nexus/Controller.h

/*
 * 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.
 */
#ifndef _CONTROLLER_H
#define _CONTROLLER_H

#include "../../../frameworks/base/include/utils/List.h"

class Controller {
private:
    const char *mName;
    
public:
    Controller(const char *name);
    virtual ~Controller() {}

    virtual int start();
    virtual int stop();

    virtual int enable() = 0;
    virtual int disable() = 0;

    virtual const char *getName() { return mName; }

protected:
    int loadKernelModule(char *modpath, const char *args);
    bool isKernelModuleLoaded(const char *modtag);
    int unloadKernelModule(const char *modtag);

private:
    void *loadFile(char *filename, unsigned int *_size);
};

typedef android::List<Controller *> ControllerCollection;
#endif