parameters/product_id", O_RDWR);
int count = snprintf(value, sizeof(value), "%s\n", (enable ? "1364" : "1351"));
write(fd, value, count);
close(fd);
return 0;
}
bool UsbController::isRNDISStarted() {
char value[5];
int fd = open("/sys/module/g_android/parameters/product_id", O_RDONLY);
read(fd, &value, 5);
close(fd);
return (!strncmp(value,"1364",4) ? true : false);
}
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